From 320cde19a4e8f122b19d2df7a5c00636e11ca3fb Mon Sep 17 00:00:00 2001 From: Nicholas Santos Date: Fri, 28 Dec 2012 22:07:02 -0500 Subject: HID: usbhid: quirk for Formosa IR receiver Patch to add the Formosa Industrial Computing, Inc. Infrared Receiver [IR605A/Q] to hid-ids.h and hid-quirks.c. This IR receiver causes about a 10 second timeout when the usbhid driver attempts to initialze the device. Adding this device to the quirks list with HID_QUIRK_NO_INIT_REPORTS removes the delay. Signed-off-by: Nicholas Santos [jkosina@suse.cz: fix ordering] Signed-off-by: Jiri Kosina --- drivers/hid/hid-ids.h | 3 +++ drivers/hid/usbhid/hid-quirks.c | 1 + 2 files changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 4dfa605e2d14..34e25471aeaa 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -306,6 +306,9 @@ #define USB_VENDOR_ID_EZKEY 0x0518 #define USB_DEVICE_ID_BTC_8193 0x0002 +#define USB_VENDOR_ID_FORMOSA 0x147a +#define USB_DEVICE_ID_FORMOSA_IR_RECEIVER 0xe03e + #define USB_VENDOR_ID_FREESCALE 0x15A2 #define USB_DEVICE_ID_FREESCALE_MX28 0x004F diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c index ac9e35228254..e0e6abf1cd3b 100644 --- a/drivers/hid/usbhid/hid-quirks.c +++ b/drivers/hid/usbhid/hid-quirks.c @@ -70,6 +70,7 @@ static const struct hid_blacklist { { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET }, { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET }, { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET }, + { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET }, { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET }, { USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE, HID_QUIRK_NO_INIT_REPORTS }, -- cgit v1.2.3 From eed307e290b96636def331375e065aca43f9069a Mon Sep 17 00:00:00 2001 From: AceLan Kao Date: Tue, 11 Dec 2012 11:41:20 +0800 Subject: Bluetooth: Add support for IMC Networks [13d3:3393] Add support for the AR9462 chip T: Bus=02 Lev=02 Prnt=02 Port=04 Cnt=01 Dev#= 3 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=13d3 ProdID=3393 Rev=00.01 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb Signed-off-by: AceLan Kao Signed-off-by: Gustavo Padovan --- drivers/bluetooth/ath3k.c | 2 ++ drivers/bluetooth/btusb.c | 1 + 2 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index b00000e8aef6..3418bf988d01 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -81,6 +81,7 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x0CF3, 0xE004) }, { USB_DEVICE(0x0930, 0x0219) }, { USB_DEVICE(0x0489, 0xe057) }, + { USB_DEVICE(0x13d3, 0x3393) }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xE02C) }, @@ -108,6 +109,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU22 with sflash firmware */ { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index a1d4ede5b892..acd5be40fc04 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -139,6 +139,7 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, -- cgit v1.2.3 From 2c262b2a5235b7f5b18d4d58394511f76371d7cb Mon Sep 17 00:00:00 2001 From: Daniel Schaal Date: Sat, 29 Dec 2012 11:14:34 +0100 Subject: Bluetooth: Add support for GC-WB300D PCIe [04ca:3006] to ath3k. T: Bus=02 Lev=02 Prnt=02 Port=06 Cnt=01 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=04ca ProdID=3006 Rev= 0.02 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms Signed-off-by: Daniel Schaal Signed-off-by: Gustavo Padovan --- drivers/bluetooth/ath3k.c | 2 ++ drivers/bluetooth/btusb.c | 1 + 2 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index 3418bf988d01..afe9d8e8901d 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -77,6 +77,7 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x0CF3, 0x311D) }, { USB_DEVICE(0x13d3, 0x3375) }, { USB_DEVICE(0x04CA, 0x3005) }, + { USB_DEVICE(0x04CA, 0x3006) }, { USB_DEVICE(0x13d3, 0x3362) }, { USB_DEVICE(0x0CF3, 0xE004) }, { USB_DEVICE(0x0930, 0x0219) }, @@ -105,6 +106,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index acd5be40fc04..83ff97089e31 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -135,6 +135,7 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, -- cgit v1.2.3 From 3a61eda81ebcfc006ebb1496764299d53e5bf67f Mon Sep 17 00:00:00 2001 From: AceLan Kao Date: Thu, 3 Jan 2013 12:24:59 +0800 Subject: Bluetooth: Add support for Foxconn / Hon Hai [0489:e04e] Add support for the AR9462 chip T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 5 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e04e Rev=00.02 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb Signed-off-by: AceLan Kao Signed-off-by: Gustavo Padovan --- drivers/bluetooth/ath3k.c | 2 ++ drivers/bluetooth/btusb.c | 1 + 2 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index afe9d8e8901d..47fc6b5c6488 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -83,6 +83,7 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x0930, 0x0219) }, { USB_DEVICE(0x0489, 0xe057) }, { USB_DEVICE(0x13d3, 0x3393) }, + { USB_DEVICE(0x0489, 0xe04e) }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xE02C) }, @@ -112,6 +113,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU22 with sflash firmware */ { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 83ff97089e31..9a52f8b6bfd9 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -141,6 +141,7 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, -- cgit v1.2.3 From 2582d529c44d12502a700f1c3db062b9f44679bc Mon Sep 17 00:00:00 2001 From: AceLan Kao Date: Thu, 3 Jan 2013 12:25:00 +0800 Subject: Bluetooth: Add support for Foxconn / Hon Hai [0489:e056] Add support for the AR9462 chip T: Bus=01 Lev=02 Prnt=02 Port=05 Cnt=01 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e056 Rev=00.01 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb Signed-off-by: AceLan Kao Signed-off-by: Gustavo Padovan --- drivers/bluetooth/ath3k.c | 2 ++ drivers/bluetooth/btusb.c | 1 + 2 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index 47fc6b5c6488..be178949bc8b 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -84,6 +84,7 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x0489, 0xe057) }, { USB_DEVICE(0x13d3, 0x3393) }, { USB_DEVICE(0x0489, 0xe04e) }, + { USB_DEVICE(0x0489, 0xe056) }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xE02C) }, @@ -114,6 +115,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU22 with sflash firmware */ { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 9a52f8b6bfd9..3f6a993539e8 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -142,6 +142,7 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, -- cgit v1.2.3 From f4d6f7dce71a5da93da50272ff1670bf2f1146b1 Mon Sep 17 00:00:00 2001 From: Sergio Cambra Date: Thu, 10 Jan 2013 01:06:55 +0100 Subject: Bluetooth device 04ca:3008 should use ath3k Output of /sys/kernel/debug/usb/devices T: Bus=03 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 6 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=04ca ProdID=3008 Rev= 0.02 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms Signed-off-by: Sergio Cambra Signed-off-by: Gustavo Padovan --- drivers/bluetooth/ath3k.c | 2 ++ drivers/bluetooth/btusb.c | 1 + 2 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index be178949bc8b..33c9a44a9678 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -78,6 +78,7 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x13d3, 0x3375) }, { USB_DEVICE(0x04CA, 0x3005) }, { USB_DEVICE(0x04CA, 0x3006) }, + { USB_DEVICE(0x04CA, 0x3008) }, { USB_DEVICE(0x13d3, 0x3362) }, { USB_DEVICE(0x0CF3, 0xE004) }, { USB_DEVICE(0x0930, 0x0219) }, @@ -109,6 +110,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 3f6a993539e8..7e351e345476 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -136,6 +136,7 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, -- cgit v1.2.3 From d7b9c5204e9c6810a20d509ee47bc70419096e59 Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Tue, 8 Jan 2013 17:53:10 -0800 Subject: mwifiex: update config_bands during infra association Currently "adapter->config_bands" is updated during infra association only if channel is provided by user in "iw connect" command. config_bands is used while preparing association request to calculate supported rates by intersecting our rates with the rates advertised by AP. There is corner case in which we include zero rates in supported rates TLV based on previous IBSS network history, which leads to association failure. This patch fixes the problem by correctly updating config_bands. Cc: "3.7.y" Signed-off-by: Amitkumar Karwar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/cfg80211.c | 15 +-------------- drivers/net/wireless/mwifiex/sta_ioctl.c | 14 ++++++++++++++ 2 files changed, 15 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index efe525be27dd..e74e1b99419a 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -1459,7 +1459,7 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid, struct cfg80211_ssid req_ssid; int ret, auth_type = 0; struct cfg80211_bss *bss = NULL; - u8 is_scanning_required = 0, config_bands = 0; + u8 is_scanning_required = 0; memset(&req_ssid, 0, sizeof(struct cfg80211_ssid)); @@ -1478,19 +1478,6 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid, /* disconnect before try to associate */ mwifiex_deauthenticate(priv, NULL); - if (channel) { - if (mode == NL80211_IFTYPE_STATION) { - if (channel->band == IEEE80211_BAND_2GHZ) - config_bands = BAND_B | BAND_G | BAND_GN; - else - config_bands = BAND_A | BAND_AN; - - if (!((config_bands | priv->adapter->fw_bands) & - ~priv->adapter->fw_bands)) - priv->adapter->config_bands = config_bands; - } - } - /* As this is new association, clear locally stored * keys and security related flags */ priv->sec_info.wpa_enabled = false; diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c index 60e88b58039d..f542bb8ccbc8 100644 --- a/drivers/net/wireless/mwifiex/sta_ioctl.c +++ b/drivers/net/wireless/mwifiex/sta_ioctl.c @@ -283,6 +283,20 @@ int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss, if (ret) goto done; + if (bss_desc) { + u8 config_bands = 0; + + if (mwifiex_band_to_radio_type((u8) bss_desc->bss_band) + == HostCmd_SCAN_RADIO_TYPE_BG) + config_bands = BAND_B | BAND_G | BAND_GN; + else + config_bands = BAND_A | BAND_AN; + + if (!((config_bands | adapter->fw_bands) & + ~adapter->fw_bands)) + adapter->config_bands = config_bands; + } + ret = mwifiex_check_network_compatibility(priv, bss_desc); if (ret) goto done; -- cgit v1.2.3 From 3b86acb8088d0c7c4cddc340a13dec5cef110e30 Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Tue, 8 Jan 2013 17:53:11 -0800 Subject: mwifiex: correct config_bands handling for ibss network BAND_G is implicit when BAND_GN is present. Signed-off-by: Amitkumar Karwar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/cfg80211.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index e74e1b99419a..cdb11b3964e2 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -1694,7 +1694,7 @@ static int mwifiex_set_ibss_params(struct mwifiex_private *priv, if (cfg80211_get_chandef_type(¶ms->chandef) != NL80211_CHAN_NO_HT) - config_bands |= BAND_GN; + config_bands |= BAND_G | BAND_GN; } else { if (cfg80211_get_chandef_type(¶ms->chandef) == NL80211_CHAN_NO_HT) -- cgit v1.2.3 From 0981c3b24ef664f5611008a6e6d0622fac6d892b Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Wed, 9 Jan 2013 16:07:48 +0530 Subject: ath9k_htc: Fix memory leak SKBs that are allocated in the HTC layer do not have callbacks registered and hence ended up not being freed, Fix this by freeing them properly in the TX completion routine. Cc: Reported-by: Larry Finger Signed-off-by: Sujith Manoharan Tested-by: Larry Finger Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/htc_hst.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/htc_hst.c b/drivers/net/wireless/ath/ath9k/htc_hst.c index 4a9570dfba72..aac4a406a513 100644 --- a/drivers/net/wireless/ath/ath9k/htc_hst.c +++ b/drivers/net/wireless/ath/ath9k/htc_hst.c @@ -344,6 +344,8 @@ void ath9k_htc_txcompletion_cb(struct htc_target *htc_handle, endpoint->ep_callbacks.tx(endpoint->ep_callbacks.priv, skb, htc_hdr->endpoint_id, txok); + } else { + kfree_skb(skb); } } -- cgit v1.2.3 From a3dc48e82bb146ef11cf75676c8410c1df29b0c4 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 9 Jan 2013 16:16:52 +0100 Subject: ath9k: do not link receive buffers during flush On AR9300 the rx FIFO needs to be empty during reset to ensure that no further DMA activity is generated, otherwise it might lead to memory corruption issues. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/recv.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index d4df98a938bf..01c3ba47a5b9 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -744,6 +744,7 @@ static struct ath_buf *ath_get_next_rx_buf(struct ath_softc *sc, return NULL; } + list_del(&bf->list); if (!bf->bf_mpdu) return bf; @@ -1254,14 +1255,15 @@ requeue_drop_frag: sc->rx.frag = NULL; } requeue: + list_add_tail(&bf->list, &sc->rx.rxbuf); + if (flush) + continue; + if (edma) { - list_add_tail(&bf->list, &sc->rx.rxbuf); ath_rx_edma_buf_link(sc, qtype); } else { - list_move_tail(&bf->list, &sc->rx.rxbuf); ath_rx_buf_link(sc, bf); - if (!flush) - ath9k_hw_rxena(ah); + ath9k_hw_rxena(ah); } } while (1); -- cgit v1.2.3 From 1adb2e2b5f85023d17eb4f95386a57029df27c88 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 9 Jan 2013 16:16:53 +0100 Subject: ath9k: fix double-free bug on beacon generate failure When the next beacon is sent, the ath_buf from the previous run is reused. If getting a new beacon from mac80211 fails, bf->bf_mpdu is not reset, yet the skb is freed, leading to a double-free on the next beacon tx attempt, resulting in a system crash. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/beacon.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 531fffd801a3..4eb269d6b974 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -147,6 +147,7 @@ static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw, skb->len, DMA_TO_DEVICE); dev_kfree_skb_any(skb); bf->bf_buf_addr = 0; + bf->bf_mpdu = NULL; } skb = ieee80211_beacon_get(hw, vif); -- cgit v1.2.3 From 3adcf20afb585993ffee24de36d1975f6b26b120 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 9 Jan 2013 16:16:54 +0100 Subject: ath9k: remove the WARN_ON that triggers if generating a beacon fails During teardown, mac80211 will not return a new beacon. This is normal and handled properly in the driver, so there's no need to spam the user with a kernel warning here. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/beacon.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 4eb269d6b974..2ca355e94da6 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -360,7 +360,6 @@ void ath9k_beacon_tasklet(unsigned long data) return; bf = ath9k_beacon_generate(sc->hw, vif); - WARN_ON(!bf); if (sc->beacon.bmisscnt != 0) { ath_dbg(common, BSTUCK, "resume beacon xmit after %u misses\n", -- cgit v1.2.3 From 7fc00a3054b70b1794c2d64db703eb467ad0365c Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 9 Jan 2013 16:16:55 +0100 Subject: ath9k: add a better fix for the rx tasklet vs rx flush race Ensure that the rx tasklet is no longer running when entering the reset path. Also remove the distinction between flush and no-flush frame processing. If a frame has been received and ACKed by the hardware, the stack needs to see it, so that the BA receive window does not go out of sync. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 - drivers/net/wireless/ath/ath9k/debug.c | 1 - drivers/net/wireless/ath/ath9k/debug.h | 2 -- drivers/net/wireless/ath/ath9k/main.c | 4 ++++ drivers/net/wireless/ath/ath9k/recv.c | 15 --------------- 5 files changed, 4 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 86e26a19efda..7335e9ef0249 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -646,7 +646,6 @@ void ath_ant_comb_update(struct ath_softc *sc); enum sc_op_flags { SC_OP_INVALID, SC_OP_BEACONS, - SC_OP_RXFLUSH, SC_OP_ANI_RUN, SC_OP_PRIM_STA_VIF, SC_OP_HW_RESET, diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 13ff9edc2401..e585fc827c50 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -861,7 +861,6 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf, RXS_ERR("RX-LENGTH-ERR", rx_len_err); RXS_ERR("RX-OOM-ERR", rx_oom_err); RXS_ERR("RX-RATE-ERR", rx_rate_err); - RXS_ERR("RX-DROP-RXFLUSH", rx_drop_rxflush); RXS_ERR("RX-TOO-MANY-FRAGS", rx_too_many_frags_err); PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN); diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h index 375c3b46411e..6df2ab62dcb7 100644 --- a/drivers/net/wireless/ath/ath9k/debug.h +++ b/drivers/net/wireless/ath/ath9k/debug.h @@ -216,7 +216,6 @@ struct ath_tx_stats { * @rx_oom_err: No. of frames dropped due to OOM issues. * @rx_rate_err: No. of frames dropped due to rate errors. * @rx_too_many_frags_err: Frames dropped due to too-many-frags received. - * @rx_drop_rxflush: No. of frames dropped due to RX-FLUSH. * @rx_beacons: No. of beacons received. * @rx_frags: No. of rx-fragements received. */ @@ -235,7 +234,6 @@ struct ath_rx_stats { u32 rx_oom_err; u32 rx_rate_err; u32 rx_too_many_frags_err; - u32 rx_drop_rxflush; u32 rx_beacons; u32 rx_frags; }; diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index be30a9af1528..d3cf01ec2d15 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -196,6 +196,8 @@ static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush) ath9k_debug_samp_bb_mac(sc); ath9k_hw_disable_interrupts(ah); + tasklet_disable(&sc->intr_tq); + if (!ath_stoprecv(sc)) ret = false; @@ -210,6 +212,8 @@ static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush) ath_flushrecv(sc); } + tasklet_enable(&sc->intr_tq); + return ret; } diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 01c3ba47a5b9..6b83b3bbfe8c 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -286,7 +286,6 @@ int ath_rx_init(struct ath_softc *sc, int nbufs) spin_lock_init(&sc->sc_pcu_lock); spin_lock_init(&sc->rx.rxbuflock); - clear_bit(SC_OP_RXFLUSH, &sc->sc_flags); common->rx_bufsize = IEEE80211_MAX_MPDU_LEN / 2 + sc->sc_ah->caps.rx_status_len; @@ -501,11 +500,9 @@ bool ath_stoprecv(struct ath_softc *sc) void ath_flushrecv(struct ath_softc *sc) { - set_bit(SC_OP_RXFLUSH, &sc->sc_flags); if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) ath_rx_tasklet(sc, 1, true); ath_rx_tasklet(sc, 1, false); - clear_bit(SC_OP_RXFLUSH, &sc->sc_flags); } static bool ath_beacon_dtim_pending_cab(struct sk_buff *skb) @@ -1067,9 +1064,6 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) do { bool decrypt_error = false; - /* If handling rx interrupt and flush is in progress => exit */ - if (test_bit(SC_OP_RXFLUSH, &sc->sc_flags) && (flush == 0)) - break; memset(&rs, 0, sizeof(rs)); if (edma) @@ -1112,15 +1106,6 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) ath_debug_stat_rx(sc, &rs); - /* - * If we're asked to flush receive queue, directly - * chain it back at the queue without processing it. - */ - if (test_bit(SC_OP_RXFLUSH, &sc->sc_flags)) { - RX_STAT_INC(rx_drop_rxflush); - goto requeue_drop_frag; - } - memset(rxs, 0, sizeof(struct ieee80211_rx_status)); rxs->mactime = (tsf & ~0xffffffffULL) | rs.rs_tstamp; -- cgit v1.2.3 From 4b883f021b9ccf2df3d14425e6e610281fb6a35e Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 9 Jan 2013 16:16:56 +0100 Subject: ath9k: fix rx flush handling Right now the rx flush is not doing anything useful on AR9003+, as it only works if the buffers in the rx FIFO have not been purged yet, as is done by ath_stoprecv. To fix this, always call ath_flushrecv from within ath_stoprecv before the FIFO is emptied, but still after the hw receive path has been stopped. This ensures that frames received (and ACKed by the hardware) shortly before a reset will be seen by the software, which should improve A-MPDU session stability. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 - drivers/net/wireless/ath/ath9k/main.c | 16 +++------------- drivers/net/wireless/ath/ath9k/recv.c | 16 +++++++++------- 3 files changed, 12 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 7335e9ef0249..32b2d5cd9a5a 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -328,7 +328,6 @@ struct ath_rx { int ath_startrecv(struct ath_softc *sc); bool ath_stoprecv(struct ath_softc *sc); -void ath_flushrecv(struct ath_softc *sc); u32 ath_calcrxfilter(struct ath_softc *sc); int ath_rx_init(struct ath_softc *sc, int nbufs); void ath_rx_cleanup(struct ath_softc *sc); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index d3cf01ec2d15..9844b758f81d 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -182,7 +182,7 @@ static void ath_restart_work(struct ath_softc *sc) ath_start_ani(sc); } -static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush) +static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx) { struct ath_hw *ah = sc->sc_ah; bool ret = true; @@ -204,14 +204,6 @@ static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush) if (!ath_drain_all_txq(sc, retry_tx)) ret = false; - if (!flush) { - if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) - ath_rx_tasklet(sc, 1, true); - ath_rx_tasklet(sc, 1, false); - } else { - ath_flushrecv(sc); - } - tasklet_enable(&sc->intr_tq); return ret; @@ -266,7 +258,6 @@ static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan, struct ath_common *common = ath9k_hw_common(ah); struct ath9k_hw_cal_data *caldata = NULL; bool fastcc = true; - bool flush = false; int r; __ath_cancel_work(sc); @@ -280,11 +271,10 @@ static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan, if (!hchan) { fastcc = false; - flush = true; hchan = ah->curchan; } - if (!ath_prepare_reset(sc, retry_tx, flush)) + if (!ath_prepare_reset(sc, retry_tx)) fastcc = false; ath_dbg(common, CONFIG, "Reset to %u MHz, HT40: %d fastcc: %d\n", @@ -808,7 +798,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) ath9k_hw_cfg_gpio_input(ah, ah->led_pin); } - ath_prepare_reset(sc, false, true); + ath_prepare_reset(sc, false); if (sc->rx.frag) { dev_kfree_skb_any(sc->rx.frag); diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 6b83b3bbfe8c..67f58d4bb10e 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -472,6 +472,13 @@ start_recv: return 0; } +static void ath_flushrecv(struct ath_softc *sc) +{ + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) + ath_rx_tasklet(sc, 1, true); + ath_rx_tasklet(sc, 1, false); +} + bool ath_stoprecv(struct ath_softc *sc) { struct ath_hw *ah = sc->sc_ah; @@ -482,6 +489,8 @@ bool ath_stoprecv(struct ath_softc *sc) ath9k_hw_setrxfilter(ah, 0); stopped = ath9k_hw_stopdmarecv(ah, &reset); + ath_flushrecv(sc); + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) ath_edma_stop_recv(sc); else @@ -498,13 +507,6 @@ bool ath_stoprecv(struct ath_softc *sc) return stopped && !reset; } -void ath_flushrecv(struct ath_softc *sc) -{ - if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) - ath_rx_tasklet(sc, 1, true); - ath_rx_tasklet(sc, 1, false); -} - static bool ath_beacon_dtim_pending_cab(struct sk_buff *skb) { /* Check whether the Beacon frame has DTIM indicating buffered bc/mc */ -- cgit v1.2.3 From a1fe52801a992e590cdaee2fb47a94bac9b5da90 Mon Sep 17 00:00:00 2001 From: Piotr Haber Date: Thu, 10 Jan 2013 11:20:48 +0100 Subject: brcmsmac: increase timer reference count for new timers only On hardware reintialization reference count of already existing timers would be increased again. This leads to problems on module unloading. Cc: stable@vger.kernel.org Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Hante Meuleman Reviewed-by: Arend van Spriel Signed-off-by: Piotr Haber Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c index 1fbd8ecbe2ea..0f71d1d4339d 100644 --- a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c +++ b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c @@ -1407,9 +1407,10 @@ void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic) #endif t->ms = ms; t->periodic = (bool) periodic; - t->set = true; - - atomic_inc(&t->wl->callbacks); + if (!t->set) { + t->set = true; + atomic_inc(&t->wl->callbacks); + } ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms)); } -- cgit v1.2.3 From 463e3ed3eacc8f47866e5d612bd8ee0bcee5e2f0 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 14 Jan 2013 10:50:15 +0100 Subject: ath9k: remove sc->rx.rxbuflock to fix a deadlock The commit "ath9k: fix rx flush handling" added a deadlock that happens because ath_rx_tasklet is called in a section that has already taken the rx buffer lock. It seems that the only purpose of the rxbuflock was a band-aid fix to the reset vs rx tasklet race, which has been properly fixed in the commit "ath9k: add a better fix for the rx tasklet vs rx flush race". Now that the fix is in, we can safely remove the lock to avoid such issues. Cc: stable@vger.kernel.org Reported-by: Sujith Manoharan Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 - drivers/net/wireless/ath/ath9k/recv.c | 13 ------------- 2 files changed, 14 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 32b2d5cd9a5a..42794c546a40 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -317,7 +317,6 @@ struct ath_rx { u32 *rxlink; u32 num_pkts; unsigned int rxfilter; - spinlock_t rxbuflock; struct list_head rxbuf; struct ath_descdma rxdma; struct ath_buf *rx_bufptr; diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 67f58d4bb10e..90752f246970 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -254,8 +254,6 @@ rx_init_fail: static void ath_edma_start_recv(struct ath_softc *sc) { - spin_lock_bh(&sc->rx.rxbuflock); - ath9k_hw_rxena(sc->sc_ah); ath_rx_addbuffer_edma(sc, ATH9K_RX_QUEUE_HP, @@ -267,8 +265,6 @@ static void ath_edma_start_recv(struct ath_softc *sc) ath_opmode_init(sc); ath9k_hw_startpcureceive(sc->sc_ah, !!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)); - - spin_unlock_bh(&sc->rx.rxbuflock); } static void ath_edma_stop_recv(struct ath_softc *sc) @@ -285,7 +281,6 @@ int ath_rx_init(struct ath_softc *sc, int nbufs) int error = 0; spin_lock_init(&sc->sc_pcu_lock); - spin_lock_init(&sc->rx.rxbuflock); common->rx_bufsize = IEEE80211_MAX_MPDU_LEN / 2 + sc->sc_ah->caps.rx_status_len; @@ -446,7 +441,6 @@ int ath_startrecv(struct ath_softc *sc) return 0; } - spin_lock_bh(&sc->rx.rxbuflock); if (list_empty(&sc->rx.rxbuf)) goto start_recv; @@ -467,8 +461,6 @@ start_recv: ath_opmode_init(sc); ath9k_hw_startpcureceive(ah, !!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)); - spin_unlock_bh(&sc->rx.rxbuflock); - return 0; } @@ -484,7 +476,6 @@ bool ath_stoprecv(struct ath_softc *sc) struct ath_hw *ah = sc->sc_ah; bool stopped, reset = false; - spin_lock_bh(&sc->rx.rxbuflock); ath9k_hw_abortpcurecv(ah); ath9k_hw_setrxfilter(ah, 0); stopped = ath9k_hw_stopdmarecv(ah, &reset); @@ -495,7 +486,6 @@ bool ath_stoprecv(struct ath_softc *sc) ath_edma_stop_recv(sc); else sc->rx.rxlink = NULL; - spin_unlock_bh(&sc->rx.rxbuflock); if (!(ah->ah_flags & AH_UNPLUGGED) && unlikely(!stopped)) { @@ -1059,7 +1049,6 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) dma_type = DMA_FROM_DEVICE; qtype = hp ? ATH9K_RX_QUEUE_HP : ATH9K_RX_QUEUE_LP; - spin_lock_bh(&sc->rx.rxbuflock); tsf = ath9k_hw_gettsf64(ah); tsf_lower = tsf & 0xffffffff; @@ -1254,8 +1243,6 @@ requeue: } } while (1); - spin_unlock_bh(&sc->rx.rxbuflock); - if (!(ah->imask & ATH9K_INT_RXEOL)) { ah->imask |= (ATH9K_INT_RXEOL | ATH9K_INT_RXORN); ath9k_hw_set_interrupts(ah); -- cgit v1.2.3 From 4668cce527acb3bd048c5e6c99b157a14b214671 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 14 Jan 2013 16:56:46 +0100 Subject: ath9k: disable the tasklet before taking the PCU lock Fixes a reported CPU soft lockup where the tasklet tries to acquire the lock and blocks while ath_prepare_reset (holding the lock) waits for it to complete. Cc: stable@vger.kernel.org Reported-by: Robert Shade Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 9844b758f81d..3796e65c26f1 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -196,16 +196,12 @@ static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx) ath9k_debug_samp_bb_mac(sc); ath9k_hw_disable_interrupts(ah); - tasklet_disable(&sc->intr_tq); - if (!ath_stoprecv(sc)) ret = false; if (!ath_drain_all_txq(sc, retry_tx)) ret = false; - tasklet_enable(&sc->intr_tq); - return ret; } @@ -262,6 +258,7 @@ static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan, __ath_cancel_work(sc); + tasklet_disable(&sc->intr_tq); spin_lock_bh(&sc->sc_pcu_lock); if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) { @@ -296,6 +293,8 @@ static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan, out: spin_unlock_bh(&sc->sc_pcu_lock); + tasklet_enable(&sc->intr_tq); + return r; } -- cgit v1.2.3 From 5dbbaf2de89613d19a9286d4db0a535ca2735d26 Mon Sep 17 00:00:00 2001 From: Paul Moore Date: Mon, 14 Jan 2013 07:12:19 +0000 Subject: tun: fix LSM/SELinux labeling of tun/tap devices This patch corrects some problems with LSM/SELinux that were introduced with the multiqueue patchset. The problem stems from the fact that the multiqueue work changed the relationship between the tun device and its associated socket; before the socket persisted for the life of the device, however after the multiqueue changes the socket only persisted for the life of the userspace connection (fd open). For non-persistent devices this is not an issue, but for persistent devices this can cause the tun device to lose its SELinux label. We correct this problem by adding an opaque LSM security blob to the tun device struct which allows us to have the LSM security state, e.g. SELinux labeling information, persist for the lifetime of the tun device. In the process we tweak the LSM hooks to work with this new approach to TUN device/socket labeling and introduce a new LSM hook, security_tun_dev_attach_queue(), to approve requests to attach to a TUN queue via TUNSETQUEUE. The SELinux code has been adjusted to match the new LSM hooks, the other LSMs do not make use of the LSM TUN controls. This patch makes use of the recently added "tun_socket:attach_queue" permission to restrict access to the TUNSETQUEUE operation. On older SELinux policies which do not define the "tun_socket:attach_queue" permission the access control decision for TUNSETQUEUE will be handled according to the SELinux policy's unknown permission setting. Signed-off-by: Paul Moore Acked-by: Eric Paris Tested-by: Jason Wang Signed-off-by: David S. Miller --- drivers/net/tun.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/tun.c b/drivers/net/tun.c index af372d0957fe..c81680dc10eb 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -185,6 +185,7 @@ struct tun_struct { unsigned long ageing_time; unsigned int numdisabled; struct list_head disabled; + void *security; }; static inline u32 tun_hashfn(u32 rxhash) @@ -490,6 +491,10 @@ static int tun_attach(struct tun_struct *tun, struct file *file) struct tun_file *tfile = file->private_data; int err; + err = security_tun_dev_attach(tfile->socket.sk, tun->security); + if (err < 0) + goto out; + err = -EINVAL; if (rtnl_dereference(tfile->tun)) goto out; @@ -1373,6 +1378,7 @@ static void tun_free_netdev(struct net_device *dev) BUG_ON(!(list_empty(&tun->disabled))); tun_flow_uninit(tun); + security_tun_dev_free_security(tun->security); free_netdev(dev); } @@ -1562,7 +1568,7 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) if (tun_not_capable(tun)) return -EPERM; - err = security_tun_dev_attach(tfile->socket.sk); + err = security_tun_dev_open(tun->security); if (err < 0) return err; @@ -1619,7 +1625,9 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) spin_lock_init(&tun->lock); - security_tun_dev_post_create(&tfile->sk); + err = security_tun_dev_alloc_security(&tun->security); + if (err < 0) + goto err_free_dev; tun_net_init(dev); @@ -1789,10 +1797,14 @@ static int tun_set_queue(struct file *file, struct ifreq *ifr) if (ifr->ifr_flags & IFF_ATTACH_QUEUE) { tun = tfile->detached; - if (!tun) + if (!tun) { ret = -EINVAL; - else - ret = tun_attach(tun, file); + goto unlock; + } + ret = security_tun_dev_attach_queue(tun->security); + if (ret < 0) + goto unlock; + ret = tun_attach(tun, file); } else if (ifr->ifr_flags & IFF_DETACH_QUEUE) { tun = rtnl_dereference(tfile->tun); if (!tun || !(tun->flags & TUN_TAP_MQ)) @@ -1802,6 +1814,7 @@ static int tun_set_queue(struct file *file, struct ifreq *ifr) } else ret = -EINVAL; +unlock: rtnl_unlock(); return ret; } -- cgit v1.2.3 From 9c13cb8bb477a83b9a3c9e5a5478a4e21294a760 Mon Sep 17 00:00:00 2001 From: Nithin Nayak Sujir Date: Mon, 14 Jan 2013 17:10:59 +0000 Subject: tg3: Avoid null pointer dereference in tg3_interrupt in netconsole mode When netconsole is enabled, logging messages generated during tg3_open can result in a null pointer dereference for the uninitialized tg3 status block. Use the irq_sync flag to disable polling in the early stages. irq_sync is cleared when the driver is enabling interrupts after all initialization is completed. Signed-off-by: Nithin Nayak Sujir Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 78ea90c40e19..d326d9219aa8 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -6950,6 +6950,9 @@ static void tg3_poll_controller(struct net_device *dev) int i; struct tg3 *tp = netdev_priv(dev); + if (tg3_irq_sync(tp)) + return; + for (i = 0; i < tp->irq_cnt; i++) tg3_interrupt(tp->napi[i].irq_vec, &tp->napi[i]); } @@ -16367,6 +16370,7 @@ static int tg3_init_one(struct pci_dev *pdev, tp->pm_cap = pm_cap; tp->rx_mode = TG3_DEF_RX_MODE; tp->tx_mode = TG3_DEF_TX_MODE; + tp->irq_sync = 1; if (tg3_debug > 0) tp->msg_enable = tg3_debug; -- cgit v1.2.3 From daf3ec688e057f6060fb9bb0819feac7a8bbf45c Mon Sep 17 00:00:00 2001 From: Nithin Nayak Sujir Date: Mon, 14 Jan 2013 17:11:00 +0000 Subject: tg3: Fix crc errors on jumbo frame receive TG3_PHY_AUXCTL_SMDSP_ENABLE/DISABLE macros do a blind write to the phy auxiliary control register and overwrite the EXT_PKT_LEN (bit 14) resulting in intermittent crc errors on jumbo frames with some link partners. Change the code to do a read/modify/write. Signed-off-by: Nithin Nayak Sujir Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 58 ++++++++++++++++++++++--------------- 1 file changed, 35 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index d326d9219aa8..bdb086934cd9 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -1283,14 +1283,26 @@ static int tg3_phy_auxctl_write(struct tg3 *tp, int reg, u32 set) return tg3_writephy(tp, MII_TG3_AUX_CTRL, set | reg); } -#define TG3_PHY_AUXCTL_SMDSP_ENABLE(tp) \ - tg3_phy_auxctl_write((tp), MII_TG3_AUXCTL_SHDWSEL_AUXCTL, \ - MII_TG3_AUXCTL_ACTL_SMDSP_ENA | \ - MII_TG3_AUXCTL_ACTL_TX_6DB) +static int tg3_phy_toggle_auxctl_smdsp(struct tg3 *tp, bool enable) +{ + u32 val; + int err; + + err = tg3_phy_auxctl_read(tp, MII_TG3_AUXCTL_SHDWSEL_AUXCTL, &val); -#define TG3_PHY_AUXCTL_SMDSP_DISABLE(tp) \ - tg3_phy_auxctl_write((tp), MII_TG3_AUXCTL_SHDWSEL_AUXCTL, \ - MII_TG3_AUXCTL_ACTL_TX_6DB); + if (err) + return err; + if (enable) + + val |= MII_TG3_AUXCTL_ACTL_SMDSP_ENA; + else + val &= ~MII_TG3_AUXCTL_ACTL_SMDSP_ENA; + + err = tg3_phy_auxctl_write((tp), MII_TG3_AUXCTL_SHDWSEL_AUXCTL, + val | MII_TG3_AUXCTL_ACTL_TX_6DB); + + return err; +} static int tg3_bmcr_reset(struct tg3 *tp) { @@ -2223,7 +2235,7 @@ static void tg3_phy_apply_otp(struct tg3 *tp) otp = tp->phy_otp; - if (TG3_PHY_AUXCTL_SMDSP_ENABLE(tp)) + if (tg3_phy_toggle_auxctl_smdsp(tp, true)) return; phy = ((otp & TG3_OTP_AGCTGT_MASK) >> TG3_OTP_AGCTGT_SHIFT); @@ -2248,7 +2260,7 @@ static void tg3_phy_apply_otp(struct tg3 *tp) ((otp & TG3_OTP_RCOFF_MASK) >> TG3_OTP_RCOFF_SHIFT); tg3_phydsp_write(tp, MII_TG3_DSP_EXP97, phy); - TG3_PHY_AUXCTL_SMDSP_DISABLE(tp); + tg3_phy_toggle_auxctl_smdsp(tp, false); } static void tg3_phy_eee_adjust(struct tg3 *tp, u32 current_link_up) @@ -2284,9 +2296,9 @@ static void tg3_phy_eee_adjust(struct tg3 *tp, u32 current_link_up) if (!tp->setlpicnt) { if (current_link_up == 1 && - !TG3_PHY_AUXCTL_SMDSP_ENABLE(tp)) { + !tg3_phy_toggle_auxctl_smdsp(tp, true)) { tg3_phydsp_write(tp, MII_TG3_DSP_TAP26, 0x0000); - TG3_PHY_AUXCTL_SMDSP_DISABLE(tp); + tg3_phy_toggle_auxctl_smdsp(tp, false); } val = tr32(TG3_CPMU_EEE_MODE); @@ -2302,11 +2314,11 @@ static void tg3_phy_eee_enable(struct tg3 *tp) (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 || GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 || tg3_flag(tp, 57765_CLASS)) && - !TG3_PHY_AUXCTL_SMDSP_ENABLE(tp)) { + !tg3_phy_toggle_auxctl_smdsp(tp, true)) { val = MII_TG3_DSP_TAP26_ALNOKO | MII_TG3_DSP_TAP26_RMRXSTO; tg3_phydsp_write(tp, MII_TG3_DSP_TAP26, val); - TG3_PHY_AUXCTL_SMDSP_DISABLE(tp); + tg3_phy_toggle_auxctl_smdsp(tp, false); } val = tr32(TG3_CPMU_EEE_MODE); @@ -2450,7 +2462,7 @@ static int tg3_phy_reset_5703_4_5(struct tg3 *tp) tg3_writephy(tp, MII_CTRL1000, CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER); - err = TG3_PHY_AUXCTL_SMDSP_ENABLE(tp); + err = tg3_phy_toggle_auxctl_smdsp(tp, true); if (err) return err; @@ -2471,7 +2483,7 @@ static int tg3_phy_reset_5703_4_5(struct tg3 *tp) tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8200); tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0000); - TG3_PHY_AUXCTL_SMDSP_DISABLE(tp); + tg3_phy_toggle_auxctl_smdsp(tp, false); tg3_writephy(tp, MII_CTRL1000, phy9_orig); @@ -2572,10 +2584,10 @@ static int tg3_phy_reset(struct tg3 *tp) out: if ((tp->phy_flags & TG3_PHYFLG_ADC_BUG) && - !TG3_PHY_AUXCTL_SMDSP_ENABLE(tp)) { + !tg3_phy_toggle_auxctl_smdsp(tp, true)) { tg3_phydsp_write(tp, 0x201f, 0x2aaa); tg3_phydsp_write(tp, 0x000a, 0x0323); - TG3_PHY_AUXCTL_SMDSP_DISABLE(tp); + tg3_phy_toggle_auxctl_smdsp(tp, false); } if (tp->phy_flags & TG3_PHYFLG_5704_A0_BUG) { @@ -2584,14 +2596,14 @@ out: } if (tp->phy_flags & TG3_PHYFLG_BER_BUG) { - if (!TG3_PHY_AUXCTL_SMDSP_ENABLE(tp)) { + if (!tg3_phy_toggle_auxctl_smdsp(tp, true)) { tg3_phydsp_write(tp, 0x000a, 0x310b); tg3_phydsp_write(tp, 0x201f, 0x9506); tg3_phydsp_write(tp, 0x401f, 0x14e2); - TG3_PHY_AUXCTL_SMDSP_DISABLE(tp); + tg3_phy_toggle_auxctl_smdsp(tp, false); } } else if (tp->phy_flags & TG3_PHYFLG_JITTER_BUG) { - if (!TG3_PHY_AUXCTL_SMDSP_ENABLE(tp)) { + if (!tg3_phy_toggle_auxctl_smdsp(tp, true)) { tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a); if (tp->phy_flags & TG3_PHYFLG_ADJUST_TRIM) { tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x110b); @@ -2600,7 +2612,7 @@ out: } else tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x010b); - TG3_PHY_AUXCTL_SMDSP_DISABLE(tp); + tg3_phy_toggle_auxctl_smdsp(tp, false); } } @@ -4009,7 +4021,7 @@ static int tg3_phy_autoneg_cfg(struct tg3 *tp, u32 advertise, u32 flowctrl) tw32(TG3_CPMU_EEE_MODE, tr32(TG3_CPMU_EEE_MODE) & ~TG3_CPMU_EEEMD_LPI_ENABLE); - err = TG3_PHY_AUXCTL_SMDSP_ENABLE(tp); + err = tg3_phy_toggle_auxctl_smdsp(tp, true); if (!err) { u32 err2; @@ -4042,7 +4054,7 @@ static int tg3_phy_autoneg_cfg(struct tg3 *tp, u32 advertise, u32 flowctrl) MII_TG3_DSP_CH34TP2_HIBW01); } - err2 = TG3_PHY_AUXCTL_SMDSP_DISABLE(tp); + err2 = tg3_phy_toggle_auxctl_smdsp(tp, false); if (!err) err = err2; } -- cgit v1.2.3 From 86833f0a57c3d5f3ed8bba465369c15c831d3909 Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Sat, 8 Dec 2012 09:04:25 +0000 Subject: ixgbe: only compile ixgbe_debugfs.o when enabled This patch modifies ixgbe_debugfs.c and the Makefile for the ixgbe driver to only compile the file when the config is enabled. This means we can remove the #ifdef inside the ixgbe_debugfs.c file. Signed-off-by: Jacob Keller Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/Makefile | 3 ++- drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c | 5 ----- 2 files changed, 2 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/intel/ixgbe/Makefile b/drivers/net/ethernet/intel/ixgbe/Makefile index f3a632bf8d96..687c83d1bdab 100644 --- a/drivers/net/ethernet/intel/ixgbe/Makefile +++ b/drivers/net/ethernet/intel/ixgbe/Makefile @@ -32,7 +32,7 @@ obj-$(CONFIG_IXGBE) += ixgbe.o -ixgbe-objs := ixgbe_main.o ixgbe_common.o ixgbe_ethtool.o ixgbe_debugfs.o\ +ixgbe-objs := ixgbe_main.o ixgbe_common.o ixgbe_ethtool.o \ ixgbe_82599.o ixgbe_82598.o ixgbe_phy.o ixgbe_sriov.o \ ixgbe_mbx.o ixgbe_x540.o ixgbe_lib.o ixgbe_ptp.o @@ -40,4 +40,5 @@ ixgbe-$(CONFIG_IXGBE_DCB) += ixgbe_dcb.o ixgbe_dcb_82598.o \ ixgbe_dcb_82599.o ixgbe_dcb_nl.o ixgbe-$(CONFIG_IXGBE_HWMON) += ixgbe_sysfs.o +ixgbe-$(CONFIG_DEBUG_FS) += ixgbe_debugfs.o ixgbe-$(CONFIG_FCOE:m=y) += ixgbe_fcoe.o diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c index 50aa546b8c7a..3504686d3af5 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c @@ -24,9 +24,6 @@ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 *******************************************************************************/ - -#ifdef CONFIG_DEBUG_FS - #include #include @@ -277,5 +274,3 @@ void ixgbe_dbg_exit(void) { debugfs_remove_recursive(ixgbe_dbg_root); } - -#endif /* CONFIG_DEBUG_FS */ -- cgit v1.2.3 From 20fc4c42b2bed2dffc8e51f24645603f05b2bcef Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Wed, 5 Dec 2012 07:53:38 +0000 Subject: ixgbe: Fix overwriting of rx_mtrl in ixgbe_ptp_hwtstamp_ioctl This patch corrects a bug introduced by commit f3444d8b. The rxmtrl value for the UDP port to timestamp on was moved above the switch statement, but was overwritten to 0 if the ioctl selected one of the V1 filters. Signed-off-by: Jacob Keller Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c index 1a751c9d09c4..bb9256a1b0a9 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c @@ -660,11 +660,11 @@ int ixgbe_ptp_hwtstamp_ioctl(struct ixgbe_adapter *adapter, break; case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: tsync_rx_ctl |= IXGBE_TSYNCRXCTL_TYPE_L4_V1; - tsync_rx_mtrl = IXGBE_RXMTRL_V1_SYNC_MSG; + tsync_rx_mtrl |= IXGBE_RXMTRL_V1_SYNC_MSG; break; case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: tsync_rx_ctl |= IXGBE_TSYNCRXCTL_TYPE_L4_V1; - tsync_rx_mtrl = IXGBE_RXMTRL_V1_DELAY_REQ_MSG; + tsync_rx_mtrl |= IXGBE_RXMTRL_V1_DELAY_REQ_MSG; break; case HWTSTAMP_FILTER_PTP_V2_EVENT: case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: -- cgit v1.2.3 From c3e5d7181afb66657393066bccce0956fab09ab3 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Wed, 9 Jan 2013 10:20:36 +0200 Subject: iwlwifi: audit single frames from AGG queue in RS The rate scaling won't treat the information in a frame with IEEE80211_TX_CTL_AMPDU set if IEEE80211_TX_STAT_AMPDU is cleared. But all the frames coming from an AGG tx queue have IEEE80211_TX_CTL_AMPDU set, and IEEE80211_TX_STAT_AMPDU is set only if the frame was sent in an AMPDU. This means that all the data in frames in AGG tx queues that aren't sent as an AMPDU is thrown away. This is even more harmful when in bad link conditions, the frames are sent in an AMPDU and then finally sent as single frame. So a lot of failures weren't reported and the rate scaling got stuck in high rates leading to very poor connectivity. Fix that by clearing IEEE80211_TX_CTL_AMPDU when the frame isn't part of an AMPDU. This bug was introduced by 2eb81a40aa521035ff9c8c8309e482dff523f8c9 iwlwifi: don't clear CTL_AMPDU on frame status This fix basically reverts the aforementioned commit. Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg --- drivers/net/wireless/iwlwifi/dvm/tx.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c index a790599fe2c2..31534f7c0548 100644 --- a/drivers/net/wireless/iwlwifi/dvm/tx.c +++ b/drivers/net/wireless/iwlwifi/dvm/tx.c @@ -1079,6 +1079,8 @@ static void iwlagn_set_tx_status(struct iwl_priv *priv, { u16 status = le16_to_cpu(tx_resp->status.status); + info->flags &= ~IEEE80211_TX_CTL_AMPDU; + info->status.rates[0].count = tx_resp->failure_frame + 1; info->flags |= iwl_tx_status_to_mac80211(status); iwlagn_hwrate_to_tx_control(priv, le32_to_cpu(tx_resp->rate_n_flags), -- cgit v1.2.3 From d4fc9dc200acc339370e22a0578725e8fb45da0d Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Tue, 15 Jan 2013 05:15:10 +0000 Subject: cxgb4: set coalesce parameters on all queues The coalesce parameters was set only on the first queue, which caused interrupt rates to be larger on all the other queues. This patch allows interrupt rates to be reduced for certain workloads and colaesce parameters by 41%. Signed-off-by: Thadeu Lima de Souza Cascardo Cc: steved@us.ibm.com Cc: toml@us.ibm.com Signed-off-by: David S. Miller --- drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index f0718e1a8369..c306df7d4568 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -1994,9 +1994,20 @@ static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c) { const struct port_info *pi = netdev_priv(dev); struct adapter *adap = pi->adapter; - - return set_rxq_intr_params(adap, &adap->sge.ethrxq[pi->first_qset].rspq, - c->rx_coalesce_usecs, c->rx_max_coalesced_frames); + struct sge_rspq *q; + int i; + int r = 0; + + for (i = pi->first_qset; i < pi->first_qset + pi->nqsets; i++) { + q = &adap->sge.ethrxq[i].rspq; + r = set_rxq_intr_params(adap, q, c->rx_coalesce_usecs, + c->rx_max_coalesced_frames); + if (r) { + dev_err(&dev->dev, "failed to set coalesce %d\n", r); + break; + } + } + return r; } static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c) -- cgit v1.2.3 From 1b9c3a1bfbf17b5713bf7e6d74254e0c879ac4a0 Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Mon, 14 Jan 2013 19:39:01 +0000 Subject: usbnet: dm9601: Fix incorrect command commit 24b1042c4eb2 ("usbnet: dm9601: apply introduced usb command APIs") removes the distiction between DM_WRITE_REG and DM_WRITE_REGS command. The distiction is reintroduced to the driver so that the functionality of the driver remains same. CC: Ming Lei Signed-off-by: Tushar Behera Signed-off-by: David S. Miller --- drivers/net/usb/dm9601.c | 22 ++++++---------------- 1 file changed, 6 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c index 3f554c1149f3..011410f39c90 100644 --- a/drivers/net/usb/dm9601.c +++ b/drivers/net/usb/dm9601.c @@ -53,7 +53,6 @@ #define DM_RX_OVERHEAD 7 /* 3 byte header + 4 byte crc tail */ #define DM_TIMEOUT 1000 - static int dm_read(struct usbnet *dev, u8 reg, u16 length, void *data) { int err; @@ -84,32 +83,23 @@ static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data) static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value) { - return usbnet_write_cmd(dev, DM_WRITE_REGS, + return usbnet_write_cmd(dev, DM_WRITE_REG, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, value, reg, NULL, 0); } -static void dm_write_async_helper(struct usbnet *dev, u8 reg, u8 value, - u16 length, void *data) +static void dm_write_async(struct usbnet *dev, u8 reg, u16 length, void *data) { usbnet_write_cmd_async(dev, DM_WRITE_REGS, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, reg, data, length); -} - -static void dm_write_async(struct usbnet *dev, u8 reg, u16 length, void *data) -{ - netdev_dbg(dev->net, "dm_write_async() reg=0x%02x length=%d\n", reg, length); - - dm_write_async_helper(dev, reg, 0, length, data); + 0, reg, data, length); } static void dm_write_reg_async(struct usbnet *dev, u8 reg, u8 value) { - netdev_dbg(dev->net, "dm_write_reg_async() reg=0x%02x value=0x%02x\n", - reg, value); - - dm_write_async_helper(dev, reg, value, 0, NULL); + usbnet_write_cmd_async(dev, DM_WRITE_REG, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, reg, NULL, 0); } static int dm_read_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 *value) -- cgit v1.2.3 From 3022551b6ae6d4750becc0a8e3391d4b79d5a038 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Mon, 14 Jan 2013 23:19:50 +0000 Subject: net: qmi_wwan: add TP-LINK HSUPA Modem MA180 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The driver description files gives these names to the vendor specific functions on this modem: Diagnostics VID_2357&PID_0201&MI_00 NMEA VID_2357&PID_0201&MI_01 Modem VID_2357&PID_0201&MI_03 Networkcard VID_2357&PID_0201&MI_04 The "Networkcard" function has been verified to support these QMI services: ctl (1.3) wds (1.3) dms (1.2) nas (1.0) Reported-by: Thomas Schäfer Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 6a1ca500e612..c4341085e5c7 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -459,6 +459,7 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x1199, 0x68a2, 19)}, /* Sierra Wireless MC7710 in QMI mode */ {QMI_FIXED_INTF(0x1199, 0x901c, 8)}, /* Sierra Wireless EM7700 */ {QMI_FIXED_INTF(0x1bbb, 0x011e, 4)}, /* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */ + {QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */ /* 4. Gobi 1000 devices */ {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ -- cgit v1.2.3 From 13b6d2e6c25dd33f94873b771ad7de3550da5125 Mon Sep 17 00:00:00 2001 From: Nickolai Zeldovich Date: Thu, 17 Jan 2013 07:18:29 +0000 Subject: 3c574_cs: fix operator precedence between << and & The code to print the FIFO size in tc574_config computes it as: 8 << config & Ram_size which evaluates the '<<' first, but the actual intent is to evaluate the '&' first. Add parentheses to enforce desired evaluation order. Signed-off-by: Nickolai Zeldovich Signed-off-by: David S. Miller --- drivers/net/ethernet/3com/3c574_cs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/3com/3c574_cs.c b/drivers/net/ethernet/3com/3c574_cs.c index 66df93638085..ffd8de28a76a 100644 --- a/drivers/net/ethernet/3com/3c574_cs.c +++ b/drivers/net/ethernet/3com/3c574_cs.c @@ -432,7 +432,7 @@ static int tc574_config(struct pcmcia_device *link) netdev_info(dev, "%s at io %#3lx, irq %d, hw_addr %pM\n", cardname, dev->base_addr, dev->irq, dev->dev_addr); netdev_info(dev, " %dK FIFO split %s Rx:Tx, %sMII interface.\n", - 8 << config & Ram_size, + 8 << (config & Ram_size), ram_split[(config & Ram_split) >> Ram_split_shift], config & Autoselect ? "autoselect " : ""); -- cgit v1.2.3 From c3745ead19ad148c57f606a0dbaee1d21214f3f7 Mon Sep 17 00:00:00 2001 From: Stef van Os Date: Thu, 17 Jan 2013 16:36:18 +0100 Subject: phy/marvell: remove fiber/copper autoselect on 88e1111 Remove the code that always enables copper/fiber autoselect, ignoring the DIS_FC strapping pin. The default value for this register is autoselect on anyway, and if you explicitly disable autoselect via strapping you probably really don't want autoselect. Signed-off-by: Stef van Os Signed-off-by: David S. Miller --- drivers/net/phy/marvell.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'drivers') diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index 5d2a3f215887..22dec9c7ef05 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -353,15 +353,6 @@ static int m88e1111_config_init(struct phy_device *phydev) int err; int temp; - /* Enable Fiber/Copper auto selection */ - temp = phy_read(phydev, MII_M1111_PHY_EXT_SR); - temp &= ~MII_M1111_HWCFG_FIBER_COPPER_AUTO; - phy_write(phydev, MII_M1111_PHY_EXT_SR, temp); - - temp = phy_read(phydev, MII_BMCR); - temp |= BMCR_RESET; - phy_write(phydev, MII_BMCR, temp); - if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) || (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) || (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) || -- cgit v1.2.3 From 01fe944f1024bd4e5c327ddbe8d657656b66af2f Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 17 Jan 2013 13:30:49 -0800 Subject: macvlan: fix macvlan_get_size() commit df8ef8f3aaa (macvlan: add FDB bridge ops and macvlan flags) forgot to update macvlan_get_size() after the addition of IFLA_MACVLAN_FLAGS Signed-off-by: Eric Dumazet Cc: John Fastabend Signed-off-by: David S. Miller --- drivers/net/macvlan.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 68a43fe602e7..d3fb97d97cbc 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -822,7 +822,10 @@ static int macvlan_changelink(struct net_device *dev, static size_t macvlan_get_size(const struct net_device *dev) { - return nla_total_size(4); + return (0 + + nla_total_size(4) /* IFLA_MACVLAN_MODE */ + + nla_total_size(2) /* IFLA_MACVLAN_FLAGS */ + ); } static int macvlan_fill_info(struct sk_buff *skb, -- cgit v1.2.3 From de5fe95587b4dcc86cc451fce2909dfa504fce10 Mon Sep 17 00:00:00 2001 From: Lingzhu Xiang Date: Sat, 5 Jan 2013 13:59:52 +0800 Subject: efivarfs: Drop link count of the right inode efivarfs_unlink() should drop the file's link count, not the directory's. Signed-off-by: Lingzhu Xiang Cc: Jeremy Kerr Tested-by: Lee, Chun-Yi Signed-off-by: Matt Fleming --- drivers/firmware/efivars.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index 7b1c37497c9a..fa9fa038de3f 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -994,7 +994,7 @@ static int efivarfs_unlink(struct inode *dir, struct dentry *dentry) list_del(&var->list); spin_unlock(&efivars->lock); efivar_unregister(var); - drop_nlink(dir); + drop_nlink(dentry->d_inode); dput(dentry); return 0; } -- cgit v1.2.3 From 1fa7e6958c5f82cc75c594e3ffaf73cc26fc94c1 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Wed, 16 Jan 2013 13:47:05 +0000 Subject: efivarfs: Never return ENOENT from firmware Files are created in efivarfs_create() before a corresponding variable is created in the firmware. This leads to users being able to read/write to the file without the variable existing in the firmware. Reading a non-existent variable currently returns -ENOENT, which is confusing because the file obviously *does* exist. Convert EFI_NOT_FOUND into -EIO which is the closest thing to "error while interacting with firmware", and should hopefully indicate to the caller that the variable is in some uninitialised state. Cc: Josh Boyer Acked-by: Jeremy Kerr Cc: Lee, Chun-Yi Cc: Andy Whitcroft Reported-by: Lingzhu Xiang Signed-off-by: Matt Fleming --- drivers/firmware/efivars.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index fa9fa038de3f..807dad48b2b1 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -674,7 +674,7 @@ static int efi_status_to_err(efi_status_t status) err = -EACCES; break; case EFI_NOT_FOUND: - err = -ENOENT; + err = -EIO; break; default: err = -EINVAL; -- cgit v1.2.3 From 791eb564d218dabe0f9a2212916fe54240b97afb Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Wed, 16 Jan 2013 21:55:36 +0000 Subject: efivarfs: Delete dentry from dcache in efivarfs_file_write() Unlike the unlink path that is called from the VFS layer, we need to call d_delete() ourselves when a variable is deleted in efivarfs_file_write(). Failure to do so means we can access a stale struct efivar_entry when reading/writing the file, which can result in the following oops, [ 59.978216] general protection fault: 0000 [#1] SMP [ 60.038660] CPU 9 [ 60.040501] Pid: 1001, comm: cat Not tainted 3.7.0-2.fc19.x86_64 #1 IBM System x3550 M3 -[7944I21]-/69Y4438 [ 60.050840] RIP: 0010:[] [] __lock_acquire+0x5e/0x1bb0 [ 60.059198] RSP: 0018:ffff880270595ce8 EFLAGS: 00010046 [ 60.064500] RAX: 0000000000000046 RBX: 0000000000000002 RCX: 0000000000000000 [ 60.071617] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 6b6b6b6b6b6b6b83 [ 60.078735] RBP: ffff880270595dd8 R08: 0000000000000002 R09: 0000000000000000 [ 60.085852] R10: 6b6b6b6b6b6b6b83 R11: 0000000000000000 R12: 0000000000000000 [ 60.092971] R13: ffff88027170cd20 R14: 0000000000000000 R15: 0000000000000000 [ 60.100091] FS: 00007fc0c8ff3740(0000) GS:ffff880277000000(0000) knlGS:0000000000000000 [ 60.108164] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.113899] CR2: 0000000001520000 CR3: 000000026d594000 CR4: 00000000000007e0 [ 60.121016] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.128135] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 60.135254] Process cat (pid: 1001, threadinfo ffff880270594000, task ffff88027170cd20) [ 60.143239] Stack: [ 60.145251] ffff880270595cf8 ffffffff81021da3 ffff880270595d08 ffffffff81021e19 [ 60.152714] ffff880270595d38 ffffffff810acdb5 ffff880200000168 0000000000000086 [ 60.160175] ffff88027170d5e8 ffffffff810d25ed ffff880270595d58 ffffffff810ace7f [ 60.167638] Call Trace: [ 60.170088] [] ? native_sched_clock+0x13/0x80 [ 60.176085] [] ? sched_clock+0x9/0x10 [ 60.181389] [] ? sched_clock_cpu+0xc5/0x120 [ 60.187211] [] ? trace_hardirqs_off+0xd/0x10 [ 60.193121] [] ? local_clock+0x6f/0x80 [ 60.198513] [] ? lock_release_holdtime.part.26+0xf/0x180 [ 60.205465] [] ? lock_release_non_nested+0x2e7/0x320 [ 60.212073] [] ? efivarfs_file_write+0x5b/0x280 [ 60.218242] [] lock_acquire+0xa1/0x1f0 [ 60.223633] [] ? efivarfs_file_write+0x111/0x280 [ 60.229892] [] ? might_fault+0x5c/0xb0 [ 60.235287] [] _raw_spin_lock+0x46/0x80 [ 60.240762] [] ? efivarfs_file_write+0x111/0x280 [ 60.247018] [] efivarfs_file_write+0x111/0x280 [ 60.253103] [] vfs_write+0xaf/0x190 [ 60.258233] [] sys_write+0x55/0xa0 [ 60.263278] [] system_call_fastpath+0x16/0x1b [ 60.269271] Code: 41 0f 45 d8 4c 89 75 f0 4c 89 7d f8 85 c0 0f 84 09 01 00 00 8b 05 a3 f9 ff 00 49 89 fa 41 89 f6 41 89 d3 85 c0 0f 84 12 01 00 00 <49> 8b 02 ba 01 00 00 00 48 3d a0 07 14 82 0f 44 da 41 83 fe 01 [ 60.289431] RIP [] __lock_acquire+0x5e/0x1bb0 [ 60.295444] RSP [ 60.298928] ---[ end trace 1bbfd41a2cf6a0d8 ]--- Cc: Josh Boyer Acked-by: Jeremy Kerr Cc: Lee, Chun-Yi Cc: Andy Whitcroft Reported-by: Lingzhu Xiang Signed-off-by: Matt Fleming --- drivers/firmware/efivars.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index 807dad48b2b1..2ed59dc1c48a 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -793,6 +793,7 @@ static ssize_t efivarfs_file_write(struct file *file, spin_unlock(&efivars->lock); efivar_unregister(var); drop_nlink(inode); + d_delete(file->f_dentry); dput(file->f_dentry); } else { -- cgit v1.2.3 From f9925b5f681d16a831210f00daedf8e9105073f4 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Thu, 27 Dec 2012 10:13:24 -0800 Subject: pinctrl: samsung: removing duplicated condition for PINCTRL_SAMSUNG Now, PINCTRL_SAMSUNG should be enabled with PINCTRL_EXYNOS so we don't need to add 'depends on' condition already added in PINCTRL_EXYNOS. Cc: Thomas Abraham Signed-off-by: Kukjin Kim Signed-off-by: Linus Walleij --- drivers/pinctrl/Kconfig | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index c31aeb01bb00..efaecefe3f8c 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -181,7 +181,6 @@ config PINCTRL_COH901 config PINCTRL_SAMSUNG bool - depends on OF && GPIOLIB select PINMUX select PINCONF -- cgit v1.2.3 From d6fb3be544b46a7611a3373fcaa62b5b0be01888 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Wed, 16 Jan 2013 13:36:37 +0000 Subject: net: calxedaxgmac: throw away overrun frames The xgmac driver assumes 1 frame per descriptor. If a frame larger than the descriptor's buffer size is received, the frame will spill over into the next descriptor. So check for received frames that span more than one descriptor and discard them. This prevents a crash if we receive erroneous large packets. Signed-off-by: Rob Herring Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller --- drivers/net/ethernet/calxeda/xgmac.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c index b407043ce9b0..f7f02900f650 100644 --- a/drivers/net/ethernet/calxeda/xgmac.c +++ b/drivers/net/ethernet/calxeda/xgmac.c @@ -548,6 +548,10 @@ static int desc_get_rx_status(struct xgmac_priv *priv, struct xgmac_dma_desc *p) return -1; } + /* All frames should fit into a single buffer */ + if (!(status & RXDESC_FIRST_SEG) || !(status & RXDESC_LAST_SEG)) + return -1; + /* Check if packet has checksum already */ if ((status & RXDESC_FRAME_TYPE) && (status & RXDESC_EXT_STATUS) && !(ext_status & RXDESC_IP_PAYLOAD_MASK)) -- cgit v1.2.3 From 213815a1e6ae70b9648483b110bc5081795f99e8 Mon Sep 17 00:00:00 2001 From: Yan Burman Date: Thu, 17 Jan 2013 05:30:42 +0000 Subject: net/mlx4_en: Fix bridged vSwitch configuration for non SRIOV mode Commit 5b4c4d36860e "mlx4_en: Allow communication between functions on same host" introduced a regression under which a bridge acting as vSwitch whose uplink is an mlx4 Ethernet device become non-operative in native (non sriov) mode. This happens since broadcast ARP requests sent by VMs were loopback-ed by the HW and hence the bridge learned VM source MACs on both the VM and the uplink ports. The fix is to place the DMAC in the send WQE only under SRIOV/eSwitch configuration or when the device is in selftest. Reviewed-by: Or Gerlitz Signed-off-by: Yan Burman Signed-off-by: Amir Vadai Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_tx.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c index 2b799f4f1c37..6771b69f40d5 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c @@ -630,10 +630,15 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) ring->tx_csum++; } - /* Copy dst mac address to wqe */ - ethh = (struct ethhdr *)skb->data; - tx_desc->ctrl.srcrb_flags16[0] = get_unaligned((__be16 *)ethh->h_dest); - tx_desc->ctrl.imm = get_unaligned((__be32 *)(ethh->h_dest + 2)); + if (mlx4_is_mfunc(mdev->dev) || priv->validate_loopback) { + /* Copy dst mac address to wqe. This allows loopback in eSwitch, + * so that VFs and PF can communicate with each other + */ + ethh = (struct ethhdr *)skb->data; + tx_desc->ctrl.srcrb_flags16[0] = get_unaligned((__be16 *)ethh->h_dest); + tx_desc->ctrl.imm = get_unaligned((__be32 *)(ethh->h_dest + 2)); + } + /* Handle LSO (TSO) packets */ if (lso_header_size) { /* Mark opcode as LSO */ -- cgit v1.2.3 From ca4c7b35f75492de7fbf5ee95be07481c348caee Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Thu, 17 Jan 2013 05:30:43 +0000 Subject: net/mlx4_core: Set number of msix vectors under SRIOV mode to firmware defaults The lines if (mlx4_is_mfunc(dev)) { nreq = 2; } else { which hard code the number of requested msi-x vectors under multi-function mode to two can be removed completely, since the firmware sets num_eqs and reserved_eqs appropriately Thus, the code line: nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs, nreq); is by itself sufficient and correct for all cases. Currently, for mfunc mode num_eqs = 32 and reserved_eqs = 28, hence four vectors will be enabled. This triples (one vector is used for the async events and commands EQ) the horse power provided for processing of incoming packets on netdev RSS scheme, IO initiators/targets commands processing flows, etc. Reviewed-by: Jack Morgenstein Signed-off-by: Amir Vadai Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/main.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index e1bafffbc3b1..a6542d75374c 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1790,15 +1790,8 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev) int i; if (msi_x) { - /* In multifunction mode each function gets 2 msi-X vectors - * one for data path completions anf the other for asynch events - * or command completions */ - if (mlx4_is_mfunc(dev)) { - nreq = 2; - } else { - nreq = min_t(int, dev->caps.num_eqs - - dev->caps.reserved_eqs, nreq); - } + nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs, + nreq); entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL); if (!entries) -- cgit v1.2.3 From 4b090d8dffd2a036f894c3fa6da3c5cc0e20536c Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 7 Jan 2013 22:53:49 -0200 Subject: pinctrl: pinctrl-mxs: Fix variables' definition type Fix the following warnings when building with W=1 option: drivers/pinctrl/pinctrl-mxs.c: In function 'mxs_dt_free_map': drivers/pinctrl/pinctrl-mxs.c:151:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] drivers/pinctrl/pinctrl-mxs.c: In function 'mxs_pinctrl_enable': drivers/pinctrl/pinctrl-mxs.c:208:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] drivers/pinctrl/pinctrl-mxs.c: In function 'mxs_pinconf_group_set': drivers/pinctrl/pinctrl-mxs.c:265:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] drivers/pinctrl/pinctrl-mxs.c: In function 'mxs_pinctrl_parse_group': drivers/pinctrl/pinctrl-mxs.c:376:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] Signed-off-by: Fabio Estevam Acked-by: Shawn Guo Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-mxs.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-mxs.c b/drivers/pinctrl/pinctrl-mxs.c index dd227d21dcf2..23af9f1f9c35 100644 --- a/drivers/pinctrl/pinctrl-mxs.c +++ b/drivers/pinctrl/pinctrl-mxs.c @@ -146,7 +146,7 @@ free: static void mxs_dt_free_map(struct pinctrl_dev *pctldev, struct pinctrl_map *map, unsigned num_maps) { - int i; + u32 i; for (i = 0; i < num_maps; i++) { if (map[i].type == PIN_MAP_TYPE_MUX_GROUP) @@ -203,7 +203,7 @@ static int mxs_pinctrl_enable(struct pinctrl_dev *pctldev, unsigned selector, void __iomem *reg; u8 bank, shift; u16 pin; - int i; + u32 i; for (i = 0; i < g->npins; i++) { bank = PINID_TO_BANK(g->pins[i]); @@ -256,7 +256,7 @@ static int mxs_pinconf_group_set(struct pinctrl_dev *pctldev, void __iomem *reg; u8 ma, vol, pull, bank, shift; u16 pin; - int i; + u32 i; ma = CONFIG_TO_MA(config); vol = CONFIG_TO_VOL(config); @@ -345,8 +345,7 @@ static int mxs_pinctrl_parse_group(struct platform_device *pdev, const char *propname = "fsl,pinmux-ids"; char *group; int length = strlen(np->name) + SUFFIX_LEN; - int i; - u32 val; + u32 val, i; group = devm_kzalloc(&pdev->dev, length, GFP_KERNEL); if (!group) -- cgit v1.2.3 From 16fa36be89305f06a217509fcce4f4aed5df0627 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Wed, 9 Jan 2013 19:28:09 +0100 Subject: pinctrl: mvebu: Fix compiler warnings match->data is const void * where as dev.platform_data is just void *. Add a cast to remove the const, which is causing the compiler warning: drivers/pinctrl/mvebu/pinctrl-kirkwood.c:461:26: warning: assignment discards 'const' qualifier from pointer target type Dove has the exact same warning, so gets the same cast. Signed-off-by: Andrew Lunn Acked-by: Jason Cooper Signed-off-by: Linus Walleij --- drivers/pinctrl/mvebu/pinctrl-dove.c | 2 +- drivers/pinctrl/mvebu/pinctrl-kirkwood.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/mvebu/pinctrl-dove.c b/drivers/pinctrl/mvebu/pinctrl-dove.c index 69aba3697287..428ea96a94d3 100644 --- a/drivers/pinctrl/mvebu/pinctrl-dove.c +++ b/drivers/pinctrl/mvebu/pinctrl-dove.c @@ -588,7 +588,7 @@ static int dove_pinctrl_probe(struct platform_device *pdev) { const struct of_device_id *match = of_match_device(dove_pinctrl_of_match, &pdev->dev); - pdev->dev.platform_data = match->data; + pdev->dev.platform_data = (void *)match->data; /* * General MPP Configuration Register is part of pdma registers. diff --git a/drivers/pinctrl/mvebu/pinctrl-kirkwood.c b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c index f12084e18057..7907e7ced944 100644 --- a/drivers/pinctrl/mvebu/pinctrl-kirkwood.c +++ b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c @@ -458,7 +458,7 @@ static int kirkwood_pinctrl_probe(struct platform_device *pdev) { const struct of_device_id *match = of_match_device(kirkwood_pinctrl_of_match, &pdev->dev); - pdev->dev.platform_data = match->data; + pdev->dev.platform_data = (void *)match->data; return mvebu_pinctrl_probe(pdev); } -- cgit v1.2.3 From 889c5d3e76dd506b8d1c3794824132e354b8255c Mon Sep 17 00:00:00 2001 From: Simon Guinot Date: Tue, 8 Jan 2013 22:37:04 +0100 Subject: pinctrl: mvebu: fix MPP6 value for kirkwood driver Note that I am not sure about the MPP value for the PTP functionality. It seems that the PTP references have been removed from the Marvell hardware specifications available to me. Signed-off-by: Simon Guinot Acked-by: Jason Cooper Acked-by: Andrew Lunn Signed-off-by: Linus Walleij --- drivers/pinctrl/mvebu/pinctrl-kirkwood.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/mvebu/pinctrl-kirkwood.c b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c index 7907e7ced944..cdd483df673e 100644 --- a/drivers/pinctrl/mvebu/pinctrl-kirkwood.c +++ b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c @@ -66,9 +66,9 @@ static struct mvebu_mpp_mode mv88f6xxx_mpp_modes[] = { MPP_VAR_FUNCTION(0x5, "sata0", "act", V(0, 1, 1, 1, 1, 0)), MPP_VAR_FUNCTION(0xb, "lcd", "vsync", V(0, 0, 0, 0, 1, 0))), MPP_MODE(6, - MPP_VAR_FUNCTION(0x0, "sysrst", "out", V(1, 1, 1, 1, 1, 1)), - MPP_VAR_FUNCTION(0x1, "spi", "mosi", V(1, 1, 1, 1, 1, 1)), - MPP_VAR_FUNCTION(0x2, "ptp", "trig", V(1, 1, 1, 1, 0, 0))), + MPP_VAR_FUNCTION(0x1, "sysrst", "out", V(1, 1, 1, 1, 1, 1)), + MPP_VAR_FUNCTION(0x2, "spi", "mosi", V(1, 1, 1, 1, 1, 1)), + MPP_VAR_FUNCTION(0x3, "ptp", "trig", V(1, 1, 1, 1, 0, 0))), MPP_MODE(7, MPP_VAR_FUNCTION(0x0, "gpo", NULL, V(1, 1, 1, 1, 1, 1)), MPP_VAR_FUNCTION(0x1, "pex", "rsto", V(1, 1, 1, 1, 0, 1)), -- cgit v1.2.3 From c1acd7090f67471998edd1d036003fcba2c1b419 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Fri, 18 Jan 2013 04:26:34 +0000 Subject: net: qmi_wwan: add ONDA MT8205 4G LTE MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The driver description files gives these names to the vendor specific functions on this modem: Diag VID_19D2&PID_0265&MI_00 NMEA VID_19D2&PID_0265&MI_01 AT cmd VID_19D2&PID_0265&MI_02 Modem VID_19D2&PID_0265&MI_03 Net VID_19D2&PID_0265&MI_04 Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index c4341085e5c7..575a5839ee34 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -433,6 +433,7 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x19d2, 0x0199, 1)}, /* ZTE MF820S */ {QMI_FIXED_INTF(0x19d2, 0x0200, 1)}, {QMI_FIXED_INTF(0x19d2, 0x0257, 3)}, /* ZTE MF821 */ + {QMI_FIXED_INTF(0x19d2, 0x0265, 4)}, /* ONDA MT8205 4G LTE */ {QMI_FIXED_INTF(0x19d2, 0x0284, 4)}, /* ZTE MF880 */ {QMI_FIXED_INTF(0x19d2, 0x0326, 4)}, /* ZTE MF821D */ {QMI_FIXED_INTF(0x19d2, 0x1008, 4)}, /* ZTE (Vodafone) K3570-Z */ -- cgit v1.2.3 From 9a4c831ebbc1bf7cb41079e421a74bddd508f251 Mon Sep 17 00:00:00 2001 From: Jianjun Kong Date: Fri, 18 Jan 2013 16:52:09 +0000 Subject: net/hyperv: fix wrong length of mac address This patch fixed wrong mac length, it should be ETH_ALEN, also replaced the hardcode 6 in hyperv_net.h Signed-off-by: Amos Kong Signed-off-by: David S. Miller --- drivers/net/hyperv/hyperv_net.h | 2 +- drivers/net/hyperv/netvsc_drv.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h index 5fd6f4674326..e6fe0d80d612 100644 --- a/drivers/net/hyperv/hyperv_net.h +++ b/drivers/net/hyperv/hyperv_net.h @@ -84,7 +84,7 @@ struct hv_netvsc_packet { }; struct netvsc_device_info { - unsigned char mac_adr[6]; + unsigned char mac_adr[ETH_ALEN]; bool link_state; /* 0 - link up, 1 - link down */ int ring_size; }; diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index f825a629a699..8264f0ef7692 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -349,7 +349,7 @@ static int netvsc_set_mac_addr(struct net_device *ndev, void *p) struct net_device_context *ndevctx = netdev_priv(ndev); struct hv_device *hdev = ndevctx->device_ctx; struct sockaddr *addr = p; - char save_adr[14]; + char save_adr[ETH_ALEN]; unsigned char save_aatype; int err; -- cgit v1.2.3 From 9992c2e2fbb72ffc63d4587c4aa94dfcd8229e55 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Mon, 21 Jan 2013 05:50:38 +0000 Subject: net: cdc_ncm: workaround for missing CDC Union MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adding support for the MBIM mode in some Sierra Wireless devices. Some Sierra Wireless firmwares support CDC MBIM but have no CDC Union funtional descriptor. This violates the MBIM specification, but we can easily work around the bug by looking at the Interface Association Descriptor instead. This is most likely what Windows uses too, which explains how the firmware bug has gone unnoticed until now. This change will not affect any currently supported device conforming to the NCM or MBIM specifications, as they must have the CDC Union descriptor. Cc: Greg Suarez Cc: Alexey Orishko Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ncm.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'drivers') diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 71b6e92b8e9b..4041159f6c98 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -344,6 +344,23 @@ static const struct ethtool_ops cdc_ncm_ethtool_ops = { .nway_reset = usbnet_nway_reset, }; +/* return first slave interface if an IAD matches the given master */ +static struct usb_interface *get_iad_slave(struct usb_device *udev, + struct usb_interface *master) { + int i; + struct usb_interface_assoc_descriptor *iad; + u8 mnum = master->cur_altsetting->desc.bInterfaceNumber; + + for (i = 0; i < USB_MAXIADS; i++) { + iad = udev->actconfig->intf_assoc[i]; + if (!iad) + break; + if (iad->bFirstInterface == mnum && iad->bInterfaceCount == 2) + return usb_ifnum_to_if(udev, mnum + 1); + } + return NULL; +} + int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting) { struct cdc_ncm_ctx *ctx; @@ -435,6 +452,16 @@ advance: len -= temp; } + /* some buggy devices have an IAD but no CDC Union */ + if (!ctx->union_desc) { + dev_dbg(&intf->dev, "missing CDC Union descriptor\n"); + ctx->data = get_iad_slave(dev->udev, intf); + if (ctx->data) { + ctx->control = intf; + dev_dbg(&intf->dev, "got slave from IAD\n"); + } + } + /* check if we got everything */ if ((ctx->control == NULL) || (ctx->data == NULL) || ((!ctx->mbim_desc) && ((ctx->ether_desc == NULL) || (ctx->control != intf)))) -- cgit v1.2.3 From 328d7b8a4ab045484e1cc09579abf13c8c6223e3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Mon, 21 Jan 2013 05:50:39 +0000 Subject: net: cdc_mbim: send ZLP after max sized NTBs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We normally avoid sending ZLPs by padding NTBs with a zero byte if the NTB is shorter than dwNtbOutMaxSize, resulting in a short USB packet instead of a ZLP. But in the case where the NTB length is exactly dwNtbOutMaxSize and this is an exact multiplum of wMaxPacketSize, then we must send a ZLP. This fixes an issue seen on a Sierra Wireless MC7710 device where the transmission would fail whenever we ended up padding the NTBs to max size. Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/cdc_mbim.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c index 42f51c71ec1f..3a5673aa1c37 100644 --- a/drivers/net/usb/cdc_mbim.c +++ b/drivers/net/usb/cdc_mbim.c @@ -366,7 +366,7 @@ err: static const struct driver_info cdc_mbim_info = { .description = "CDC MBIM", - .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN, + .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN | FLAG_SEND_ZLP, .bind = cdc_mbim_bind, .unbind = cdc_mbim_unbind, .manage_power = cdc_mbim_manage_power, -- cgit v1.2.3 From 6b4ef60299e30daa8643218fde6152d8a01e2d4b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Mon, 21 Jan 2013 05:50:40 +0000 Subject: net: cdc_ncm: fix error path for single interface probing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit bbc8d92 (net: cdc_ncm: add Huawei devices) implemented support for devices with a single combined control and data interface. Fix up the error path so that we do not double release such interfaces in case of probing failures. Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ncm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 4041159f6c98..2c4b41ffddb6 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -524,7 +524,8 @@ advance: error2: usb_set_intfdata(ctx->control, NULL); usb_set_intfdata(ctx->data, NULL); - usb_driver_release_interface(driver, ctx->data); + if (ctx->data != ctx->control) + usb_driver_release_interface(driver, ctx->data); error: cdc_ncm_free((struct cdc_ncm_ctx *)dev->data[0]); dev->data[0] = 0; -- cgit v1.2.3 From 6509141f9c2ba74df6cc72ec35cd1865276ae3a4 Mon Sep 17 00:00:00 2001 From: Wei Shuai Date: Mon, 21 Jan 2013 06:00:31 +0000 Subject: usbnet: add new flag FLAG_NOARP for usb net devices We do have some USB net devices, which cannot do ARP. so we can introduce a new flag FLAG_NOARP, then client drivers can easily handle this kind of devices Signed-off-by: Wei Shuai Signed-off-by: David S. Miller --- drivers/net/usb/usbnet.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 3d4bf01641b4..f34b2ebee815 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1448,6 +1448,10 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) if ((dev->driver_info->flags & FLAG_WWAN) != 0) strcpy(net->name, "wwan%d"); + /* devices that cannot do ARP */ + if ((dev->driver_info->flags & FLAG_NOARP) != 0) + net->flags |= IFF_NOARP; + /* maybe the remote can't receive an Ethernet MTU */ if (net->mtu > (dev->hard_mtu - net->hard_header_len)) net->mtu = dev->hard_mtu - net->hard_header_len; -- cgit v1.2.3 From 2f62d5aa2879dc380881b2c74d042051dbb60bc8 Mon Sep 17 00:00:00 2001 From: Wei Shuai Date: Mon, 21 Jan 2013 06:00:32 +0000 Subject: cdc_ncm: add support FLAG_NOARP for Infineon modem platform Infineon(now Intel) HSPA Modem platform NCM cannot support ARP. we can define a new common structure wwan_noarp_info. Then more similiar NO ARP devices can be handled easily Signed-off-by: Wei Shuai Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ncm.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers') diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 2c4b41ffddb6..f94711caa08a 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -1183,6 +1183,20 @@ static const struct driver_info wwan_info = { .tx_fixup = cdc_ncm_tx_fixup, }; +/* Same as wwan_info, but with FLAG_NOARP */ +static const struct driver_info wwan_noarp_info = { + .description = "Mobile Broadband Network Device (NO ARP)", + .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET + | FLAG_WWAN | FLAG_NOARP, + .bind = cdc_ncm_bind, + .unbind = cdc_ncm_unbind, + .check_connect = cdc_ncm_check_connect, + .manage_power = usbnet_manage_power, + .status = cdc_ncm_status, + .rx_fixup = cdc_ncm_rx_fixup, + .tx_fixup = cdc_ncm_tx_fixup, +}; + static const struct usb_device_id cdc_devs[] = { /* Ericsson MBM devices like F5521gw */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO @@ -1222,6 +1236,13 @@ static const struct usb_device_id cdc_devs[] = { .driver_info = (unsigned long)&wwan_info, }, + /* Infineon(now Intel) HSPA Modem platform */ + { USB_DEVICE_AND_INTERFACE_INFO(0x1519, 0x0443, + USB_CLASS_COMM, + USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&wwan_noarp_info, + }, + /* Generic CDC-NCM devices */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), -- cgit v1.2.3 From d721a1752ba544df8d7d36959038b26bc92bdf80 Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Mon, 21 Jan 2013 11:57:21 +0000 Subject: isdn/gigaset: fix zero size border case in debug dump If subtracting 12 from l leaves zero we'd do a zero size allocation, leading to an oops later when we try to set the NUL terminator. Reported-by: Dan Carpenter Signed-off-by: Tilman Schmidt Signed-off-by: David S. Miller --- drivers/isdn/gigaset/capi.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c index 68452b768da2..03a0a01a4054 100644 --- a/drivers/isdn/gigaset/capi.c +++ b/drivers/isdn/gigaset/capi.c @@ -248,6 +248,8 @@ static inline void dump_rawmsg(enum debuglevel level, const char *tag, CAPIMSG_APPID(data), CAPIMSG_MSGID(data), l, CAPIMSG_CONTROL(data)); l -= 12; + if (l <= 0) + return; dbgline = kmalloc(3 * l, GFP_ATOMIC); if (!dbgline) return; -- cgit v1.2.3 From e1bfe75d66f809ad61d0a6d070dc78bb05369026 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 5 Dec 2012 11:46:04 +0900 Subject: mfd: arizona: Disable control interface reporting for WM5102 and WM5110 Rather than disabling the error reporting only for earlier revisions unconditionally disable it. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/arizona-irq.c | 18 ++---------------- 1 file changed, 2 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c index 74713bf5371f..2bec5f0db3ee 100644 --- a/drivers/mfd/arizona-irq.c +++ b/drivers/mfd/arizona-irq.c @@ -176,14 +176,7 @@ int arizona_irq_init(struct arizona *arizona) aod = &wm5102_aod; irq = &wm5102_irq; - switch (arizona->rev) { - case 0: - case 1: - ctrlif_error = false; - break; - default: - break; - } + ctrlif_error = false; break; #endif #ifdef CONFIG_MFD_WM5110 @@ -191,14 +184,7 @@ int arizona_irq_init(struct arizona *arizona) aod = &wm5110_aod; irq = &wm5110_irq; - switch (arizona->rev) { - case 0: - case 1: - ctrlif_error = false; - break; - default: - break; - } + ctrlif_error = false; break; #endif default: -- cgit v1.2.3 From ee487114f0274ed62c92a727787cd6fa4d465157 Mon Sep 17 00:00:00 2001 From: AnilKumar Ch Date: Mon, 10 Dec 2012 16:44:56 +0530 Subject: mfd: tps65910: Select REGMAP_IRQ in Kconfig to fix build error TPS65910 mfd driver uses functions that are only avaiable when REGMAP_IRQ is enabled. So "select REGMAP_IRQ" is added to mfd Kconfig to fix below build error: drivers/built-in.o: In function `tps65910_irq_exit': /media/anil/kernel/drivers/mfd/tps65910.c:265: undefined reference to `regmap_del_irq_chip' drivers/built-in.o: In function `tps65910_irq_init': /media/anil/kernel/drivers/mfd/tps65910.c:254: undefined reference to `regmap_add_irq_chip' drivers/built-in.o: In function `tps65910_i2c_probe': /media/anil/kernel/drivers/mfd/tps65910.c:509: undefined reference to `regmap_irq_get_domain' make: *** [vmlinux] Error 1 Signed-off-by: AnilKumar Ch Tested-by: Matt Porter Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 47ad4e270877..ff553babf455 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -237,6 +237,7 @@ config MFD_TPS65910 depends on I2C=y && GPIOLIB select MFD_CORE select REGMAP_I2C + select REGMAP_IRQ select IRQ_DOMAIN help if you say yes here you get support for the TPS65910 series of -- cgit v1.2.3 From 89d9b1c99374997d68910ba49d5b7df80e7f2061 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 20 Dec 2012 10:20:15 +0100 Subject: mfd: db8500-prcmu: Fix irqdomain usage This fixes two issues with the DB8500 PRCMU irqdomain: - You have to state the irq base 0 to get a linear domain for the DT case from irq_domain_add_simple() - The irqdomain was not used to translate the initial irq request using irq_create_mapping() making the linear case fail as it was lacking a proper descriptor. I took this opportunity to fix two lines of whitespace errors in related code as I was anyway messing around with it. Cc: stable@kernel.org Acked-by Lee Jones Signed-off-by: Linus Walleij Signed-off-by: Samuel Ortiz --- drivers/mfd/db8500-prcmu.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index dc8826d8d69d..268f45d42394 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -2524,7 +2524,7 @@ static bool read_mailbox_0(void) for (n = 0; n < NUM_PRCMU_WAKEUPS; n++) { if (ev & prcmu_irq_bit[n]) - generic_handle_irq(IRQ_PRCMU_BASE + n); + generic_handle_irq(irq_find_mapping(db8500_irq_domain, n)); } r = true; break; @@ -2737,13 +2737,14 @@ static int db8500_irq_map(struct irq_domain *d, unsigned int virq, } static struct irq_domain_ops db8500_irq_ops = { - .map = db8500_irq_map, - .xlate = irq_domain_xlate_twocell, + .map = db8500_irq_map, + .xlate = irq_domain_xlate_twocell, }; static int db8500_irq_init(struct device_node *np) { - int irq_base = -1; + int irq_base = 0; + int i; /* In the device tree case, just take some IRQs */ if (!np) @@ -2758,6 +2759,10 @@ static int db8500_irq_init(struct device_node *np) return -ENOSYS; } + /* All wakeups will be used, so create mappings for all */ + for (i = 0; i < NUM_PRCMU_WAKEUPS; i++) + irq_create_mapping(db8500_irq_domain, i); + return 0; } -- cgit v1.2.3 From 136d982ecae912c815587a1653f235f0ef570da8 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 25 Dec 2012 00:16:43 +0800 Subject: mfd: max77686: Init max77686->dev before using it Current code uses max77686->dev in the dev_err call before setting it to &i2c->dev. Fix it. Signed-off-by: Axel Lin Signed-off-by: Samuel Ortiz --- drivers/mfd/max77686.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c index f6878f8db57d..4d73963cd8f0 100644 --- a/drivers/mfd/max77686.c +++ b/drivers/mfd/max77686.c @@ -93,15 +93,6 @@ static int max77686_i2c_probe(struct i2c_client *i2c, if (max77686 == NULL) return -ENOMEM; - max77686->regmap = regmap_init_i2c(i2c, &max77686_regmap_config); - if (IS_ERR(max77686->regmap)) { - ret = PTR_ERR(max77686->regmap); - dev_err(max77686->dev, "Failed to allocate register map: %d\n", - ret); - kfree(max77686); - return ret; - } - i2c_set_clientdata(i2c, max77686); max77686->dev = &i2c->dev; max77686->i2c = i2c; @@ -111,6 +102,15 @@ static int max77686_i2c_probe(struct i2c_client *i2c, max77686->irq_gpio = pdata->irq_gpio; max77686->irq = i2c->irq; + max77686->regmap = regmap_init_i2c(i2c, &max77686_regmap_config); + if (IS_ERR(max77686->regmap)) { + ret = PTR_ERR(max77686->regmap); + dev_err(max77686->dev, "Failed to allocate register map: %d\n", + ret); + kfree(max77686); + return ret; + } + if (regmap_read(max77686->regmap, MAX77686_REG_DEVICE_ID, &data) < 0) { dev_err(max77686->dev, -- cgit v1.2.3 From 2429d863868edb611f033c9ce4db519fbc270240 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 25 Dec 2012 00:28:36 +0800 Subject: mfd: max77693: Init max77693->dev before using it Current code uses max77693->dev in the dev_err call before setting it to &i2c->dev. Fix it. This patch also includes below cleanups: - Move checking pdata earlier and show dev_err if no platform data found. - Remove unnecessary err_regmap goto label. - Unregister i2c devices if regmap init for muic fails. Signed-off-by: Axel Lin Signed-off-by: Samuel Ortiz --- drivers/mfd/max77693.c | 34 ++++++++++++++++++---------------- 1 file changed, 18 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c index cc5155e20494..9e60fed5ff82 100644 --- a/drivers/mfd/max77693.c +++ b/drivers/mfd/max77693.c @@ -114,35 +114,37 @@ static int max77693_i2c_probe(struct i2c_client *i2c, u8 reg_data; int ret = 0; + if (!pdata) { + dev_err(&i2c->dev, "No platform data found.\n"); + return -EINVAL; + } + max77693 = devm_kzalloc(&i2c->dev, sizeof(struct max77693_dev), GFP_KERNEL); if (max77693 == NULL) return -ENOMEM; - max77693->regmap = devm_regmap_init_i2c(i2c, &max77693_regmap_config); - if (IS_ERR(max77693->regmap)) { - ret = PTR_ERR(max77693->regmap); - dev_err(max77693->dev,"failed to allocate register map: %d\n", - ret); - goto err_regmap; - } - i2c_set_clientdata(i2c, max77693); max77693->dev = &i2c->dev; max77693->i2c = i2c; max77693->irq = i2c->irq; max77693->type = id->driver_data; - if (!pdata) - goto err_regmap; + max77693->regmap = devm_regmap_init_i2c(i2c, &max77693_regmap_config); + if (IS_ERR(max77693->regmap)) { + ret = PTR_ERR(max77693->regmap); + dev_err(max77693->dev, "failed to allocate register map: %d\n", + ret); + return ret; + } max77693->wakeup = pdata->wakeup; - if (max77693_read_reg(max77693->regmap, - MAX77693_PMIC_REG_PMIC_ID2, ®_data) < 0) { + ret = max77693_read_reg(max77693->regmap, MAX77693_PMIC_REG_PMIC_ID2, + ®_data); + if (ret < 0) { dev_err(max77693->dev, "device not found on this channel\n"); - ret = -ENODEV; - goto err_regmap; + return ret; } else dev_info(max77693->dev, "device ID: 0x%x\n", reg_data); @@ -163,7 +165,7 @@ static int max77693_i2c_probe(struct i2c_client *i2c, ret = PTR_ERR(max77693->regmap_muic); dev_err(max77693->dev, "failed to allocate register map: %d\n", ret); - goto err_regmap; + goto err_regmap_muic; } ret = max77693_irq_init(max77693); @@ -184,9 +186,9 @@ static int max77693_i2c_probe(struct i2c_client *i2c, err_mfd: max77693_irq_exit(max77693); err_irq: +err_regmap_muic: i2c_unregister_device(max77693->muic); i2c_unregister_device(max77693->haptic); -err_regmap: return ret; } -- cgit v1.2.3 From b30dd8f2e5e6a1b31b89d93d85942055b97327c2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 25 Dec 2012 10:52:49 +0800 Subject: mfd: pcf50633: Init pcf->dev before using it Current code uses pcf->dev in the dev_err call before setting it to &client->dev. Fix it. Signed-off-by: Axel Lin Signed-off-by: Samuel Ortiz --- drivers/mfd/pcf50633-core.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c index 64803f13bcec..d11567307fbe 100644 --- a/drivers/mfd/pcf50633-core.c +++ b/drivers/mfd/pcf50633-core.c @@ -208,6 +208,8 @@ static int pcf50633_probe(struct i2c_client *client, if (!pcf) return -ENOMEM; + i2c_set_clientdata(client, pcf); + pcf->dev = &client->dev; pcf->pdata = pdata; mutex_init(&pcf->lock); @@ -219,9 +221,6 @@ static int pcf50633_probe(struct i2c_client *client, return ret; } - i2c_set_clientdata(client, pcf); - pcf->dev = &client->dev; - version = pcf50633_reg_read(pcf, 0); variant = pcf50633_reg_read(pcf, 1); if (version < 0 || variant < 0) { -- cgit v1.2.3 From 1f0529b4d80ad02df637be67ed4f82e93b8db32f Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 2 Jan 2013 14:40:14 +0100 Subject: mfd: tc3589x: Use simple irqdomain This fixes a regression in the TC3589x driver introduced in commit 15e27b1088245a2de3b7d09d39cd209212eb16af "mfd: Provide the tc3589x with its own IRQ domain" If a system with a TC3589x expander is booted and a base IRQ is passed from platform data, a legacy domain will be used. However, since the Ux500 is now switched to use SPARSE_IRQ, no descriptors get allocated on-the-fly, and we get a crash. Fix this by switching to using the simple irqdomain that will handle this uniformly and also allocates descriptors explicitly. Also fix two small whitespace errors in the vicinity while we're at it. Cc: stable@kernel.org Acked-by: Lee Jones Signed-off-by: Linus Walleij Signed-off-by: Samuel Ortiz --- drivers/mfd/tc3589x.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c index a06d66b929b1..ecc092c7f745 100644 --- a/drivers/mfd/tc3589x.c +++ b/drivers/mfd/tc3589x.c @@ -219,25 +219,18 @@ static void tc3589x_irq_unmap(struct irq_domain *d, unsigned int virq) } static struct irq_domain_ops tc3589x_irq_ops = { - .map = tc3589x_irq_map, + .map = tc3589x_irq_map, .unmap = tc3589x_irq_unmap, - .xlate = irq_domain_xlate_twocell, + .xlate = irq_domain_xlate_twocell, }; static int tc3589x_irq_init(struct tc3589x *tc3589x, struct device_node *np) { int base = tc3589x->irq_base; - if (base) { - tc3589x->domain = irq_domain_add_legacy( - NULL, TC3589x_NR_INTERNAL_IRQS, base, - 0, &tc3589x_irq_ops, tc3589x); - } - else { - tc3589x->domain = irq_domain_add_linear( - np, TC3589x_NR_INTERNAL_IRQS, - &tc3589x_irq_ops, tc3589x); - } + tc3589x->domain = irq_domain_add_simple( + np, TC3589x_NR_INTERNAL_IRQS, base, + &tc3589x_irq_ops, tc3589x); if (!tc3589x->domain) { dev_err(tc3589x->dev, "Failed to create irqdomain\n"); -- cgit v1.2.3 From 9270bdf5405668ca5d75ace1d7872e2762162c47 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 4 Jan 2013 17:16:12 +0000 Subject: mfd: arizona: Check errors from regcache_sync() If the control bus is unrelabile we may hit errors during regcache_sync(), especially given that it tends to be one the most dense bursts of I/O in many systems. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/arizona-core.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index bc8a3edb6bbf..222c03a5ddc0 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -239,7 +239,12 @@ static int arizona_runtime_resume(struct device *dev) return ret; } - regcache_sync(arizona->regmap); + ret = regcache_sync(arizona->regmap); + if (ret != 0) { + dev_err(arizona->dev, "Failed to restore register cache\n"); + regulator_disable(arizona->dcvdd); + return ret; + } return 0; } -- cgit v1.2.3 From 8b77b3762c37c9c2ce72f0d075890a3e8849702f Mon Sep 17 00:00:00 2001 From: Haojian Zhuang Date: Fri, 18 Jan 2013 15:31:05 +0800 Subject: Revert "pinctrl: single: support gpio request and free" This reverts commit 2e8b2eab94c35d83bb7da71c63b4695f32ddca88. Conflicts: drivers/pinctrl/pinctrl-single.c ERROR: "__aeabi_uldivmod" [drivers/pinctrl/pinctrl-single.ko] undefined!] On Fri, Jan 11, 2013 at 4:00 PM, Russell King wrote: > The above error happens in builds including pinctrl-single - the > reason > is this, where resource_size_t may be 64-bit. > > gpio->range.pin_base = (r.start - pcs->res->start) / > mux_bytes; > gpio->range.npins = (r.end - r.start) / mux_bytes + 1; The reason of not fixing this issue and reverting the patch instead is this patch can't handle another case. It's not easy to handle multiple gpios sharing one pin register. So this gpio range feature will be implemented by other patches. Acked-by: Tony Lindgren Signed-off-by: Haojian Zhuang Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-single.c | 79 +--------------------------------------- 1 file changed, 2 insertions(+), 77 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c index f6a360b86eb6..5c32e880bcb2 100644 --- a/drivers/pinctrl/pinctrl-single.c +++ b/drivers/pinctrl/pinctrl-single.c @@ -30,7 +30,6 @@ #define PCS_MUX_BITS_NAME "pinctrl-single,bits" #define PCS_REG_NAME_LEN ((sizeof(unsigned long) * 2) + 1) #define PCS_OFF_DISABLED ~0U -#define PCS_MAX_GPIO_VALUES 2 /** * struct pcs_pingroup - pingroups for a function @@ -77,16 +76,6 @@ struct pcs_function { struct list_head node; }; -/** - * struct pcs_gpio_range - pinctrl gpio range - * @range: subrange of the GPIO number space - * @gpio_func: gpio function value in the pinmux register - */ -struct pcs_gpio_range { - struct pinctrl_gpio_range range; - int gpio_func; -}; - /** * struct pcs_data - wrapper for data needed by pinctrl framework * @pa: pindesc array @@ -414,26 +403,9 @@ static void pcs_disable(struct pinctrl_dev *pctldev, unsigned fselector, } static int pcs_request_gpio(struct pinctrl_dev *pctldev, - struct pinctrl_gpio_range *range, unsigned pin) + struct pinctrl_gpio_range *range, unsigned offset) { - struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev); - struct pcs_gpio_range *gpio = NULL; - int end, mux_bytes; - unsigned data; - - gpio = container_of(range, struct pcs_gpio_range, range); - end = range->pin_base + range->npins - 1; - if (pin < range->pin_base || pin > end) { - dev_err(pctldev->dev, - "pin %d isn't in the range of %d to %d\n", - pin, range->pin_base, end); - return -EINVAL; - } - mux_bytes = pcs->width / BITS_PER_BYTE; - data = pcs->read(pcs->base + pin * mux_bytes) & ~pcs->fmask; - data |= gpio->gpio_func; - pcs->write(data, pcs->base + pin * mux_bytes); - return 0; + return -ENOTSUPP; } static struct pinmux_ops pcs_pinmux_ops = { @@ -907,49 +879,6 @@ static void pcs_free_resources(struct pcs_device *pcs) static struct of_device_id pcs_of_match[]; -static int pcs_add_gpio_range(struct device_node *node, struct pcs_device *pcs) -{ - struct pcs_gpio_range *gpio; - struct device_node *child; - struct resource r; - const char name[] = "pinctrl-single"; - u32 gpiores[PCS_MAX_GPIO_VALUES]; - int ret, i = 0, mux_bytes = 0; - - for_each_child_of_node(node, child) { - ret = of_address_to_resource(child, 0, &r); - if (ret < 0) - continue; - memset(gpiores, 0, sizeof(u32) * PCS_MAX_GPIO_VALUES); - ret = of_property_read_u32_array(child, "pinctrl-single,gpio", - gpiores, PCS_MAX_GPIO_VALUES); - if (ret < 0) - continue; - gpio = devm_kzalloc(pcs->dev, sizeof(*gpio), GFP_KERNEL); - if (!gpio) { - dev_err(pcs->dev, "failed to allocate pcs gpio\n"); - return -ENOMEM; - } - gpio->range.name = devm_kzalloc(pcs->dev, sizeof(name), - GFP_KERNEL); - if (!gpio->range.name) { - dev_err(pcs->dev, "failed to allocate range name\n"); - return -ENOMEM; - } - memcpy((char *)gpio->range.name, name, sizeof(name)); - - gpio->range.id = i++; - gpio->range.base = gpiores[0]; - gpio->gpio_func = gpiores[1]; - mux_bytes = pcs->width / BITS_PER_BYTE; - gpio->range.pin_base = (r.start - pcs->res->start) / mux_bytes; - gpio->range.npins = (r.end - r.start) / mux_bytes + 1; - - pinctrl_add_gpio_range(pcs->pctl, &gpio->range); - } - return 0; -} - static int pcs_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -1046,10 +975,6 @@ static int pcs_probe(struct platform_device *pdev) goto free; } - ret = pcs_add_gpio_range(np, pcs); - if (ret < 0) - goto free; - dev_info(pcs->dev, "%i pins at pa %p size %u\n", pcs->desc.npins, pcs->base, pcs->size); -- cgit v1.2.3 From a17155bc9c9a43f94f4f502ad9776bf082219d84 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sun, 6 Jan 2013 01:16:19 -0800 Subject: mfd: vexpress: Export global functions to fix build error Compiling vexpress client drivers as module results in error messages such as ERROR: "__vexpress_config_func_get" [drivers/hwmon/vexpress.ko] undefined! ERROR: "vexpress_config_func_put" [drivers/hwmon/vexpress.ko] undefined! This is because the global functions in drivers/mfd/vexpress-config.c are not exported. Fix it. Signed-off-by: Guenter Roeck Signed-off-by: Samuel Ortiz --- drivers/mfd/vexpress-config.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/vexpress-config.c b/drivers/mfd/vexpress-config.c index fae15d880758..3c1723aa6225 100644 --- a/drivers/mfd/vexpress-config.c +++ b/drivers/mfd/vexpress-config.c @@ -67,6 +67,7 @@ struct vexpress_config_bridge *vexpress_config_bridge_register( return bridge; } +EXPORT_SYMBOL(vexpress_config_bridge_register); void vexpress_config_bridge_unregister(struct vexpress_config_bridge *bridge) { @@ -83,6 +84,7 @@ void vexpress_config_bridge_unregister(struct vexpress_config_bridge *bridge) while (!list_empty(&__bridge.transactions)) cpu_relax(); } +EXPORT_SYMBOL(vexpress_config_bridge_unregister); struct vexpress_config_func { @@ -142,6 +144,7 @@ struct vexpress_config_func *__vexpress_config_func_get(struct device *dev, return func; } +EXPORT_SYMBOL(__vexpress_config_func_get); void vexpress_config_func_put(struct vexpress_config_func *func) { @@ -149,7 +152,7 @@ void vexpress_config_func_put(struct vexpress_config_func *func) of_node_put(func->bridge->node); kfree(func); } - +EXPORT_SYMBOL(vexpress_config_func_put); struct vexpress_config_trans { struct vexpress_config_func *func; @@ -229,6 +232,7 @@ void vexpress_config_complete(struct vexpress_config_bridge *bridge, complete(&trans->completion); } +EXPORT_SYMBOL(vexpress_config_complete); int vexpress_config_wait(struct vexpress_config_trans *trans) { @@ -236,7 +240,7 @@ int vexpress_config_wait(struct vexpress_config_trans *trans) return trans->status; } - +EXPORT_SYMBOL(vexpress_config_wait); int vexpress_config_read(struct vexpress_config_func *func, int offset, u32 *data) -- cgit v1.2.3 From 00441b5e6b98ad6a50b5cb7f88d473e3ea1e0d75 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Wed, 9 Jan 2013 10:06:03 +0000 Subject: mfd: Fix compile errors and warnings when !CONFIG_AB8500_BM MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit drivers/mfd/ab8500-core.c:1015:21: error: ‘ab8500_bm_data’ undeclared here include/linux/mfd/abx500/ab8500-bm.h:445:13: warning: ‘ab8500_fg_reinit’ defined but not used include/linux/mfd/abx500/ab8500-bm.h:448:13: warning: ‘ab8500_charger_usb_state_changed’ defined but not used include/linux/mfd/abx500/ab8500-bm.h:451:29: warning: ‘ab8500_btemp_get’ defined but not used include/linux/mfd/abx500/ab8500-bm.h:455:12: warning: ‘ab8500_btemp_get_batctrl_temp’ defined but not used include/linux/mfd/abx500/ab8500-bm.h:463:12: warning: ‘ab8500_fg_inst_curr_blocking’ defined but not used include/linux/mfd/abx500/ab8500-bm.h:442:12: warning: ‘ab8500_fg_inst_curr_done’ defined but not used include/linux/mfd/abx500/ab8500-bm.h:447:26: warning: ‘ab8500_fg_get’ defined but not used Signed-off-by: Lee Jones Signed-off-by: Samuel Ortiz --- drivers/mfd/ab8500-core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index e1650badd106..4778bb124efe 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From a05948f296ce103989b28a2606e47d2e287c3c89 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 22 Jan 2013 06:33:05 +0000 Subject: netxen: fix off by one bug in netxen_release_tx_buffer() Christoph Paasch found netxen could trigger a BUG in its dismantle phase, in netxen_release_tx_buffer(), using full size TSO packets. cmd_buf->frag_count includes the skb->data part, so the loop must start at index 1 instead of 0, or else we can make an out of bound access to cmd_buff->frag_array[MAX_SKB_FRAGS + 2] Christoph provided the fixes in netxen_map_tx_skb() function. In case of a dma mapping error, its better to clear the dma fields so that we don't try to unmap them again in netxen_release_tx_buffer() Reported-by: Christoph Paasch Signed-off-by: Eric Dumazet Tested-by: Christoph Paasch Cc: Sony Chacko Cc: Rajesh Borundia Signed-off-by: Christoph Paasch Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c | 2 +- drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c index bc165f4d0f65..695667d471a1 100644 --- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c +++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c @@ -144,7 +144,7 @@ void netxen_release_tx_buffers(struct netxen_adapter *adapter) buffrag->length, PCI_DMA_TODEVICE); buffrag->dma = 0ULL; } - for (j = 0; j < cmd_buf->frag_count; j++) { + for (j = 1; j < cmd_buf->frag_count; j++) { buffrag++; if (buffrag->dma) { pci_unmap_page(adapter->pdev, buffrag->dma, diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c index 6098fd4adfeb..69e321a65077 100644 --- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c +++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c @@ -1963,10 +1963,12 @@ unwind: while (--i >= 0) { nf = &pbuf->frag_array[i+1]; pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); + nf->dma = 0ULL; } nf = &pbuf->frag_array[0]; pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); + nf->dma = 0ULL; out_err: return -ENOMEM; -- cgit v1.2.3 From fa4cffcba9e13798ed7c6b8526b91b1631ecb53e Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Wed, 16 Jan 2013 11:45:15 +0100 Subject: iwlegacy: fix IBSS cleanup We do not correctly change interface type when switching from IBSS mode to STA mode, that results in microcode errors. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=886946 Reported-by: Jaroslav Skarvada Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville --- drivers/net/wireless/iwlegacy/common.c | 35 ++++++++++++++-------------------- 1 file changed, 14 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c index 7e16d10a7f14..90b8970eadf0 100644 --- a/drivers/net/wireless/iwlegacy/common.c +++ b/drivers/net/wireless/iwlegacy/common.c @@ -3958,17 +3958,21 @@ il_connection_init_rx_config(struct il_priv *il) memset(&il->staging, 0, sizeof(il->staging)); - if (!il->vif) { + switch (il->iw_mode) { + case NL80211_IFTYPE_UNSPECIFIED: il->staging.dev_type = RXON_DEV_TYPE_ESS; - } else if (il->vif->type == NL80211_IFTYPE_STATION) { + break; + case NL80211_IFTYPE_STATION: il->staging.dev_type = RXON_DEV_TYPE_ESS; il->staging.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; - } else if (il->vif->type == NL80211_IFTYPE_ADHOC) { + break; + case NL80211_IFTYPE_ADHOC: il->staging.dev_type = RXON_DEV_TYPE_IBSS; il->staging.flags = RXON_FLG_SHORT_PREAMBLE_MSK; il->staging.filter_flags = RXON_FILTER_BCON_AWARE_MSK | RXON_FILTER_ACCEPT_GRP_MSK; - } else { + break; + default: IL_ERR("Unsupported interface type %d\n", il->vif->type); return; } @@ -4550,8 +4554,7 @@ out: EXPORT_SYMBOL(il_mac_add_interface); static void -il_teardown_interface(struct il_priv *il, struct ieee80211_vif *vif, - bool mode_change) +il_teardown_interface(struct il_priv *il, struct ieee80211_vif *vif) { lockdep_assert_held(&il->mutex); @@ -4560,9 +4563,7 @@ il_teardown_interface(struct il_priv *il, struct ieee80211_vif *vif, il_force_scan_end(il); } - if (!mode_change) - il_set_mode(il); - + il_set_mode(il); } void @@ -4575,8 +4576,8 @@ il_mac_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) WARN_ON(il->vif != vif); il->vif = NULL; - - il_teardown_interface(il, vif, false); + il->iw_mode = NL80211_IFTYPE_UNSPECIFIED; + il_teardown_interface(il, vif); memset(il->bssid, 0, ETH_ALEN); D_MAC80211("leave\n"); @@ -4685,18 +4686,10 @@ il_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, } /* success */ - il_teardown_interface(il, vif, true); vif->type = newtype; vif->p2p = false; - err = il_set_mode(il); - WARN_ON(err); - /* - * We've switched internally, but submitting to the - * device may have failed for some reason. Mask this - * error, because otherwise mac80211 will not switch - * (and set the interface type back) and we'll be - * out of sync with it. - */ + il->iw_mode = newtype; + il_teardown_interface(il, vif); err = 0; out: -- cgit v1.2.3 From 430d25251ef3c36404e6b4a7eaaae35e225bc8e7 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sat, 19 Jan 2013 12:36:49 -0600 Subject: rtlwifi: Fix build warning introduced by commit a290593 The kbuild test robot reports the following warning with x86_64-randconfig-x955: warning: (RTL8192CE && RTL8192SE && RTL8192DE && RTL8723AE && RTL8192CU) selects RTLWIFI which has unmet direct dependencies (NETDEVICES && WLAN && (RTL8192CE || RTL8192CU || RTL8192SE || RTL8192DE)) This warning was introduced in commit a290593, "rtlwifi: Modify files for addition of rtl8723ae", and is d ue to a missing dependence of RTLWIFI on RTL8723AE. Signed-off-by: Larry Finger Cc: kbuild test robot Reported-by: kbuild test robot Signed-off-by: John W. Linville --- drivers/net/wireless/rtlwifi/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/rtlwifi/Kconfig b/drivers/net/wireless/rtlwifi/Kconfig index 21b1bbb93a7e..b80bc4612581 100644 --- a/drivers/net/wireless/rtlwifi/Kconfig +++ b/drivers/net/wireless/rtlwifi/Kconfig @@ -57,12 +57,12 @@ config RTL8192CU config RTLWIFI tristate - depends on RTL8192CE || RTL8192CU || RTL8192SE || RTL8192DE + depends on RTL8192CE || RTL8192CU || RTL8192SE || RTL8192DE || RTL8723AE default m config RTLWIFI_DEBUG bool "Additional debugging output" - depends on RTL8192CE || RTL8192CU || RTL8192SE || RTL8192DE + depends on RTL8192CE || RTL8192CU || RTL8192SE || RTL8192DE || RTL8723AE default y config RTL8192C_COMMON -- cgit v1.2.3 From 4a8f199508d79ff8a7d1e22f47b912baaf225336 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 20 Jan 2013 21:55:20 +0100 Subject: ath9k_hw: fix calibration issues on chainmask that don't include chain 0 Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_calib.c | 2 ++ drivers/net/wireless/ath/ath9k/ar9003_phy.c | 2 +- drivers/net/wireless/ath/ath9k/hw.h | 1 + 3 files changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 8b0d8dcd7625..56317b0fb6b6 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -976,6 +976,8 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, AR_PHY_CL_TAB_1, AR_PHY_CL_TAB_2 }; + ar9003_hw_set_chain_masks(ah, ah->caps.rx_chainmask, ah->caps.tx_chainmask); + if (rtt) { if (!ar9003_hw_rtt_restore(ah, chan)) run_rtt_cal = true; diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index ce19c09fa8e8..8290eddaf0e3 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -586,7 +586,7 @@ static void ar9003_hw_init_bb(struct ath_hw *ah, ath9k_hw_synth_delay(ah, chan, synthDelay); } -static void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx) +void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx) { switch (rx) { case 0x5: diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 7f1a8e91c908..9d26fc56ca56 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -1066,6 +1066,7 @@ void ar9003_paprd_setup_gain_table(struct ath_hw *ah, int chain); int ar9003_paprd_init_table(struct ath_hw *ah); bool ar9003_paprd_is_done(struct ath_hw *ah); bool ar9003_is_paprd_enabled(struct ath_hw *ah); +void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx); /* Hardware family op attach helpers */ void ar5008_hw_attach_phy_ops(struct ath_hw *ah); -- cgit v1.2.3 From 24171dd92096fc370b195f3f6bdc0798855dc3f9 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 20 Jan 2013 21:55:21 +0100 Subject: ath9k_hw: fix chain swap setting when setting rx chainmask to 5 Chain swapping should only be enabled when the EEPROM chainmask is set to 5, regardless of what the runtime chainmask is. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_phy.c | 25 ++++++------------------- 1 file changed, 6 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index 8290eddaf0e3..3afc24bde6d6 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -588,30 +588,17 @@ static void ar9003_hw_init_bb(struct ath_hw *ah, void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx) { - switch (rx) { - case 0x5: + if (ah->caps.tx_chainmask == 5 || ah->caps.rx_chainmask == 5) REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP, AR_PHY_SWAP_ALT_CHAIN); - case 0x3: - case 0x1: - case 0x2: - case 0x7: - REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx); - REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx); - break; - default: - break; - } + + REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx); + REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx); if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && (tx == 0x7)) - REG_WRITE(ah, AR_SELFGEN_MASK, 0x3); - else - REG_WRITE(ah, AR_SELFGEN_MASK, tx); + tx = 3; - if (tx == 0x5) { - REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP, - AR_PHY_SWAP_ALT_CHAIN); - } + REG_WRITE(ah, AR_SELFGEN_MASK, tx); } /* -- cgit v1.2.3 From fea92cbf0850d788683827990670d3968f893327 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 20 Jan 2013 21:55:22 +0100 Subject: ath9k: allow setting arbitrary antenna masks on AR9003+ Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 3796e65c26f1..dd91f8fdc01c 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1826,6 +1826,9 @@ static u32 fill_chainmask(u32 cap, u32 new) static bool validate_antenna_mask(struct ath_hw *ah, u32 val) { + if (AR_SREV_9300_20_OR_LATER(ah)) + return true; + switch (val & 0x7) { case 0x1: case 0x3: -- cgit v1.2.3 From 83f0c6d1f502bd75bb4a9e31e8d64e59c6894ad1 Mon Sep 17 00:00:00 2001 From: Avinash Patil Date: Mon, 21 Jan 2013 21:04:10 -0800 Subject: mwifiex: fix typo in PCIe adapter NULL check Add missing "!" as we are supposed to check "!card->adapter" in PCIe suspend handler. Cc: "3.2+" Signed-off-by: Avinash Patil Signed-off-by: Bing Zhao Reviewed-by: Sergey V. Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/pcie.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c index 13fbc4eb1595..b879e1338a54 100644 --- a/drivers/net/wireless/mwifiex/pcie.c +++ b/drivers/net/wireless/mwifiex/pcie.c @@ -161,7 +161,7 @@ static int mwifiex_pcie_suspend(struct pci_dev *pdev, pm_message_t state) if (pdev) { card = (struct pcie_service_card *) pci_get_drvdata(pdev); - if (!card || card->adapter) { + if (!card || !card->adapter) { pr_err("Card or adapter structure is not valid\n"); return 0; } -- cgit v1.2.3 From 1c8c38c588ea91f8deeae21284840459d1bb58e3 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 20 Jan 2013 16:11:20 +0000 Subject: drm/i915: Disable AsyncFlip performance optimisations This is a required workarounds for all products, especially on gen6+ where it causes the command streamer to fail to parse instructions following a WAIT_FOR_EVENT. We use WAIT_FOR_EVENT for synchronising between the GPU and the display engines, and so this bit being unset may cause hangs. References: https://bugzilla.kernel.org/show_bug.cgi?id=52311 Signed-off-by: Chris Wilson Cc: stable@vger.kernel.org Reviewed-by: Imre Deak Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_ringbuffer.c | 19 +++++++++++++------ 2 files changed, 14 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index b401788e1791..59afb7eb6db6 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -533,6 +533,7 @@ #define MI_MODE 0x0209c # define VS_TIMER_DISPATCH (1 << 6) # define MI_FLUSH_ENABLE (1 << 12) +# define ASYNC_FLIP_PERF_DISABLE (1 << 14) #define GEN6_GT_MODE 0x20d0 #define GEN6_GT_MODE_HI (1 << 9) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index ae253e04c391..1f46a8bf2b05 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -505,13 +505,20 @@ static int init_render_ring(struct intel_ring_buffer *ring) struct drm_i915_private *dev_priv = dev->dev_private; int ret = init_ring_common(ring); - if (INTEL_INFO(dev)->gen > 3) { + if (INTEL_INFO(dev)->gen > 3) I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(VS_TIMER_DISPATCH)); - if (IS_GEN7(dev)) - I915_WRITE(GFX_MODE_GEN7, - _MASKED_BIT_DISABLE(GFX_TLB_INVALIDATE_ALWAYS) | - _MASKED_BIT_ENABLE(GFX_REPLAY_MODE)); - } + + /* We need to disable the AsyncFlip performance optimisations in order + * to use MI_WAIT_FOR_EVENT within the CS. It should already be + * programmed to '1' on all products. + */ + if (INTEL_INFO(dev)->gen >= 6) + I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(ASYNC_FLIP_PERF_DISABLE)); + + if (IS_GEN7(dev)) + I915_WRITE(GFX_MODE_GEN7, + _MASKED_BIT_DISABLE(GFX_TLB_INVALIDATE_ALWAYS) | + _MASKED_BIT_ENABLE(GFX_REPLAY_MODE)); if (INTEL_INFO(dev)->gen >= 5) { ret = init_pipe_control(ring); -- cgit v1.2.3 From f05bb0c7b624252a5e768287e340e8e45df96e42 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 20 Jan 2013 16:33:32 +0000 Subject: drm/i915: GFX_MODE Flush TLB Invalidate Mode must be '1' for scanline waits On SNB, if bit 13 of GFX_MODE, Flush TLB Invalidate Mode, is not set to 1, the hardware can not program the scanline values. Those scanline values then control when the signal is sent from the display engine to the render ring for MI_WAIT_FOR_EVENTs. Note setting this bit means that TLB invalidations must be performed explicitly through the appropriate bits being set in PIPE_CONTROL. References: https://bugzilla.kernel.org/show_bug.cgi?id=52311 Signed-off-by: Chris Wilson Cc: stable@vger.kernel.org Reviewed-by: Ben Widawsky Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_ringbuffer.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 1f46a8bf2b05..42ff97d667d2 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -515,6 +515,11 @@ static int init_render_ring(struct intel_ring_buffer *ring) if (INTEL_INFO(dev)->gen >= 6) I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(ASYNC_FLIP_PERF_DISABLE)); + /* Required for the hardware to program scanline values for waiting */ + if (INTEL_INFO(dev)->gen == 6) + I915_WRITE(GFX_MODE, + _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_ALWAYS)); + if (IS_GEN7(dev)) I915_WRITE(GFX_MODE_GEN7, _MASKED_BIT_DISABLE(GFX_TLB_INVALIDATE_ALWAYS) | -- cgit v1.2.3 From 9452618e7462181ed9755236803b6719298a13ce Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 20 Jan 2013 23:50:13 +0100 Subject: iommu/intel: disable DMAR for g4x integrated gfx DMAR support on g4x/gm45 integrated gpus seems to be totally busted. So don't bother, but instead disable it by default to allow distros to unconditionally enable DMAR support. v2: Actually wire up the right quirk entry, spotted by Adam Jackson. Note that according to intel marketing materials only g45 and gm45 support DMAR/VT-d. So we have reports for all relevant gen4 pci ids by now. Still, keep all the other gen4 ids in the quirk table in case the marketing stuff confused me again, which would not be the first time. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=51921 Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=538163 Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=538163 Cc: Adam Jackson Cc: David Woodhouse Cc: stable@vger.kernel.org Acked-By: David Woodhouse Tested-by: stathis Tested-by: Mihai Moldovan Signed-off-by: Daniel Vetter --- drivers/iommu/intel-iommu.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index b9d091157884..eca28014ef3e 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4234,6 +4234,21 @@ static struct iommu_ops intel_iommu_ops = { .pgsize_bitmap = INTEL_IOMMU_PGSIZES, }; +static void quirk_iommu_g4x_gfx(struct pci_dev *dev) +{ + /* G4x/GM45 integrated gfx dmar support is totally busted. */ + printk(KERN_INFO "DMAR: Disabling IOMMU for graphics on this chipset\n"); + dmar_map_gfx = 0; +} + +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2a40, quirk_iommu_g4x_gfx); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e00, quirk_iommu_g4x_gfx); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e10, quirk_iommu_g4x_gfx); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e20, quirk_iommu_g4x_gfx); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e30, quirk_iommu_g4x_gfx); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e40, quirk_iommu_g4x_gfx); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e90, quirk_iommu_g4x_gfx); + static void quirk_iommu_rwbf(struct pci_dev *dev) { /* @@ -4242,12 +4257,6 @@ static void quirk_iommu_rwbf(struct pci_dev *dev) */ printk(KERN_INFO "DMAR: Forcing write-buffer flush capability\n"); rwbf_quirk = 1; - - /* https://bugzilla.redhat.com/show_bug.cgi?id=538163 */ - if (dev->revision == 0x07) { - printk(KERN_INFO "DMAR: Disabling IOMMU for graphics on this chipset\n"); - dmar_map_gfx = 0; - } } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2a40, quirk_iommu_rwbf); -- cgit v1.2.3 From 4518f611ba21ba165ea3714055938a8984a44ff9 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 23 Jan 2013 16:16:35 +0100 Subject: drm/i915: dump UTS_RELEASE into the error_state Useful for statistics or on overflowing bug reports to keep things all lined up. Reviewed-by: Chris Wilson Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_debugfs.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 7944d301518a..9d4a2c2adf0e 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include "intel_drv.h" #include "intel_ringbuffer.h" @@ -690,6 +691,7 @@ static int i915_error_state(struct seq_file *m, void *unused) seq_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec, error->time.tv_usec); + seq_printf(m, "Kernel: " UTS_RELEASE); seq_printf(m, "PCI ID: 0x%04x\n", dev->pci_device); seq_printf(m, "EIR: 0x%08x\n", error->eir); seq_printf(m, "IER: 0x%08x\n", error->ier); -- cgit v1.2.3 From 844e88f04410cc4e85615db519c1d44089333c4f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Wed, 23 Jan 2013 00:57:02 +0000 Subject: net: cdc_mbim: send ZLP only for the specific buggy device MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reverting 328d7b8 and instead adding an exception for the Sierra Wireless MC7710. commit 328d7b8 (net: cdc_mbim: send ZLP after max sized NTBs) added a workaround for an issue observed on one specific device. Concerns were raised that this workaround adds a performance penalty to all devices based on questionable, if not buggy, behaviour of a single device: "If you add ZLP for NTBs of dwNtbOutMaxSize, you are heavily affecting CPU load, increasing interrupt load by factor of 2 in high load traffic scenario and possibly decreasing throughput for all other devices which behaves correctly." "The idea of NCM was to avoid extra ZLPs. If your transfer is exactly dwNtbOutMaxSize, it's known, you can submit such request on the receiver side and you do not need any EOT indicatation, so the frametime can be used for useful data." Adding a device specific exception to prevent the workaround from affecting well behaved devices. The assumption here is that needing a ZLP is truly an *exception*. We do not yet have enough data to verify this. The generic workaround in commit 328d7b8 should be considered acceptable despite the performance penalty if the exception list becomes a maintainance hassle. Cc: Alexey ORISHKO Cc: Yauheni Kaliuta Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/cdc_mbim.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'drivers') diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c index 3a5673aa1c37..248d2dc765a5 100644 --- a/drivers/net/usb/cdc_mbim.c +++ b/drivers/net/usb/cdc_mbim.c @@ -365,6 +365,21 @@ err: } static const struct driver_info cdc_mbim_info = { + .description = "CDC MBIM", + .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN, + .bind = cdc_mbim_bind, + .unbind = cdc_mbim_unbind, + .manage_power = cdc_mbim_manage_power, + .rx_fixup = cdc_mbim_rx_fixup, + .tx_fixup = cdc_mbim_tx_fixup, +}; + +/* MBIM and NCM devices should not need a ZLP after NTBs with + * dwNtbOutMaxSize length. This driver_info is for the exceptional + * devices requiring it anyway, allowing them to be supported without + * forcing the performance penalty on all the sane devices. + */ +static const struct driver_info cdc_mbim_info_zlp = { .description = "CDC MBIM", .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN | FLAG_SEND_ZLP, .bind = cdc_mbim_bind, @@ -385,6 +400,10 @@ static const struct usb_device_id mbim_devs[] = { { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&cdc_mbim_info, }, + /* Sierra Wireless MC7710 need ZLPs */ + { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x68a2, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&cdc_mbim_info_zlp, + }, { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&cdc_mbim_info, }, -- cgit v1.2.3 From edfb6a148ce62e5e19354a1dcd9a34e00815c2a1 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Wed, 23 Jan 2013 03:59:12 +0000 Subject: tuntap: reduce memory using of queues A MAX_TAP_QUEUES(1024) queues of tuntap device is always allocated unconditionally even userspace only requires a single queue device. This is unnecessary and will lead a very high order of page allocation when has a high possibility to fail. Solving this by creating a one queue net device when userspace only use one queue and also reduce MAX_TAP_QUEUES to DEFAULT_MAX_NUM_RSS_QUEUES which can guarantee the success of the allocation. Reported-by: Dirk Hohndel Cc: Eric Dumazet Cc: David Woodhouse Cc: Michael S. Tsirkin Signed-off-by: Jason Wang Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller --- drivers/net/tun.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/tun.c b/drivers/net/tun.c index c81680dc10eb..8939d2117de2 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -109,11 +109,10 @@ struct tap_filter { unsigned char addr[FLT_EXACT_COUNT][ETH_ALEN]; }; -/* 1024 is probably a high enough limit: modern hypervisors seem to support on - * the order of 100-200 CPUs so this leaves us some breathing space if we want - * to match a queue per guest CPU. - */ -#define MAX_TAP_QUEUES 1024 +/* DEFAULT_MAX_NUM_RSS_QUEUES were choosed to let the rx/tx queues allocated for + * the netdevice to be fit in one page. So we can make sure the success of + * memory allocation. TODO: increase the limit. */ +#define MAX_TAP_QUEUES DEFAULT_MAX_NUM_RSS_QUEUES #define TUN_FLOW_EXPIRE (3 * HZ) @@ -1583,6 +1582,8 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) else { char *name; unsigned long flags = 0; + int queues = ifr->ifr_flags & IFF_MULTI_QUEUE ? + MAX_TAP_QUEUES : 1; if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) return -EPERM; @@ -1606,8 +1607,8 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) name = ifr->ifr_name; dev = alloc_netdev_mqs(sizeof(struct tun_struct), name, - tun_setup, - MAX_TAP_QUEUES, MAX_TAP_QUEUES); + tun_setup, queues, queues); + if (!dev) return -ENOMEM; -- cgit v1.2.3 From b8732fb7f8920e2f6216d2b67faf8b0b0d67ca81 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Wed, 23 Jan 2013 03:59:13 +0000 Subject: tuntap: limit the number of flow caches We create new flow caches when a new flow is identified by tuntap, This may lead some issues: - userspace may produce a huge amount of short live flows to exhaust host memory - the unlimited number of flow caches may produce a long list which increase the time in the linear searching Solve this by introducing a limit of total number of flow caches. Cc: Stephen Hemminger Signed-off-by: Jason Wang Signed-off-by: David S. Miller --- drivers/net/tun.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 8939d2117de2..cc09b67c23bc 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -113,6 +113,7 @@ struct tap_filter { * the netdevice to be fit in one page. So we can make sure the success of * memory allocation. TODO: increase the limit. */ #define MAX_TAP_QUEUES DEFAULT_MAX_NUM_RSS_QUEUES +#define MAX_TAP_FLOWS 4096 #define TUN_FLOW_EXPIRE (3 * HZ) @@ -185,6 +186,7 @@ struct tun_struct { unsigned int numdisabled; struct list_head disabled; void *security; + u32 flow_count; }; static inline u32 tun_hashfn(u32 rxhash) @@ -218,6 +220,7 @@ static struct tun_flow_entry *tun_flow_create(struct tun_struct *tun, e->queue_index = queue_index; e->tun = tun; hlist_add_head_rcu(&e->hash_link, head); + ++tun->flow_count; } return e; } @@ -228,6 +231,7 @@ static void tun_flow_delete(struct tun_struct *tun, struct tun_flow_entry *e) e->rxhash, e->queue_index); hlist_del_rcu(&e->hash_link); kfree_rcu(e, rcu); + --tun->flow_count; } static void tun_flow_flush(struct tun_struct *tun) @@ -317,7 +321,8 @@ static void tun_flow_update(struct tun_struct *tun, u32 rxhash, e->updated = jiffies; } else { spin_lock_bh(&tun->lock); - if (!tun_flow_find(head, rxhash)) + if (!tun_flow_find(head, rxhash) && + tun->flow_count < MAX_TAP_FLOWS) tun_flow_create(tun, head, rxhash, queue_index); if (!timer_pending(&tun->flow_gc_timer)) -- cgit v1.2.3 From e521a29014794d139cca46396d1af8faf1295a26 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Mon, 21 Jan 2013 15:50:03 -0500 Subject: drm/radeon: fix cursor corruption on DCE6 and newer Aruba and newer gpu does not need the avivo cursor work around, quite the opposite this work around lead to corruption. agd5f: check DCE6 rather than ARUBA since the issue is DCE version specific rather than family specific. Signed-off-by: Jerome Glisse Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_cursor.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c index ad6df625e8b8..0d67674b64b1 100644 --- a/drivers/gpu/drm/radeon/radeon_cursor.c +++ b/drivers/gpu/drm/radeon/radeon_cursor.c @@ -241,7 +241,8 @@ int radeon_crtc_cursor_move(struct drm_crtc *crtc, y = 0; } - if (ASIC_IS_AVIVO(rdev)) { + /* fixed on DCE6 and newer */ + if (ASIC_IS_AVIVO(rdev) && !ASIC_IS_DCE6(rdev)) { int i = 0; struct drm_crtc *crtc_p; -- cgit v1.2.3 From b2f4b03f8a378cd626d2ea67d19e7470c050a098 Mon Sep 17 00:00:00 2001 From: xueminsu Date: Tue, 22 Jan 2013 22:16:53 +0800 Subject: radeon_display: Use pointer return error codes drm_mode_addfb() expects fb_create return error code instead of NULL. Signed-off-by: xueminsu Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 1da2386d7cf7..ff3def784619 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -1122,7 +1122,7 @@ radeon_user_framebuffer_create(struct drm_device *dev, if (ret) { kfree(radeon_fb); drm_gem_object_unreference_unlocked(obj); - return NULL; + return ERR_PTR(ret); } return &radeon_fb->base; -- cgit v1.2.3 From 5d0feaff230c0abfe4a112e6f09f096ed99e0b2d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Timo=20Ter=C3=A4s?= Date: Mon, 21 Jan 2013 22:30:35 +0000 Subject: r8169: remove the obsolete and incorrect AMD workaround MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This was introduced in commit 6dccd16 "r8169: merge with version 6.001.00 of Realtek's r8169 driver". I did not find the version 6.001.00 online, but in 6.002.00 or any later r8169 from Realtek this hunk is no longer present. Also commit 05af214 "r8169: fix Ethernet Hangup for RTL8110SC rev d" claims to have fixed this issue otherwise. The magic compare mask of 0xfffe000 is dubious as it masks parts of the Reserved part, and parts of the VLAN tag. But this does not make much sense as the VLAN tag parts are perfectly valid there. In matter of fact this seems to be triggered with any VLAN tagged packet as RxVlanTag bit is matched. I would suspect 0xfffe0000 was intended to test reserved part only. Finally, this hunk is evil as it can cause more packets to be handled than what was NAPI quota causing net/core/dev.c: net_rx_action(): WARN_ON_ONCE(work > weight) to trigger, and mess up the NAPI state causing device to hang. As result, any system using VLANs and having high receive traffic (so that NAPI poll budget limits rtl_rx) would result in device hang. Signed-off-by: Timo Teräs Acked-by: Francois Romieu Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index ed96f309bca8..c28bc318cec6 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -6111,13 +6111,6 @@ process_pkt: tp->rx_stats.bytes += pkt_size; u64_stats_update_end(&tp->rx_stats.syncp); } - - /* Work around for AMD plateform. */ - if ((desc->opts2 & cpu_to_le32(0xfffe000)) && - (tp->mac_version == RTL_GIGA_MAC_VER_05)) { - desc->opts2 = 0; - cur_rx++; - } } count = cur_rx - tp->cur_rx; -- cgit v1.2.3 From 1da80cfa8727abf404fcee44d04743febea54069 Mon Sep 17 00:00:00 2001 From: Ilija Hadzic Date: Wed, 23 Jan 2013 13:59:05 -0500 Subject: drm/radeon: fix a rare case of double kfree If one (but not both) allocations of p->chunks[].kpage[] in radeon_cs_parser_init fail, the error path will free the successfully allocated page, but leave a stale pointer value in the kpage[] field. This will later cause a double-free when radeon_cs_parser_fini is called. This patch fixes the issue by forcing both pointers to NULL after kfree in the error path. The circumstances under which the problem happens are very rare. The card must be AGP and the system must run out of kmalloc area just at the right time so that one allocation succeeds, while the other fails. Signed-off-by: Ilija Hadzic Cc: Herton Ronaldo Krzesinski Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_cs.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 469661fd1903..5407459e56d2 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -286,6 +286,8 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) p->chunks[p->chunk_ib_idx].kpage[1] == NULL) { kfree(p->chunks[p->chunk_ib_idx].kpage[0]); kfree(p->chunks[p->chunk_ib_idx].kpage[1]); + p->chunks[p->chunk_ib_idx].kpage[0] = NULL; + p->chunks[p->chunk_ib_idx].kpage[1] = NULL; return -ENOMEM; } } -- cgit v1.2.3 From 55ebbb59c1c6eb1b040f62b8c4ae0b724de6e55a Mon Sep 17 00:00:00 2001 From: Jonathan Brassow Date: Tue, 22 Jan 2013 21:42:18 -0600 Subject: DM-RAID: Fix RAID10's check for sufficient redundancy Before attempting to activate a RAID array, it is checked for sufficient redundancy. That is, we make sure that there are not too many failed devices - or devices specified for rebuild - to undermine our ability to activate the array. The current code performs this check twice - once to ensure there were not too many devices specified for rebuild by the user ('validate_rebuild_devices') and again after possibly experiencing a failure to read the superblock ('analyse_superblocks'). Neither of these checks are sufficient. The first check is done properly but with insufficient information about the possible failure state of the devices to make a good determination if the array can be activated. The second check is simply done wrong in the case of RAID10 because it doesn't account for the independence of the stripes (i.e. mirror sets). The solution is to use the properly written check ('validate_rebuild_devices'), but perform the check after the superblocks have been read and we know which devices have failed. This gives us one check instead of two and performs it in a location where it can be done right. Only RAID10 was affected and it was affected in the following ways: - the code did not properly catch the condition where a user specified a device for rebuild that already had a failed device in the same mirror set. (This condition would, however, be caught at a deeper level in MD.) - the code triggers a false positive and denies activation when devices in independent mirror sets have failed - counting the failures as though they were all in the same set. The most likely place this error was introduced (or this patch should have been included) is in commit 4ec1e369 - first introduced in v3.7-rc1. Consequently this fix should also go in v3.7.y, however there is a small conflict on the .version in raid_target, so I'll submit a separate patch to -stable. Cc: stable@vger.kernel.org Signed-off-by: Jonathan Brassow Signed-off-by: NeilBrown --- drivers/md/dm-raid.c | 101 +++++++++++++++++++-------------------------------- 1 file changed, 37 insertions(+), 64 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 3d8984edeff7..9e58dbd8d8cb 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -340,24 +340,22 @@ static int validate_region_size(struct raid_set *rs, unsigned long region_size) } /* - * validate_rebuild_devices + * validate_raid_redundancy * @rs * - * Determine if the devices specified for rebuild can result in a valid - * usable array that is capable of rebuilding the given devices. + * Determine if there are enough devices in the array that haven't + * failed (or are being rebuilt) to form a usable array. * * Returns: 0 on success, -EINVAL on failure. */ -static int validate_rebuild_devices(struct raid_set *rs) +static int validate_raid_redundancy(struct raid_set *rs) { unsigned i, rebuild_cnt = 0; unsigned rebuilds_per_group, copies, d; - if (!(rs->print_flags & DMPF_REBUILD)) - return 0; - for (i = 0; i < rs->md.raid_disks; i++) - if (!test_bit(In_sync, &rs->dev[i].rdev.flags)) + if (!test_bit(In_sync, &rs->dev[i].rdev.flags) || + !rs->dev[i].rdev.sb_page) rebuild_cnt++; switch (rs->raid_type->level) { @@ -393,27 +391,24 @@ static int validate_rebuild_devices(struct raid_set *rs) * A A B B C * C D D E E */ - rebuilds_per_group = 0; for (i = 0; i < rs->md.raid_disks * copies; i++) { + if (!(i % copies)) + rebuilds_per_group = 0; d = i % rs->md.raid_disks; - if (!test_bit(In_sync, &rs->dev[d].rdev.flags) && + if ((!rs->dev[d].rdev.sb_page || + !test_bit(In_sync, &rs->dev[d].rdev.flags)) && (++rebuilds_per_group >= copies)) goto too_many; - if (!((i + 1) % copies)) - rebuilds_per_group = 0; } break; default: - DMERR("The rebuild parameter is not supported for %s", - rs->raid_type->name); - rs->ti->error = "Rebuild not supported for this RAID type"; - return -EINVAL; + if (rebuild_cnt) + return -EINVAL; } return 0; too_many: - rs->ti->error = "Too many rebuild devices specified"; return -EINVAL; } @@ -664,9 +659,6 @@ static int parse_raid_params(struct raid_set *rs, char **argv, } rs->md.dev_sectors = sectors_per_dev; - if (validate_rebuild_devices(rs)) - return -EINVAL; - /* Assume there are no metadata devices until the drives are parsed */ rs->md.persistent = 0; rs->md.external = 1; @@ -995,28 +987,10 @@ static int super_validate(struct mddev *mddev, struct md_rdev *rdev) static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs) { int ret; - unsigned redundancy = 0; struct raid_dev *dev; struct md_rdev *rdev, *tmp, *freshest; struct mddev *mddev = &rs->md; - switch (rs->raid_type->level) { - case 1: - redundancy = rs->md.raid_disks - 1; - break; - case 4: - case 5: - case 6: - redundancy = rs->raid_type->parity_devs; - break; - case 10: - redundancy = raid10_md_layout_to_copies(mddev->layout) - 1; - break; - default: - ti->error = "Unknown RAID type"; - return -EINVAL; - } - freshest = NULL; rdev_for_each_safe(rdev, tmp, mddev) { /* @@ -1045,44 +1019,43 @@ static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs) break; default: dev = container_of(rdev, struct raid_dev, rdev); - if (redundancy--) { - if (dev->meta_dev) - dm_put_device(ti, dev->meta_dev); - - dev->meta_dev = NULL; - rdev->meta_bdev = NULL; + if (dev->meta_dev) + dm_put_device(ti, dev->meta_dev); - if (rdev->sb_page) - put_page(rdev->sb_page); + dev->meta_dev = NULL; + rdev->meta_bdev = NULL; - rdev->sb_page = NULL; + if (rdev->sb_page) + put_page(rdev->sb_page); - rdev->sb_loaded = 0; + rdev->sb_page = NULL; - /* - * We might be able to salvage the data device - * even though the meta device has failed. For - * now, we behave as though '- -' had been - * set for this device in the table. - */ - if (dev->data_dev) - dm_put_device(ti, dev->data_dev); + rdev->sb_loaded = 0; - dev->data_dev = NULL; - rdev->bdev = NULL; + /* + * We might be able to salvage the data device + * even though the meta device has failed. For + * now, we behave as though '- -' had been + * set for this device in the table. + */ + if (dev->data_dev) + dm_put_device(ti, dev->data_dev); - list_del(&rdev->same_set); + dev->data_dev = NULL; + rdev->bdev = NULL; - continue; - } - ti->error = "Failed to load superblock"; - return ret; + list_del(&rdev->same_set); } } if (!freshest) return 0; + if (validate_raid_redundancy(rs)) { + rs->ti->error = "Insufficient redundancy to activate array"; + return -EINVAL; + } + /* * Validation of the freshest device provides the source of * validation for the remaining devices. @@ -1432,7 +1405,7 @@ static void raid_resume(struct dm_target *ti) static struct target_type raid_target = { .name = "raid", - .version = {1, 4, 0}, + .version = {1, 4, 1}, .module = THIS_MODULE, .ctr = raid_ctr, .dtr = raid_dtr, -- cgit v1.2.3 From b3dfcb207e550dffb8680cab7afaf6b4fb6eae33 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michel=20D=C3=A4nzer?= Date: Thu, 24 Jan 2013 19:02:01 +0100 Subject: drm/radeon: Enable DMA_IB_SWAP_ENABLE on big endian hosts. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes GPU hang during DMA ring IB test. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59672 Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/ni.c | 8 ++++++-- drivers/gpu/drm/radeon/r600.c | 8 ++++++-- 2 files changed, 12 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 59acabb45c9b..835992d8d067 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -1216,7 +1216,7 @@ void cayman_dma_stop(struct radeon_device *rdev) int cayman_dma_resume(struct radeon_device *rdev) { struct radeon_ring *ring; - u32 rb_cntl, dma_cntl; + u32 rb_cntl, dma_cntl, ib_cntl; u32 rb_bufsz; u32 reg_offset, wb_offset; int i, r; @@ -1265,7 +1265,11 @@ int cayman_dma_resume(struct radeon_device *rdev) WREG32(DMA_RB_BASE + reg_offset, ring->gpu_addr >> 8); /* enable DMA IBs */ - WREG32(DMA_IB_CNTL + reg_offset, DMA_IB_ENABLE | CMD_VMID_FORCE); + ib_cntl = DMA_IB_ENABLE | CMD_VMID_FORCE; +#ifdef __BIG_ENDIAN + ib_cntl |= DMA_IB_SWAP_ENABLE; +#endif + WREG32(DMA_IB_CNTL + reg_offset, ib_cntl); dma_cntl = RREG32(DMA_CNTL + reg_offset); dma_cntl &= ~CTXEMPTY_INT_ENABLE; diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 3cb9d6089373..bc2540b17c5e 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -2313,7 +2313,7 @@ void r600_dma_stop(struct radeon_device *rdev) int r600_dma_resume(struct radeon_device *rdev) { struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX]; - u32 rb_cntl, dma_cntl; + u32 rb_cntl, dma_cntl, ib_cntl; u32 rb_bufsz; int r; @@ -2353,7 +2353,11 @@ int r600_dma_resume(struct radeon_device *rdev) WREG32(DMA_RB_BASE, ring->gpu_addr >> 8); /* enable DMA IBs */ - WREG32(DMA_IB_CNTL, DMA_IB_ENABLE); + ib_cntl = DMA_IB_ENABLE; +#ifdef __BIG_ENDIAN + ib_cntl |= DMA_IB_SWAP_ENABLE; +#endif + WREG32(DMA_IB_CNTL, ib_cntl); dma_cntl = RREG32(DMA_CNTL); dma_cntl &= ~CTXEMPTY_INT_ENABLE; -- cgit v1.2.3 From 9c08e4ba81a73862e15b3eb4e6ae2e11aaf4151b Mon Sep 17 00:00:00 2001 From: Rahul Sharma Date: Fri, 4 Jan 2013 07:59:11 -0500 Subject: drm/exynos: let drm handle edid allocations There's no need to allocate edid twice and do a memcpy when drm helpers exist to do just that. This patch cleans that interaction up, and doesn't keep the edid hanging around in the connector. v4: - removed error check for drm_mode_connector_update_edid_property which is expected to fail for Virtual Connectors like VIDI. Thanks to Seung-Woo Kim. v3: - removed MAX_EDID as it is not used anymore. v2: - changed vidi_get_edid callback inside vidi driver. Signed-off-by: Sean Paul Signed-off-by: Rahul Sharma Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_connector.c | 33 ++++++++++++--------------- drivers/gpu/drm/exynos/exynos_drm_drv.h | 4 ++-- drivers/gpu/drm/exynos/exynos_drm_hdmi.c | 9 ++++---- drivers/gpu/drm/exynos/exynos_drm_hdmi.h | 4 ++-- drivers/gpu/drm/exynos/exynos_drm_vidi.c | 19 ++++++++++----- drivers/gpu/drm/exynos/exynos_hdmi.c | 25 ++++++++------------ 6 files changed, 46 insertions(+), 48 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c index ab37437bad8a..4c5b6859c9ea 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_connector.c +++ b/drivers/gpu/drm/exynos/exynos_drm_connector.c @@ -18,7 +18,6 @@ #include "exynos_drm_drv.h" #include "exynos_drm_encoder.h" -#define MAX_EDID 256 #define to_exynos_connector(x) container_of(x, struct exynos_drm_connector,\ drm_connector) @@ -96,7 +95,9 @@ static int exynos_drm_connector_get_modes(struct drm_connector *connector) to_exynos_connector(connector); struct exynos_drm_manager *manager = exynos_connector->manager; struct exynos_drm_display_ops *display_ops = manager->display_ops; - unsigned int count; + struct edid *edid = NULL; + unsigned int count = 0; + int ret; DRM_DEBUG_KMS("%s\n", __FILE__); @@ -114,27 +115,21 @@ static int exynos_drm_connector_get_modes(struct drm_connector *connector) * because lcd panel has only one mode. */ if (display_ops->get_edid) { - int ret; - void *edid; - - edid = kzalloc(MAX_EDID, GFP_KERNEL); - if (!edid) { - DRM_ERROR("failed to allocate edid\n"); - return 0; + edid = display_ops->get_edid(manager->dev, connector); + if (IS_ERR_OR_NULL(edid)) { + ret = PTR_ERR(edid); + edid = NULL; + DRM_ERROR("Panel operation get_edid failed %d\n", ret); + goto out; } - ret = display_ops->get_edid(manager->dev, connector, - edid, MAX_EDID); - if (ret < 0) { - DRM_ERROR("failed to get edid data.\n"); - kfree(edid); - edid = NULL; - return 0; + count = drm_add_edid_modes(connector, edid); + if (count < 0) { + DRM_ERROR("Add edid modes failed %d\n", count); + goto out; } drm_mode_connector_update_edid_property(connector, edid); - count = drm_add_edid_modes(connector, edid); - kfree(edid); } else { struct exynos_drm_panel_info *panel; struct drm_display_mode *mode = drm_mode_create(connector->dev); @@ -161,6 +156,8 @@ static int exynos_drm_connector_get_modes(struct drm_connector *connector) count = 1; } +out: + kfree(edid); return count; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index b9e51bc09e81..4606fac7241a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -148,8 +148,8 @@ struct exynos_drm_overlay { struct exynos_drm_display_ops { enum exynos_drm_output_type type; bool (*is_connected)(struct device *dev); - int (*get_edid)(struct device *dev, struct drm_connector *connector, - u8 *edid, int len); + struct edid *(*get_edid)(struct device *dev, + struct drm_connector *connector); void *(*get_panel)(struct device *dev); int (*check_timing)(struct device *dev, void *timing); int (*power_on)(struct device *dev, int mode); diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c index 850e9950b7da..427d2dea9f07 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c @@ -108,18 +108,17 @@ static bool drm_hdmi_is_connected(struct device *dev) return false; } -static int drm_hdmi_get_edid(struct device *dev, - struct drm_connector *connector, u8 *edid, int len) +struct edid *drm_hdmi_get_edid(struct device *dev, + struct drm_connector *connector) { struct drm_hdmi_context *ctx = to_context(dev); DRM_DEBUG_KMS("%s\n", __FILE__); if (hdmi_ops && hdmi_ops->get_edid) - return hdmi_ops->get_edid(ctx->hdmi_ctx->ctx, connector, edid, - len); + return hdmi_ops->get_edid(ctx->hdmi_ctx->ctx, connector); - return 0; + return NULL; } static int drm_hdmi_check_timing(struct device *dev, void *timing) diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h index 784a7e9a766c..d80516fc9ed7 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h @@ -30,8 +30,8 @@ struct exynos_drm_hdmi_context { struct exynos_hdmi_ops { /* display */ bool (*is_connected)(void *ctx); - int (*get_edid)(void *ctx, struct drm_connector *connector, - u8 *edid, int len); + struct edid *(*get_edid)(void *ctx, + struct drm_connector *connector); int (*check_timing)(void *ctx, void *timing); int (*power_on)(void *ctx, int mode); diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index d0ca3c4e06c6..6d91000c56f9 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -98,10 +98,12 @@ static bool vidi_display_is_connected(struct device *dev) return ctx->connected ? true : false; } -static int vidi_get_edid(struct device *dev, struct drm_connector *connector, - u8 *edid, int len) +static struct edid *vidi_get_edid(struct device *dev, + struct drm_connector *connector) { struct vidi_context *ctx = get_vidi_context(dev); + struct edid *edid; + int edid_len; DRM_DEBUG_KMS("%s\n", __FILE__); @@ -111,13 +113,18 @@ static int vidi_get_edid(struct device *dev, struct drm_connector *connector, */ if (!ctx->raw_edid) { DRM_DEBUG_KMS("raw_edid is null.\n"); - return -EFAULT; + return ERR_PTR(-EFAULT); } - memcpy(edid, ctx->raw_edid, min((1 + ctx->raw_edid->extensions) - * EDID_LENGTH, len)); + edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH; + edid = kzalloc(edid_len, GFP_KERNEL); + if (!edid) { + DRM_DEBUG_KMS("failed to allocate edid\n"); + return ERR_PTR(-ENOMEM); + } - return 0; + memcpy(edid, ctx->raw_edid, edid_len); + return edid; } static void *vidi_get_panel(struct device *dev) diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 41ff79d8ac8e..24dbb7f7c290 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -1391,8 +1391,7 @@ static bool hdmi_is_connected(void *ctx) return hdata->hpd; } -static int hdmi_get_edid(void *ctx, struct drm_connector *connector, - u8 *edid, int len) +static struct edid *hdmi_get_edid(void *ctx, struct drm_connector *connector) { struct edid *raw_edid; struct hdmi_context *hdata = ctx; @@ -1400,22 +1399,18 @@ static int hdmi_get_edid(void *ctx, struct drm_connector *connector, DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); if (!hdata->ddc_port) - return -ENODEV; + return ERR_PTR(-ENODEV); raw_edid = drm_get_edid(connector, hdata->ddc_port->adapter); - if (raw_edid) { - hdata->dvi_mode = !drm_detect_hdmi_monitor(raw_edid); - memcpy(edid, raw_edid, min((1 + raw_edid->extensions) - * EDID_LENGTH, len)); - DRM_DEBUG_KMS("%s : width[%d] x height[%d]\n", - (hdata->dvi_mode ? "dvi monitor" : "hdmi monitor"), - raw_edid->width_cm, raw_edid->height_cm); - kfree(raw_edid); - } else { - return -ENODEV; - } + if (!raw_edid) + return ERR_PTR(-ENODEV); - return 0; + hdata->dvi_mode = !drm_detect_hdmi_monitor(raw_edid); + DRM_DEBUG_KMS("%s : width[%d] x height[%d]\n", + (hdata->dvi_mode ? "dvi monitor" : "hdmi monitor"), + raw_edid->width_cm, raw_edid->height_cm); + + return raw_edid; } static int hdmi_v13_check_timing(struct fb_videomode *check_timing) -- cgit v1.2.3 From e7808df1af8801cf4f2ac16be25db1b079b5da4c Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Thu, 10 Jan 2013 19:35:06 +0900 Subject: drm/exynos: added validation of edid for vidi connection If edid of vidi from user is invalid, size calculated from a number of cea extensions can be wrong. So, validation should be checked. Changelog v2: - just code cleanup . declare raw_edid only if vidi->connection is enabled. Signed-off-by: Seung-Woo Kim Signed-off-by: Kyungmin Park Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_vidi.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index 6d91000c56f9..13ccbd4bcfaa 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -521,7 +521,6 @@ int vidi_connection_ioctl(struct drm_device *drm_dev, void *data, struct exynos_drm_manager *manager; struct exynos_drm_display_ops *display_ops; struct drm_exynos_vidi_connection *vidi = data; - struct edid *raw_edid; int edid_len; DRM_DEBUG_KMS("%s\n", __FILE__); @@ -558,11 +557,11 @@ int vidi_connection_ioctl(struct drm_device *drm_dev, void *data, } if (vidi->connection) { - if (!vidi->edid) { - DRM_DEBUG_KMS("edid data is null.\n"); + struct edid *raw_edid = (struct edid *)(uint32_t)vidi->edid; + if (!drm_edid_is_valid(raw_edid)) { + DRM_DEBUG_KMS("edid data is invalid.\n"); return -EINVAL; } - raw_edid = (struct edid *)(uint32_t)vidi->edid; edid_len = (1 + raw_edid->extensions) * EDID_LENGTH; ctx->raw_edid = kzalloc(edid_len, GFP_KERNEL); if (!ctx->raw_edid) { -- cgit v1.2.3 From 420ae1e2623af92e71437e403fd11de48e11551f Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Fri, 11 Jan 2013 13:38:28 +0900 Subject: drm/exynos: free sg object if dma_map_sg is failed This patch releases sgt's sg object allocated by sgt_alloc_table correctly. When exynos_gem_map_dma_buf was called by dma_buf_map_attachmemt(), the sgt's sg object was allocated by sg_alloc_tale() so if dma_map_sg() is failed, the sg object should be released. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_dmabuf.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c index 9df97714b6c0..693d4bca1518 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c @@ -110,6 +110,7 @@ static struct sg_table * nents = dma_map_sg(attach->dev, sgt->sgl, sgt->orig_nents, dir); if (!nents) { DRM_ERROR("failed to map sgl with iommu.\n"); + sg_free_table(sgt); sgt = ERR_PTR(-EIO); goto err_unlock; } -- cgit v1.2.3 From b8b5c139ba75cde517b3e5eb6e3e760c0824b238 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Fri, 11 Jan 2013 13:46:58 +0900 Subject: drm/exynos: consider DMA_NONE flag to dmabuf import This patch considers DMA_NONE flag for other drivers not using dma mapping framework with iommu such as 3d gpu driver or others. For example, there might be 3d gpu driver that has its own iommu hw unit and iommu table mapping mechnism. So in this case, the dmabuf buffer imported into this driver needs just only sg table to map the buffer with its own iommu table itself. So this patch makes dma_buf_map_attachment ignore dma_map_sg call and just return sg table containing pages if dma_data_direction is DMA_NONE. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_dmabuf.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c index 693d4bca1518..ba0a3aa78547 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c @@ -19,6 +19,7 @@ struct exynos_drm_dmabuf_attachment { struct sg_table sgt; enum dma_data_direction dir; + bool is_mapped; }; static int exynos_gem_attach_dma_buf(struct dma_buf *dmabuf, @@ -72,17 +73,10 @@ static struct sg_table * DRM_DEBUG_PRIME("%s\n", __FILE__); - if (WARN_ON(dir == DMA_NONE)) - return ERR_PTR(-EINVAL); - /* just return current sgt if already requested. */ - if (exynos_attach->dir == dir) + if (exynos_attach->dir == dir && exynos_attach->is_mapped) return &exynos_attach->sgt; - /* reattaching is not allowed. */ - if (WARN_ON(exynos_attach->dir != DMA_NONE)) - return ERR_PTR(-EBUSY); - buf = gem_obj->buffer; if (!buf) { DRM_ERROR("buffer is null.\n"); @@ -107,14 +101,17 @@ static struct sg_table * wr = sg_next(wr); } - nents = dma_map_sg(attach->dev, sgt->sgl, sgt->orig_nents, dir); - if (!nents) { - DRM_ERROR("failed to map sgl with iommu.\n"); - sg_free_table(sgt); - sgt = ERR_PTR(-EIO); - goto err_unlock; + if (dir != DMA_NONE) { + nents = dma_map_sg(attach->dev, sgt->sgl, sgt->orig_nents, dir); + if (!nents) { + DRM_ERROR("failed to map sgl with iommu.\n"); + sg_free_table(sgt); + sgt = ERR_PTR(-EIO); + goto err_unlock; + } } + exynos_attach->is_mapped = true; exynos_attach->dir = dir; attach->priv = exynos_attach; -- cgit v1.2.3 From b7848c7ad8ab77b1f71f0af4fe43b2bea0dab341 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 14 Jan 2013 12:29:09 +0530 Subject: drm/exynos: Make g2d_userptr_get_dma_addr static Fixes the following warning: drivers/gpu/drm/exynos/exynos_drm_g2d.c:327:12: warning: symbol 'g2d_userptr_get_dma_addr' was not declared. Should it be static? Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_g2d.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index 36c3905536a6..9a4c08e7453c 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c @@ -324,7 +324,7 @@ out: g2d_userptr = NULL; } -dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev, +static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev, unsigned long userptr, unsigned long size, struct drm_file *filp, -- cgit v1.2.3 From 0bc4a0aa377ec5e6e3bd2b8ac963a008d8e1401b Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 14 Jan 2013 12:29:10 +0530 Subject: drm/exynos: Make ipp_handle_cmd_work static Fixes the following warning: drivers/gpu/drm/exynos/exynos_drm_ipp.c:872:6: warning: symbol 'ipp_handle_cmd_work' was not declared. Should it be static? Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_ipp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c index 0bda96454a02..1a556354e92f 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c +++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c @@ -869,7 +869,7 @@ static void ipp_put_event(struct drm_exynos_ipp_cmd_node *c_node, } } -void ipp_handle_cmd_work(struct device *dev, +static void ipp_handle_cmd_work(struct device *dev, struct exynos_drm_ippdrv *ippdrv, struct drm_exynos_ipp_cmd_work *cmd_work, struct drm_exynos_ipp_cmd_node *c_node) -- cgit v1.2.3 From 09760ea34965a48d39e58607945e5e69edba01e6 Mon Sep 17 00:00:00 2001 From: Sean Paul Date: Mon, 14 Jan 2013 17:03:20 -0500 Subject: drm/exynos: Replace mdelay with usleep_range Replace the unnecessary atomic mdelay calls with usleep_range calls. Signed-off-by: Sean Paul Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_hdmi.c | 14 +++++++------- drivers/gpu/drm/exynos/exynos_mixer.c | 2 +- 2 files changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 24dbb7f7c290..b490afa781dc 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -1647,9 +1647,9 @@ static void hdmi_conf_reset(struct hdmi_context *hdata) /* resetting HDMI core */ hdmi_reg_writemask(hdata, reg, 0, HDMI_CORE_SW_RSTOUT); - mdelay(10); + usleep_range(10000, 12000); hdmi_reg_writemask(hdata, reg, ~0, HDMI_CORE_SW_RSTOUT); - mdelay(10); + usleep_range(10000, 12000); } static void hdmi_conf_init(struct hdmi_context *hdata) @@ -1774,7 +1774,7 @@ static void hdmi_v13_timing_apply(struct hdmi_context *hdata) u32 val = hdmi_reg_read(hdata, HDMI_V13_PHY_STATUS); if (val & HDMI_PHY_STATUS_READY) break; - mdelay(1); + usleep_range(1000, 2000); } /* steady state not achieved */ if (tries == 0) { @@ -1941,7 +1941,7 @@ static void hdmi_v14_timing_apply(struct hdmi_context *hdata) u32 val = hdmi_reg_read(hdata, HDMI_PHY_STATUS_0); if (val & HDMI_PHY_STATUS_READY) break; - mdelay(1); + usleep_range(1000, 2000); } /* steady state not achieved */ if (tries == 0) { @@ -1993,9 +1993,9 @@ static void hdmiphy_conf_reset(struct hdmi_context *hdata) /* reset hdmiphy */ hdmi_reg_writemask(hdata, reg, ~0, HDMI_PHY_SW_RSTOUT); - mdelay(10); + usleep_range(10000, 12000); hdmi_reg_writemask(hdata, reg, 0, HDMI_PHY_SW_RSTOUT); - mdelay(10); + usleep_range(10000, 12000); } static void hdmiphy_poweron(struct hdmi_context *hdata) @@ -2043,7 +2043,7 @@ static void hdmiphy_conf_apply(struct hdmi_context *hdata) return; } - mdelay(10); + usleep_range(10000, 12000); /* operation mode */ operation[0] = 0x1f; diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index c187ea33b748..1ff2d7a045b5 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -600,7 +600,7 @@ static void vp_win_reset(struct mixer_context *ctx) /* waiting until VP_SRESET_PROCESSING is 0 */ if (~vp_reg_read(res, VP_SRESET) & VP_SRESET_PROCESSING) break; - mdelay(10); + usleep_range(10000, 12000); } WARN(tries == 0, "failed to reset Video Processor\n"); } -- cgit v1.2.3 From 0315a902c0ca7f54f992fc8062158092ed57b062 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 14 Jan 2013 12:29:11 +0530 Subject: drm/exynos: Add missing static specifiers in exynos_drm_rotator.c Fixes the following warnings: drivers/gpu/drm/exynos/exynos_drm_rotator.c:737:24: warning: symbol 'rot_limit_tbl' was not declared. Should it be static? drivers/gpu/drm/exynos/exynos_drm_rotator.c:754:27: warning: symbol 'rotator_driver_ids' was not declared. Should it be static? Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_rotator.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c index e9e83ef688f0..f976e29def6e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c +++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c @@ -734,7 +734,7 @@ static int rotator_remove(struct platform_device *pdev) return 0; } -struct rot_limit_table rot_limit_tbl = { +static struct rot_limit_table rot_limit_tbl = { .ycbcr420_2p = { .min_w = 32, .min_h = 32, @@ -751,7 +751,7 @@ struct rot_limit_table rot_limit_tbl = { }, }; -struct platform_device_id rotator_driver_ids[] = { +static struct platform_device_id rotator_driver_ids[] = { { .name = "exynos-rot", .driver_data = (unsigned long)&rot_limit_tbl, -- cgit v1.2.3 From 77006a7ac8d0122a64512958e0a1e34d9e9f39a3 Mon Sep 17 00:00:00 2001 From: Sean Paul Date: Wed, 16 Jan 2013 10:17:20 -0500 Subject: drm/exynos: Remove "internal" interrupt handling Remove the "internal" interrupt handling since it's never invoked and remove "external" reference. This patch removes a bunch of dead code and clarifies how hotplugging is handled in the HDMI driver. Signed-off-by: Sean Paul Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_hdmi.c | 74 +++++++----------------------------- 1 file changed, 14 insertions(+), 60 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index b490afa781dc..41ba9dc7f5c7 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -98,8 +98,7 @@ struct hdmi_context { void __iomem *regs; void *parent_ctx; - int external_irq; - int internal_irq; + int irq; struct i2c_client *ddc_port; struct i2c_client *hdmiphy_port; @@ -1656,7 +1655,7 @@ static void hdmi_conf_init(struct hdmi_context *hdata) { struct hdmi_infoframe infoframe; - /* disable HPD interrupts */ + /* disable HPD interrupts from HDMI IP block, use GPIO instead */ hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL | HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG); @@ -2260,7 +2259,7 @@ static struct exynos_hdmi_ops hdmi_ops = { .dpms = hdmi_dpms, }; -static irqreturn_t hdmi_external_irq_thread(int irq, void *arg) +static irqreturn_t hdmi_irq_thread(int irq, void *arg) { struct exynos_drm_hdmi_context *ctx = arg; struct hdmi_context *hdata = ctx->ctx; @@ -2275,31 +2274,6 @@ static irqreturn_t hdmi_external_irq_thread(int irq, void *arg) return IRQ_HANDLED; } -static irqreturn_t hdmi_internal_irq_thread(int irq, void *arg) -{ - struct exynos_drm_hdmi_context *ctx = arg; - struct hdmi_context *hdata = ctx->ctx; - u32 intc_flag; - - intc_flag = hdmi_reg_read(hdata, HDMI_INTC_FLAG); - /* clearing flags for HPD plug/unplug */ - if (intc_flag & HDMI_INTC_FLAG_HPD_UNPLUG) { - DRM_DEBUG_KMS("unplugged\n"); - hdmi_reg_writemask(hdata, HDMI_INTC_FLAG, ~0, - HDMI_INTC_FLAG_HPD_UNPLUG); - } - if (intc_flag & HDMI_INTC_FLAG_HPD_PLUG) { - DRM_DEBUG_KMS("plugged\n"); - hdmi_reg_writemask(hdata, HDMI_INTC_FLAG, ~0, - HDMI_INTC_FLAG_HPD_PLUG); - } - - if (ctx->drm_dev) - drm_helper_hpd_irq_event(ctx->drm_dev); - - return IRQ_HANDLED; -} - static int hdmi_resources_init(struct hdmi_context *hdata) { struct device *dev = hdata->dev; @@ -2550,39 +2524,24 @@ static int hdmi_probe(struct platform_device *pdev) hdata->hdmiphy_port = hdmi_hdmiphy; - hdata->external_irq = gpio_to_irq(hdata->hpd_gpio); - if (hdata->external_irq < 0) { - DRM_ERROR("failed to get GPIO external irq\n"); - ret = hdata->external_irq; - goto err_hdmiphy; - } - - hdata->internal_irq = platform_get_irq(pdev, 0); - if (hdata->internal_irq < 0) { - DRM_ERROR("failed to get platform internal irq\n"); - ret = hdata->internal_irq; + hdata->irq = gpio_to_irq(hdata->hpd_gpio); + if (hdata->irq < 0) { + DRM_ERROR("failed to get GPIO irq\n"); + ret = hdata->irq; goto err_hdmiphy; } hdata->hpd = gpio_get_value(hdata->hpd_gpio); - ret = request_threaded_irq(hdata->external_irq, NULL, - hdmi_external_irq_thread, IRQF_TRIGGER_RISING | + ret = request_threaded_irq(hdata->irq, NULL, + hdmi_irq_thread, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - "hdmi_external", drm_hdmi_ctx); + "hdmi", drm_hdmi_ctx); if (ret) { - DRM_ERROR("failed to register hdmi external interrupt\n"); + DRM_ERROR("failed to register hdmi interrupt\n"); goto err_hdmiphy; } - ret = request_threaded_irq(hdata->internal_irq, NULL, - hdmi_internal_irq_thread, IRQF_ONESHOT, - "hdmi_internal", drm_hdmi_ctx); - if (ret) { - DRM_ERROR("failed to register hdmi internal interrupt\n"); - goto err_free_irq; - } - /* Attach HDMI Driver to common hdmi. */ exynos_hdmi_drv_attach(drm_hdmi_ctx); @@ -2593,8 +2552,6 @@ static int hdmi_probe(struct platform_device *pdev) return 0; -err_free_irq: - free_irq(hdata->external_irq, drm_hdmi_ctx); err_hdmiphy: i2c_del_driver(&hdmiphy_driver); err_ddc: @@ -2612,8 +2569,7 @@ static int hdmi_remove(struct platform_device *pdev) pm_runtime_disable(dev); - free_irq(hdata->internal_irq, hdata); - free_irq(hdata->external_irq, hdata); + free_irq(hdata->irq, hdata); /* hdmiphy i2c driver */ @@ -2632,8 +2588,7 @@ static int hdmi_suspend(struct device *dev) DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); - disable_irq(hdata->internal_irq); - disable_irq(hdata->external_irq); + disable_irq(hdata->irq); hdata->hpd = false; if (ctx->drm_dev) @@ -2658,8 +2613,7 @@ static int hdmi_resume(struct device *dev) hdata->hpd = gpio_get_value(hdata->hpd_gpio); - enable_irq(hdata->external_irq); - enable_irq(hdata->internal_irq); + enable_irq(hdata->irq); if (!pm_runtime_suspended(dev)) { DRM_DEBUG_KMS("%s : Already resumed\n", __func__); -- cgit v1.2.3 From 05523d563d3c019b3f33a0daa1e73aa075aa0161 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 21 Jan 2013 17:16:00 +0000 Subject: drm/exynos: don't include plat/gpio-cfg.h Patch 9eb3e9e6f3 "drm/exynos: add support for ARCH_MULTIPLATFORM" allowed building the exynos hdmi driver on non-samsung platforms, which unfortunately broke compilation in combination with 22c4f42897 "drm: exynos: hdmi: add support for exynos5 hdmi", which added an inclusion of the samsung-specific plat/gpio-cfg.h header file. Fortunately, that header file is not required any more here, so we can simply revert the inclusion in order to build the ARM allyesconfig again without getting this error: drivers/gpu/drm/exynos/exynos_hdmi.c:37:27: fatal error: plat/gpio-cfg.h: No such file or directory Signed-off-by: Arnd Bergmann Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_hdmi.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 41ba9dc7f5c7..32c04a696a59 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -34,7 +34,6 @@ #include #include #include -#include #include -- cgit v1.2.3 From 7cdc046d9e9d5e90da20dc13eac90061688544a2 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 21 Jan 2013 17:16:01 +0000 Subject: drm/exynos: fimd and ipp are broken on multiplatform While the exynos DRM support in principle can work on multiplatform, the FIMD and IPP sections of it both include the plat/map-base.h header file, which is not available on multiplatform. Rather than disabling the entire driver, we can just conditionally build these two parts. Without this patch, building allyesconfig results in: drivers/gpu/drm/exynos/exynos_drm_fimc.c:19:27: fatal error: plat/map-base.h: No such file or directory drivers/gpu/drm/exynos/exynos_drm_ipp.c:20:27: fatal error: plat/map-base.h: No such file or directory Signed-off-by: Arnd Bergmann Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index 1d1f1e5e33f0..046bcda36abe 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -24,7 +24,7 @@ config DRM_EXYNOS_DMABUF config DRM_EXYNOS_FIMD bool "Exynos DRM FIMD" - depends on DRM_EXYNOS && !FB_S3C + depends on DRM_EXYNOS && !FB_S3C && !ARCH_MULTIPLATFORM help Choose this option if you want to use Exynos FIMD for DRM. @@ -48,7 +48,7 @@ config DRM_EXYNOS_G2D config DRM_EXYNOS_IPP bool "Exynos DRM IPP" - depends on DRM_EXYNOS + depends on DRM_EXYNOS && !ARCH_MULTIPLATFORM help Choose this option if you want to use IPP feature for DRM. -- cgit v1.2.3 From 428982e70ad1a6dbd583d6fb4f896595dac382e1 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 21 Jan 2013 15:26:57 +0530 Subject: drm/exynos: Make 'drm_hdmi_get_edid' static Fixes the following warning: drivers/gpu/drm/exynos/exynos_drm_hdmi.c:111:13: warning: symbol 'drm_hdmi_get_edid' was not declared. Should it be static? Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_hdmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c index 427d2dea9f07..28644539b305 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c @@ -108,7 +108,7 @@ static bool drm_hdmi_is_connected(struct device *dev) return false; } -struct edid *drm_hdmi_get_edid(struct device *dev, +static struct edid *drm_hdmi_get_edid(struct device *dev, struct drm_connector *connector) { struct drm_hdmi_context *ctx = to_context(dev); -- cgit v1.2.3 From dda9012b2ad98f0ed124ea1f44b82f8b2288f697 Mon Sep 17 00:00:00 2001 From: Shirish S Date: Wed, 23 Jan 2013 22:03:18 -0500 Subject: drm/exynos: add check for the device power status V2: Add mutex protection, while read. The hdmi and mixer win_commit calls currently are not checking the status of IP before updating the respective registers, this patch adds this check. Signed-off-by: Shirish S Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_hdmi.c | 7 +++++++ drivers/gpu/drm/exynos/exynos_mixer.c | 7 +++++++ 2 files changed, 14 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 32c04a696a59..fbab3c468603 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -2163,6 +2163,13 @@ static void hdmi_commit(void *ctx) DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); + mutex_lock(&hdata->hdmi_mutex); + if (!hdata->powered) { + mutex_unlock(&hdata->hdmi_mutex); + return; + } + mutex_unlock(&hdata->hdmi_mutex); + hdmi_conf_apply(hdata); } diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 1ff2d7a045b5..c414584bfbae 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -776,6 +776,13 @@ static void mixer_win_commit(void *ctx, int win) DRM_DEBUG_KMS("[%d] %s, win: %d\n", __LINE__, __func__, win); + mutex_lock(&mixer_ctx->mixer_mutex); + if (!mixer_ctx->powered) { + mutex_unlock(&mixer_ctx->mixer_mutex); + return; + } + mutex_unlock(&mixer_ctx->mixer_mutex); + if (win > 1 && mixer_ctx->vp_enabled) vp_video_buffer(mixer_ctx, win); else -- cgit v1.2.3 From 7f46d0f81f2387807fa3e757d5d521cda8c23866 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 24 Jan 2013 10:29:26 -0500 Subject: regulators: db8500: Fix compile failure for drivers/regulator/dbx500-prcmu.c Building for the snowball board, I ran into this compile failure: CC drivers/regulator/dbx500-prcmu.o arm-test.git/drivers/regulator/dbx500-prcmu.c:119:11: error: 'THIS_MODULE' undeclared here (not in a function) make[3]: *** [drivers/regulator/dbx500-prcmu.o] Error 1 make[2]: *** [drivers/regulator] Error 2 Commit 38e968380 "regulators/db8500: split off shared dbx500 code" separated out the dbx500 code but did not copy over the required include to linux/module.h. Signed-off-by: Steven Rostedt Signed-off-by: Mark Brown --- drivers/regulator/dbx500-prcmu.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/regulator/dbx500-prcmu.c b/drivers/regulator/dbx500-prcmu.c index 261f3d2299bc..89bd2faaef8c 100644 --- a/drivers/regulator/dbx500-prcmu.c +++ b/drivers/regulator/dbx500-prcmu.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "dbx500-prcmu.h" -- cgit v1.2.3 From d4cbca9ef822e05d4b55e7d0f1cdfded7a472a56 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 25 Jan 2013 21:29:41 +0800 Subject: regulator: tps80031: Use IS_ERR to check return value of regulator_register() regulator_register() does not return NULL, it returns ERR_PTR on error. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps80031-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/tps80031-regulator.c b/drivers/regulator/tps80031-regulator.c index b15d711bc8c6..9019d0e7ecb6 100644 --- a/drivers/regulator/tps80031-regulator.c +++ b/drivers/regulator/tps80031-regulator.c @@ -728,7 +728,7 @@ static int tps80031_regulator_probe(struct platform_device *pdev) } } rdev = regulator_register(&ri->rinfo->desc, &config); - if (IS_ERR_OR_NULL(rdev)) { + if (IS_ERR(rdev)) { dev_err(&pdev->dev, "register regulator failed %s\n", ri->rinfo->desc.name); -- cgit v1.2.3 From 6ea45886865c1abb01bb861f7f6bdd5d0f398cb3 Mon Sep 17 00:00:00 2001 From: Olivier Sobrie Date: Fri, 18 Jan 2013 09:32:39 +0100 Subject: can: c_can: fix invalid error codes Errors in CAN protocol (location) are reported in data[3] of the can frame instead of data[2]. Cc: linux-stable Cc: Bhupesh Sharma Signed-off-by: Olivier Sobrie Signed-off-by: Marc Kleine-Budde --- drivers/net/can/c_can/c_can.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index 5233b8f58d77..58607f196c9e 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -960,7 +960,7 @@ static int c_can_handle_bus_err(struct net_device *dev, break; case LEC_ACK_ERROR: netdev_dbg(dev, "ack error\n"); - cf->data[2] |= (CAN_ERR_PROT_LOC_ACK | + cf->data[3] |= (CAN_ERR_PROT_LOC_ACK | CAN_ERR_PROT_LOC_ACK_DEL); break; case LEC_BIT1_ERROR: @@ -973,7 +973,7 @@ static int c_can_handle_bus_err(struct net_device *dev, break; case LEC_CRC_ERROR: netdev_dbg(dev, "CRC error\n"); - cf->data[2] |= (CAN_ERR_PROT_LOC_CRC_SEQ | + cf->data[3] |= (CAN_ERR_PROT_LOC_CRC_SEQ | CAN_ERR_PROT_LOC_CRC_DEL); break; default: -- cgit v1.2.3 From 71088c4bd9b8f8cbffb0e66f2abc14297e4b2ca8 Mon Sep 17 00:00:00 2001 From: Olivier Sobrie Date: Fri, 18 Jan 2013 09:32:40 +0100 Subject: can: ti_hecc: fix invalid error codes Errors in CAN protocol (location) are reported in data[3] of the can frame instead of data[2]. Cc: linux-stable Cc: Anant Gole Signed-off-by: Olivier Sobrie Signed-off-by: Marc Kleine-Budde --- drivers/net/can/ti_hecc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index f898c6363729..300581b24ff3 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -746,12 +746,12 @@ static int ti_hecc_error(struct net_device *ndev, int int_status, } if (err_status & HECC_CANES_CRCE) { hecc_set_bit(priv, HECC_CANES, HECC_CANES_CRCE); - cf->data[2] |= CAN_ERR_PROT_LOC_CRC_SEQ | + cf->data[3] |= CAN_ERR_PROT_LOC_CRC_SEQ | CAN_ERR_PROT_LOC_CRC_DEL; } if (err_status & HECC_CANES_ACKE) { hecc_set_bit(priv, HECC_CANES, HECC_CANES_ACKE); - cf->data[2] |= CAN_ERR_PROT_LOC_ACK | + cf->data[3] |= CAN_ERR_PROT_LOC_ACK | CAN_ERR_PROT_LOC_ACK_DEL; } } -- cgit v1.2.3 From ee50e135aeb048b90fab662e661c58b67341830b Mon Sep 17 00:00:00 2001 From: Olivier Sobrie Date: Fri, 18 Jan 2013 09:32:41 +0100 Subject: can: pch_can: fix invalid error codes Errors in CAN protocol (location) are reported in data[3] of the can frame instead of data[2]. Cc: linux-stable Signed-off-by: Olivier Sobrie Signed-off-by: Marc Kleine-Budde --- drivers/net/can/pch_can.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 7d1748575b1f..5c314a961970 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -560,7 +560,7 @@ static void pch_can_error(struct net_device *ndev, u32 status) stats->rx_errors++; break; case PCH_CRC_ERR: - cf->data[2] |= CAN_ERR_PROT_LOC_CRC_SEQ | + cf->data[3] |= CAN_ERR_PROT_LOC_CRC_SEQ | CAN_ERR_PROT_LOC_CRC_DEL; priv->can.can_stats.bus_error++; stats->rx_errors++; -- cgit v1.2.3 From d817ac4e181710cd02b582b759d3123ad2cfa8d8 Mon Sep 17 00:00:00 2001 From: Wei WANG Date: Wed, 23 Jan 2013 09:51:04 +0800 Subject: mfd: rtsx: Add output voltage switch hook Different card reader has different method to switch output voltage, add this callback to let the card reader implement its individual switch function. This is needed as rtl8411 has a specific switch output voltage procedure. Signed-off-by: Wei WANG Signed-off-by: Samuel Ortiz --- drivers/mfd/rtl8411.c | 16 ++++++++++++++++ drivers/mfd/rts5209.c | 20 ++++++++++++++++++++ drivers/mfd/rts5229.c | 20 ++++++++++++++++++++ drivers/mfd/rtsx_pcr.c | 9 +++++++++ 4 files changed, 65 insertions(+) (limited to 'drivers') diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c index 89f046ca9e41..5058ba8dec3b 100644 --- a/drivers/mfd/rtl8411.c +++ b/drivers/mfd/rtl8411.c @@ -112,6 +112,21 @@ static int rtl8411_card_power_off(struct rtsx_pcr *pcr, int card) BPP_LDO_POWB, BPP_LDO_SUSPEND); } +static int rtl8411_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) +{ + u8 mask, val; + + mask = (BPP_REG_TUNED18 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_MASK; + if (voltage == OUTPUT_3V3) + val = (BPP_ASIC_3V3 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_3V3; + else if (voltage == OUTPUT_1V8) + val = (BPP_ASIC_1V8 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_1V8; + else + return -EINVAL; + + return rtsx_pci_write_register(pcr, LDO_CTL, mask, val); +} + static unsigned int rtl8411_cd_deglitch(struct rtsx_pcr *pcr) { unsigned int card_exist; @@ -172,6 +187,7 @@ static const struct pcr_ops rtl8411_pcr_ops = { .disable_auto_blink = rtl8411_disable_auto_blink, .card_power_on = rtl8411_card_power_on, .card_power_off = rtl8411_card_power_off, + .switch_output_voltage = rtl8411_switch_output_voltage, .cd_deglitch = rtl8411_cd_deglitch, }; diff --git a/drivers/mfd/rts5209.c b/drivers/mfd/rts5209.c index 283a4f148084..ba74de8a7c24 100644 --- a/drivers/mfd/rts5209.c +++ b/drivers/mfd/rts5209.c @@ -144,6 +144,25 @@ static int rts5209_card_power_off(struct rtsx_pcr *pcr, int card) return rtsx_pci_send_cmd(pcr, 100); } +static int rts5209_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) +{ + int err; + + if (voltage == OUTPUT_3V3) { + err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 | 0x24); + if (err < 0) + return err; + } else if (voltage == OUTPUT_1V8) { + err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4C40 | 0x24); + if (err < 0) + return err; + } else { + return -EINVAL; + } + + return 0; +} + static const struct pcr_ops rts5209_pcr_ops = { .extra_init_hw = rts5209_extra_init_hw, .optimize_phy = rts5209_optimize_phy, @@ -153,6 +172,7 @@ static const struct pcr_ops rts5209_pcr_ops = { .disable_auto_blink = rts5209_disable_auto_blink, .card_power_on = rts5209_card_power_on, .card_power_off = rts5209_card_power_off, + .switch_output_voltage = rts5209_switch_output_voltage, .cd_deglitch = NULL, }; diff --git a/drivers/mfd/rts5229.c b/drivers/mfd/rts5229.c index b9dbab266fda..ec1747adf5d3 100644 --- a/drivers/mfd/rts5229.c +++ b/drivers/mfd/rts5229.c @@ -114,6 +114,25 @@ static int rts5229_card_power_off(struct rtsx_pcr *pcr, int card) return rtsx_pci_send_cmd(pcr, 100); } +static int rts5229_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) +{ + int err; + + if (voltage == OUTPUT_3V3) { + err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 | 0x24); + if (err < 0) + return err; + } else if (voltage == OUTPUT_1V8) { + err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4C40 | 0x24); + if (err < 0) + return err; + } else { + return -EINVAL; + } + + return 0; +} + static const struct pcr_ops rts5229_pcr_ops = { .extra_init_hw = rts5229_extra_init_hw, .optimize_phy = rts5229_optimize_phy, @@ -123,6 +142,7 @@ static const struct pcr_ops rts5229_pcr_ops = { .disable_auto_blink = rts5229_disable_auto_blink, .card_power_on = rts5229_card_power_on, .card_power_off = rts5229_card_power_off, + .switch_output_voltage = rts5229_switch_output_voltage, .cd_deglitch = NULL, }; diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c index 7a7b0bda4618..f4e02d089271 100644 --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -703,6 +703,15 @@ int rtsx_pci_card_power_off(struct rtsx_pcr *pcr, int card) } EXPORT_SYMBOL_GPL(rtsx_pci_card_power_off); +int rtsx_pci_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) +{ + if (pcr->ops->switch_output_voltage) + return pcr->ops->switch_output_voltage(pcr, voltage); + + return 0; +} +EXPORT_SYMBOL_GPL(rtsx_pci_switch_output_voltage); + unsigned int rtsx_pci_card_exist(struct rtsx_pcr *pcr) { unsigned int val; -- cgit v1.2.3 From ef85e736b1052d8c1e56990f0d08b6fce7cdbe41 Mon Sep 17 00:00:00 2001 From: Wei WANG Date: Wed, 23 Jan 2013 09:51:05 +0800 Subject: mmc: rtsx: Call MFD hook to switch output voltage Different card reader has different method to switch output voltage, so we have to use the callback function provided by MFD driver to switch output pad voltage. Signed-off-by: Wei WANG Signed-off-by: Samuel Ortiz --- drivers/mmc/host/rtsx_pci_sdmmc.c | 30 +++++------------------------- 1 file changed, 5 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c index 571915dfb218..f74b5adca642 100644 --- a/drivers/mmc/host/rtsx_pci_sdmmc.c +++ b/drivers/mmc/host/rtsx_pci_sdmmc.c @@ -1060,26 +1060,6 @@ static int sd_wait_voltage_stable_2(struct realtek_pci_sdmmc *host) return 0; } -static int sd_change_bank_voltage(struct realtek_pci_sdmmc *host, u8 voltage) -{ - struct rtsx_pcr *pcr = host->pcr; - int err; - - if (voltage == SD_IO_3V3) { - err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 | 0x24); - if (err < 0) - return err; - } else if (voltage == SD_IO_1V8) { - err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4C40 | 0x24); - if (err < 0) - return err; - } else { - return -EINVAL; - } - - return 0; -} - static int sdmmc_switch_voltage(struct mmc_host *mmc, struct mmc_ios *ios) { struct realtek_pci_sdmmc *host = mmc_priv(mmc); @@ -1098,11 +1078,11 @@ static int sdmmc_switch_voltage(struct mmc_host *mmc, struct mmc_ios *ios) rtsx_pci_start_run(pcr); if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_330) - voltage = SD_IO_3V3; + voltage = OUTPUT_3V3; else - voltage = SD_IO_1V8; + voltage = OUTPUT_1V8; - if (voltage == SD_IO_1V8) { + if (voltage == OUTPUT_1V8) { err = rtsx_pci_write_register(pcr, SD30_DRIVE_SEL, 0x07, DRIVER_TYPE_B); if (err < 0) @@ -1113,11 +1093,11 @@ static int sdmmc_switch_voltage(struct mmc_host *mmc, struct mmc_ios *ios) goto out; } - err = sd_change_bank_voltage(host, voltage); + err = rtsx_pci_switch_output_voltage(pcr, voltage); if (err < 0) goto out; - if (voltage == SD_IO_1V8) { + if (voltage == OUTPUT_1V8) { err = sd_wait_voltage_stable_2(host); if (err < 0) goto out; -- cgit v1.2.3 From ab4e8f8b7bdfeff0c961fdbbdacb262d68f094c0 Mon Sep 17 00:00:00 2001 From: Wei WANG Date: Wed, 23 Jan 2013 09:51:06 +0800 Subject: mfd: rtsx: Add clock divider hook Add callback function conv_clk_and_div_n to convert between SSC clock and its divider N. For rtl8411, the formula to calculate SSC clock divider N is different with the other card reader models. Signed-off-by: Wei WANG Signed-off-by: Samuel Ortiz --- drivers/mfd/rtl8411.c | 13 +++++++++++++ drivers/mfd/rts5209.c | 1 + drivers/mfd/rts5229.c | 1 + drivers/mfd/rtsx_pcr.c | 14 ++++++++++++-- 4 files changed, 27 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c index 5058ba8dec3b..3d3b4addf81a 100644 --- a/drivers/mfd/rtl8411.c +++ b/drivers/mfd/rtl8411.c @@ -178,6 +178,18 @@ static unsigned int rtl8411_cd_deglitch(struct rtsx_pcr *pcr) return card_exist; } +static int rtl8411_conv_clk_and_div_n(int input, int dir) +{ + int output; + + if (dir == CLK_TO_DIV_N) + output = input * 4 / 5 - 2; + else + output = (input + 2) * 5 / 4; + + return output; +} + static const struct pcr_ops rtl8411_pcr_ops = { .extra_init_hw = rtl8411_extra_init_hw, .optimize_phy = NULL, @@ -189,6 +201,7 @@ static const struct pcr_ops rtl8411_pcr_ops = { .card_power_off = rtl8411_card_power_off, .switch_output_voltage = rtl8411_switch_output_voltage, .cd_deglitch = rtl8411_cd_deglitch, + .conv_clk_and_div_n = rtl8411_conv_clk_and_div_n, }; /* SD Pull Control Enable: diff --git a/drivers/mfd/rts5209.c b/drivers/mfd/rts5209.c index ba74de8a7c24..98fe0f39463e 100644 --- a/drivers/mfd/rts5209.c +++ b/drivers/mfd/rts5209.c @@ -174,6 +174,7 @@ static const struct pcr_ops rts5209_pcr_ops = { .card_power_off = rts5209_card_power_off, .switch_output_voltage = rts5209_switch_output_voltage, .cd_deglitch = NULL, + .conv_clk_and_div_n = NULL, }; /* SD Pull Control Enable: diff --git a/drivers/mfd/rts5229.c b/drivers/mfd/rts5229.c index ec1747adf5d3..29d889cbb9c5 100644 --- a/drivers/mfd/rts5229.c +++ b/drivers/mfd/rts5229.c @@ -144,6 +144,7 @@ static const struct pcr_ops rts5229_pcr_ops = { .card_power_off = rts5229_card_power_off, .switch_output_voltage = rts5229_switch_output_voltage, .cd_deglitch = NULL, + .conv_clk_and_div_n = NULL, }; /* SD Pull Control Enable: diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c index f4e02d089271..910200e10fa0 100644 --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -630,7 +630,10 @@ int rtsx_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock, if (clk == pcr->cur_clock) return 0; - N = (u8)(clk - 2); + if (pcr->ops->conv_clk_and_div_n) + N = (u8)pcr->ops->conv_clk_and_div_n(clk, CLK_TO_DIV_N); + else + N = (u8)(clk - 2); if ((clk <= 2) || (N > max_N)) return -EINVAL; @@ -641,7 +644,14 @@ int rtsx_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock, /* Make sure that the SSC clock div_n is equal or greater than min_N */ div = CLK_DIV_1; while ((N < min_N) && (div < max_div)) { - N = (N + 2) * 2 - 2; + if (pcr->ops->conv_clk_and_div_n) { + int dbl_clk = pcr->ops->conv_clk_and_div_n(N, + DIV_N_TO_CLK) * 2; + N = (u8)pcr->ops->conv_clk_and_div_n(dbl_clk, + CLK_TO_DIV_N); + } else { + N = (N + 2) * 2 - 2; + } div++; } dev_dbg(&(pcr->pci->dev), "N = %d, div = %d\n", N, div); -- cgit v1.2.3 From 0a8c290ac58a86d5e1f2193abcd4d74ec075e20c Mon Sep 17 00:00:00 2001 From: Ashish Jangam Date: Fri, 25 Jan 2013 14:03:49 +0530 Subject: mfd: da9052/53 lockup fix An issue has been reported where the PMIC either locks up or fails to respond following a system Reset. This could result in a second write in which the bus writes the current content of the write buffer to address of the last I2C access. The failure case is where this unwanted write transfers incorrect data to a critical register. This patch fixes this issue to by following any read or write with a dummy read to a safe register address. A safe register address is one where the contents will not affect the operation of the system. Signed-off-by: Ashish Jangam Signed-off-by: Samuel Ortiz --- drivers/mfd/da9052-i2c.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) (limited to 'drivers') diff --git a/drivers/mfd/da9052-i2c.c b/drivers/mfd/da9052-i2c.c index ac74a4d1daea..885e56780358 100644 --- a/drivers/mfd/da9052-i2c.c +++ b/drivers/mfd/da9052-i2c.c @@ -27,6 +27,66 @@ #include #endif +/* I2C safe register check */ +static inline bool i2c_safe_reg(unsigned char reg) +{ + switch (reg) { + case DA9052_STATUS_A_REG: + case DA9052_STATUS_B_REG: + case DA9052_STATUS_C_REG: + case DA9052_STATUS_D_REG: + case DA9052_ADC_RES_L_REG: + case DA9052_ADC_RES_H_REG: + case DA9052_VDD_RES_REG: + case DA9052_ICHG_AV_REG: + case DA9052_TBAT_RES_REG: + case DA9052_ADCIN4_RES_REG: + case DA9052_ADCIN5_RES_REG: + case DA9052_ADCIN6_RES_REG: + case DA9052_TJUNC_RES_REG: + case DA9052_TSI_X_MSB_REG: + case DA9052_TSI_Y_MSB_REG: + case DA9052_TSI_LSB_REG: + case DA9052_TSI_Z_MSB_REG: + return true; + default: + return false; + } +} + +/* + * There is an issue with DA9052 and DA9053_AA/BA/BB PMIC where the PMIC + * gets lockup up or fails to respond following a system reset. + * This fix is to follow any read or write with a dummy read to a safe + * register. + */ +int da9052_i2c_fix(struct da9052 *da9052, unsigned char reg) +{ + int val; + + switch (da9052->chip_id) { + case DA9052: + case DA9053_AA: + case DA9053_BA: + case DA9053_BB: + /* A dummy read to a safe register address. */ + if (!i2c_safe_reg(reg)) + return regmap_read(da9052->regmap, + DA9052_PARK_REGISTER, + &val); + break; + default: + /* + * For other chips parking of I2C register + * to a safe place is not required. + */ + break; + } + + return 0; +} +EXPORT_SYMBOL(da9052_i2c_fix); + static int da9052_i2c_enable_multiwrite(struct da9052 *da9052) { int reg_val, ret; @@ -83,6 +143,7 @@ static int da9052_i2c_probe(struct i2c_client *client, da9052->dev = &client->dev; da9052->chip_irq = client->irq; + da9052->fix_io = da9052_i2c_fix; i2c_set_clientdata(client, da9052); -- cgit v1.2.3 From f65e9eacfad60cd05d1bac7defb6ff6b50dcfb5b Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 25 Jan 2013 14:14:26 +0000 Subject: mfd: twl4030: Don't warn about uninitialized return code If the twl4030_write_script function gets called with a zero length argument, its return value does not get set. We know that all scripts have a nonzero length, but returning an error in case they ever do is probably appropriate. Without this patch, building omap2plus_defconfig results in: drivers/mfd/twl4030-power.c: In function 'load_twl4030_script': drivers/mfd/twl4030-power.c:414:5: error: 'err' may be used uninitialized in this function Signed-off-by: Arnd Bergmann Reviewed-by: Peter Ujfalusi Reviewed-by: Amit Kucheria Cc: Kevin Hilman Cc: "Kristo, Tero" Signed-off-by: Samuel Ortiz --- drivers/mfd/twl4030-power.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c index 4dae241e5017..dd362c1078e1 100644 --- a/drivers/mfd/twl4030-power.c +++ b/drivers/mfd/twl4030-power.c @@ -159,7 +159,7 @@ out: static int twl4030_write_script(u8 address, struct twl4030_ins *script, int len) { - int err; + int err = -EINVAL; for (; len; len--, address++, script++) { if (len == 1) { -- cgit v1.2.3 From ff0decd49343c7c5bd0dbeadace344d69b9f205f Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 25 Jan 2013 23:53:51 +0800 Subject: mfd: wm5102: Fix definition of WM5102_MAX_REGISTER Updated in latest datasheet. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- drivers/mfd/wm5102-tables.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index 088872ab6338..1133a64c2dc9 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -1882,7 +1882,7 @@ static bool wm5102_volatile_register(struct device *dev, unsigned int reg) } } -#define WM5102_MAX_REGISTER 0x1a8fff +#define WM5102_MAX_REGISTER 0x1a9800 const struct regmap_config wm5102_spi_regmap = { .reg_bits = 32, -- cgit v1.2.3 From 2d1484f5990c094e2c706672a8d286576dd096b4 Mon Sep 17 00:00:00 2001 From: Wei WANG Date: Sun, 27 Jan 2013 01:55:16 +0100 Subject: mfd: rtsx: Fix oops when rtsx_pci_sdmmc is not probed If rtsx_pci_sdmmc is not probed, function pointer pcr->slots[].card_event will point to NULL, and thus rtsx_pci_card_detect will reference a NULL pointer. Check card_event pointer before referencing it can avoid kernel panic. Signed-off-by: Wei WANG Signed-off-by: Samuel Ortiz --- drivers/mfd/rtsx_pcr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c index 910200e10fa0..9fc57009e228 100644 --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -786,10 +786,10 @@ static void rtsx_pci_card_detect(struct work_struct *work) spin_unlock_irqrestore(&pcr->lock, flags); - if (card_detect & SD_EXIST) + if ((card_detect & SD_EXIST) && pcr->slots[RTSX_SD_CARD].card_event) pcr->slots[RTSX_SD_CARD].card_event( pcr->slots[RTSX_SD_CARD].p_dev); - if (card_detect & MS_EXIST) + if ((card_detect & MS_EXIST) && pcr->slots[RTSX_MS_CARD].card_event) pcr->slots[RTSX_MS_CARD].card_event( pcr->slots[RTSX_MS_CARD].p_dev); } -- cgit v1.2.3 From 47be24796c13e7d9f087005c2bedc68ee0709f7b Mon Sep 17 00:00:00 2001 From: Wanlong Gao Date: Thu, 24 Jan 2013 23:51:29 +0000 Subject: virtio-net: fix the set affinity bug when CPU IDs are not consecutive As Michael mentioned, set affinity and select queue will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs, and create a per cpu variable to find the mapping from CPU to the preferable virtual-queue. Cc: Rusty Russell Cc: "Michael S. Tsirkin" Cc: Jason Wang Cc: Eric Dumazet Cc: "David S. Miller" Cc: virtualization@lists.linux-foundation.org Cc: netdev@vger.kernel.org Signed-off-by: Wanlong Gao Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller --- drivers/net/virtio_net.c | 67 ++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 54 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index a6fcf15adc4f..fda214a5426a 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -123,6 +123,9 @@ struct virtnet_info { /* Does the affinity hint is set for virtqueues? */ bool affinity_hint_set; + + /* Per-cpu variable to show the mapping from CPU to virtqueue */ + int __percpu *vq_index; }; struct skb_vnet_hdr { @@ -1016,6 +1019,7 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev, u16 vid) static void virtnet_set_affinity(struct virtnet_info *vi, bool set) { int i; + int cpu; /* In multiqueue mode, when the number of cpu is equal to the number of * queue pairs, we let the queue pairs to be private to one cpu by @@ -1023,22 +1027,40 @@ static void virtnet_set_affinity(struct virtnet_info *vi, bool set) */ if ((vi->curr_queue_pairs == 1 || vi->max_queue_pairs != num_online_cpus()) && set) { - if (vi->affinity_hint_set) + if (vi->affinity_hint_set) { set = false; - else + } else { + i = 0; + for_each_online_cpu(cpu) + *per_cpu_ptr(vi->vq_index, cpu) = + ++i % vi->curr_queue_pairs; return; + } } - for (i = 0; i < vi->max_queue_pairs; i++) { - int cpu = set ? i : -1; - virtqueue_set_affinity(vi->rq[i].vq, cpu); - virtqueue_set_affinity(vi->sq[i].vq, cpu); - } + if (set) { + i = 0; + for_each_online_cpu(cpu) { + virtqueue_set_affinity(vi->rq[i].vq, cpu); + virtqueue_set_affinity(vi->sq[i].vq, cpu); + *per_cpu_ptr(vi->vq_index, cpu) = i; + i++; + } - if (set) vi->affinity_hint_set = true; - else + } else { + for(i = 0; i < vi->max_queue_pairs; i++) { + virtqueue_set_affinity(vi->rq[i].vq, -1); + virtqueue_set_affinity(vi->sq[i].vq, -1); + } + + i = 0; + for_each_online_cpu(cpu) + *per_cpu_ptr(vi->vq_index, cpu) = + ++i % vi->curr_queue_pairs; + vi->affinity_hint_set = false; + } } static void virtnet_get_ringparam(struct net_device *dev, @@ -1082,6 +1104,7 @@ static int virtnet_set_channels(struct net_device *dev, if (queue_pairs > vi->max_queue_pairs) return -EINVAL; + get_online_cpus(); err = virtnet_set_queues(vi, queue_pairs); if (!err) { netif_set_real_num_tx_queues(dev, queue_pairs); @@ -1089,6 +1112,7 @@ static int virtnet_set_channels(struct net_device *dev, virtnet_set_affinity(vi, true); } + put_online_cpus(); return err; } @@ -1127,12 +1151,19 @@ static int virtnet_change_mtu(struct net_device *dev, int new_mtu) /* To avoid contending a lock hold by a vcpu who would exit to host, select the * txq based on the processor id. - * TODO: handle cpu hotplug. */ static u16 virtnet_select_queue(struct net_device *dev, struct sk_buff *skb) { - int txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : - smp_processor_id(); + int txq; + struct virtnet_info *vi = netdev_priv(dev); + + if (skb_rx_queue_recorded(skb)) { + txq = skb_get_rx_queue(skb); + } else { + txq = *__this_cpu_ptr(vi->vq_index); + if (txq == -1) + txq = 0; + } while (unlikely(txq >= dev->real_num_tx_queues)) txq -= dev->real_num_tx_queues; @@ -1371,7 +1402,10 @@ static int init_vqs(struct virtnet_info *vi) if (ret) goto err_free; + get_online_cpus(); virtnet_set_affinity(vi, true); + put_online_cpus(); + return 0; err_free: @@ -1453,6 +1487,10 @@ static int virtnet_probe(struct virtio_device *vdev) if (vi->stats == NULL) goto free; + vi->vq_index = alloc_percpu(int); + if (vi->vq_index == NULL) + goto free_stats; + mutex_init(&vi->config_lock); vi->config_enable = true; INIT_WORK(&vi->config_work, virtnet_config_changed_work); @@ -1476,7 +1514,7 @@ static int virtnet_probe(struct virtio_device *vdev) /* Allocate/initialize the rx/tx queues, and invoke find_vqs */ err = init_vqs(vi); if (err) - goto free_stats; + goto free_index; netif_set_real_num_tx_queues(dev, 1); netif_set_real_num_rx_queues(dev, 1); @@ -1520,6 +1558,8 @@ free_recv_bufs: free_vqs: cancel_delayed_work_sync(&vi->refill); virtnet_del_vqs(vi); +free_index: + free_percpu(vi->vq_index); free_stats: free_percpu(vi->stats); free: @@ -1554,6 +1594,7 @@ static void virtnet_remove(struct virtio_device *vdev) flush_work(&vi->config_work); + free_percpu(vi->vq_index); free_percpu(vi->stats); free_netdev(vi->dev); } -- cgit v1.2.3 From 8898c21cf37d04041863e7ecf53707dff504bda0 Mon Sep 17 00:00:00 2001 From: Wanlong Gao Date: Thu, 24 Jan 2013 23:51:30 +0000 Subject: virtio-net: split out clean affinity function Split out the clean affinity function to virtnet_clean_affinity(). Cc: Rusty Russell Cc: "Michael S. Tsirkin" Cc: Jason Wang Cc: Eric Dumazet Cc: "David S. Miller" Cc: virtualization@lists.linux-foundation.org Cc: netdev@vger.kernel.org Signed-off-by: Wanlong Gao Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller --- drivers/net/virtio_net.c | 76 +++++++++++++++++++++++++----------------------- 1 file changed, 40 insertions(+), 36 deletions(-) (limited to 'drivers') diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index fda214a5426a..2f6fe9b6b17b 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -1016,51 +1016,55 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev, u16 vid) return 0; } -static void virtnet_set_affinity(struct virtnet_info *vi, bool set) +static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu) { int i; int cpu; - /* In multiqueue mode, when the number of cpu is equal to the number of - * queue pairs, we let the queue pairs to be private to one cpu by - * setting the affinity hint to eliminate the contention. - */ - if ((vi->curr_queue_pairs == 1 || - vi->max_queue_pairs != num_online_cpus()) && set) { - if (vi->affinity_hint_set) { - set = false; - } else { - i = 0; - for_each_online_cpu(cpu) - *per_cpu_ptr(vi->vq_index, cpu) = - ++i % vi->curr_queue_pairs; - return; - } - } - - if (set) { - i = 0; - for_each_online_cpu(cpu) { - virtqueue_set_affinity(vi->rq[i].vq, cpu); - virtqueue_set_affinity(vi->sq[i].vq, cpu); - *per_cpu_ptr(vi->vq_index, cpu) = i; - i++; - } - - vi->affinity_hint_set = true; - } else { - for(i = 0; i < vi->max_queue_pairs; i++) { + if (vi->affinity_hint_set) { + for (i = 0; i < vi->max_queue_pairs; i++) { virtqueue_set_affinity(vi->rq[i].vq, -1); virtqueue_set_affinity(vi->sq[i].vq, -1); } - i = 0; - for_each_online_cpu(cpu) + vi->affinity_hint_set = false; + } + + i = 0; + for_each_online_cpu(cpu) { + if (cpu == hcpu) { + *per_cpu_ptr(vi->vq_index, cpu) = -1; + } else { *per_cpu_ptr(vi->vq_index, cpu) = ++i % vi->curr_queue_pairs; + } + } +} - vi->affinity_hint_set = false; +static void virtnet_set_affinity(struct virtnet_info *vi) +{ + int i; + int cpu; + + /* In multiqueue mode, when the number of cpu is equal to the number of + * queue pairs, we let the queue pairs to be private to one cpu by + * setting the affinity hint to eliminate the contention. + */ + if (vi->curr_queue_pairs == 1 || + vi->max_queue_pairs != num_online_cpus()) { + virtnet_clean_affinity(vi, -1); + return; } + + i = 0; + for_each_online_cpu(cpu) { + virtqueue_set_affinity(vi->rq[i].vq, cpu); + virtqueue_set_affinity(vi->sq[i].vq, cpu); + *per_cpu_ptr(vi->vq_index, cpu) = i; + i++; + } + + vi->affinity_hint_set = true; } static void virtnet_get_ringparam(struct net_device *dev, @@ -1110,7 +1114,7 @@ static int virtnet_set_channels(struct net_device *dev, netif_set_real_num_tx_queues(dev, queue_pairs); netif_set_real_num_rx_queues(dev, queue_pairs); - virtnet_set_affinity(vi, true); + virtnet_set_affinity(vi); } put_online_cpus(); @@ -1279,7 +1283,7 @@ static void virtnet_del_vqs(struct virtnet_info *vi) { struct virtio_device *vdev = vi->vdev; - virtnet_set_affinity(vi, false); + virtnet_clean_affinity(vi, -1); vdev->config->del_vqs(vdev); @@ -1403,7 +1407,7 @@ static int init_vqs(struct virtnet_info *vi) goto err_free; get_online_cpus(); - virtnet_set_affinity(vi, true); + virtnet_set_affinity(vi); put_online_cpus(); return 0; -- cgit v1.2.3 From 8de4b2f3ae90c8fc0f17eeaab87d5a951b66ee17 Mon Sep 17 00:00:00 2001 From: Wanlong Gao Date: Thu, 24 Jan 2013 23:51:31 +0000 Subject: virtio-net: reset virtqueue affinity when doing cpu hotplug Add a cpu notifier to virtio-net, so that we can reset the virtqueue affinity if the cpu hotplug happens. It improve the performance through enabling or disabling the virtqueue affinity after doing cpu hotplug. Cc: Rusty Russell Cc: "Michael S. Tsirkin" Cc: Jason Wang Cc: Eric Dumazet Cc: "David S. Miller" Cc: virtualization@lists.linux-foundation.org Cc: netdev@vger.kernel.org Signed-off-by: Wanlong Gao Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller --- drivers/net/virtio_net.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) (limited to 'drivers') diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 2f6fe9b6b17b..35c00c5ea02a 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -26,6 +26,7 @@ #include #include #include +#include static int napi_weight = 128; module_param(napi_weight, int, 0444); @@ -126,6 +127,9 @@ struct virtnet_info { /* Per-cpu variable to show the mapping from CPU to virtqueue */ int __percpu *vq_index; + + /* CPU hot plug notifier */ + struct notifier_block nb; }; struct skb_vnet_hdr { @@ -1067,6 +1071,26 @@ static void virtnet_set_affinity(struct virtnet_info *vi) vi->affinity_hint_set = true; } +static int virtnet_cpu_callback(struct notifier_block *nfb, + unsigned long action, void *hcpu) +{ + struct virtnet_info *vi = container_of(nfb, struct virtnet_info, nb); + + switch(action & ~CPU_TASKS_FROZEN) { + case CPU_ONLINE: + case CPU_DOWN_FAILED: + case CPU_DEAD: + virtnet_set_affinity(vi); + break; + case CPU_DOWN_PREPARE: + virtnet_clean_affinity(vi, (long)hcpu); + break; + default: + break; + } + return NOTIFY_OK; +} + static void virtnet_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ring) { @@ -1541,6 +1565,13 @@ static int virtnet_probe(struct virtio_device *vdev) } } + vi->nb.notifier_call = &virtnet_cpu_callback; + err = register_hotcpu_notifier(&vi->nb); + if (err) { + pr_debug("virtio_net: registering cpu notifier failed\n"); + goto free_recv_bufs; + } + /* Assume link up if device can't report link status, otherwise get link status from config. */ if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_STATUS)) { @@ -1587,6 +1618,8 @@ static void virtnet_remove(struct virtio_device *vdev) { struct virtnet_info *vi = vdev->priv; + unregister_hotcpu_notifier(&vi->nb); + /* Prevent config work handler from accessing the device. */ mutex_lock(&vi->config_lock); vi->config_enable = false; -- cgit v1.2.3 From 794ed393b707f01858f5ebe2ae5eabaf89d00022 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 25 Jan 2013 07:44:41 +0000 Subject: net: loopback: fix a dst refcounting issue Ben Greear reported crashes in ip_rcv_finish() on a stress test involving many macvlans. We tracked the bug to a dst use after free. ip_rcv_finish() was calling dst->input() and got garbage for dst->input value. It appears the bug is in loopback driver, lacking a skb_dst_force() before calling netif_rx(). As a result, a non refcounted dst, normally protected by a RCU read_lock section, was escaping this section and could be freed before the packet being processed. [] loopback_xmit+0x64/0x83 [] dev_hard_start_xmit+0x26c/0x35e [] dev_queue_xmit+0x2c4/0x37c [] ? dev_hard_start_xmit+0x35e/0x35e [] ? eth_header+0x28/0xb6 [] neigh_resolve_output+0x176/0x1a7 [] ip_finish_output2+0x297/0x30d [] ? ip_finish_output2+0x137/0x30d [] ip_finish_output+0x63/0x68 [] ip_output+0x61/0x67 [] dst_output+0x17/0x1b [] ip_local_out+0x1e/0x23 [] ip_queue_xmit+0x315/0x353 [] ? ip_send_unicast_reply+0x2cc/0x2cc [] tcp_transmit_skb+0x7ca/0x80b [] tcp_connect+0x53c/0x587 [] ? getnstimeofday+0x44/0x7d [] ? ktime_get_real+0x11/0x3e [] tcp_v4_connect+0x3c2/0x431 [] __inet_stream_connect+0x84/0x287 [] ? inet_stream_connect+0x22/0x49 [] ? _local_bh_enable_ip+0x84/0x9f [] ? local_bh_enable+0xd/0x11 [] ? lock_sock_nested+0x6e/0x79 [] ? inet_stream_connect+0x22/0x49 [] inet_stream_connect+0x33/0x49 [] sys_connect+0x75/0x98 This bug was introduced in linux-2.6.35, in commit 7fee226ad2397b (net: add a noref bit on skb dst) skb_dst_force() is enforced in dev_queue_xmit() for devices having a qdisc. Reported-by: Ben Greear Signed-off-by: Eric Dumazet Tested-by: Ben Greear Signed-off-by: David S. Miller --- drivers/net/loopback.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c index 81f8f9e31db5..fcbf680c3e62 100644 --- a/drivers/net/loopback.c +++ b/drivers/net/loopback.c @@ -77,6 +77,11 @@ static netdev_tx_t loopback_xmit(struct sk_buff *skb, skb_orphan(skb); + /* Before queueing this packet to netif_rx(), + * make sure dst is refcounted. + */ + skb_dst_force(skb); + skb->protocol = eth_type_trans(skb, dev); /* it's OK to use per_cpu_ptr() because BHs are off */ -- cgit v1.2.3 From 56a666dcfcb46e998a1bd969fb201bf51de3c412 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Fri, 25 Jan 2013 23:36:59 +0000 Subject: net: cdc_ncm: use IAD provided by the USB core MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 9992c2e (net: cdc_ncm: workaround for missing CDC Union) added code to lookup an IAD for the interface we are probing. This is redundant. The USB core has already done the lookup and saved the result in the USB interface struct. Use that instead. Cc: Greg Suarez Cc: Alexey Orishko Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ncm.c | 28 ++++------------------------ 1 file changed, 4 insertions(+), 24 deletions(-) (limited to 'drivers') diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index f94711caa08a..9197b2c72ca3 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -344,23 +344,6 @@ static const struct ethtool_ops cdc_ncm_ethtool_ops = { .nway_reset = usbnet_nway_reset, }; -/* return first slave interface if an IAD matches the given master */ -static struct usb_interface *get_iad_slave(struct usb_device *udev, - struct usb_interface *master) { - int i; - struct usb_interface_assoc_descriptor *iad; - u8 mnum = master->cur_altsetting->desc.bInterfaceNumber; - - for (i = 0; i < USB_MAXIADS; i++) { - iad = udev->actconfig->intf_assoc[i]; - if (!iad) - break; - if (iad->bFirstInterface == mnum && iad->bInterfaceCount == 2) - return usb_ifnum_to_if(udev, mnum + 1); - } - return NULL; -} - int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting) { struct cdc_ncm_ctx *ctx; @@ -453,13 +436,10 @@ advance: } /* some buggy devices have an IAD but no CDC Union */ - if (!ctx->union_desc) { - dev_dbg(&intf->dev, "missing CDC Union descriptor\n"); - ctx->data = get_iad_slave(dev->udev, intf); - if (ctx->data) { - ctx->control = intf; - dev_dbg(&intf->dev, "got slave from IAD\n"); - } + if (!ctx->union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) { + ctx->control = intf; + ctx->data = usb_ifnum_to_if(dev->udev, intf->cur_altsetting->desc.bInterfaceNumber + 1); + dev_dbg(&intf->dev, "CDC Union missing - got slave from IAD\n"); } /* check if we got everything */ -- cgit v1.2.3 From ce11ff5e5963e441feb591e76278528f876c332d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?fran=C3=A7ois=20romieu?= Date: Thu, 24 Jan 2013 13:30:06 +0000 Subject: r8169: fix vlan tag read ordering. Control of receive descriptor must not be returned to ethernet chipset before vlan tag processing is done. VLAN tag receive word is now reset both in normal and error path. Signed-off-by: Francois Romieu Spotted-by: Timo Teras Cc: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index c28bc318cec6..11702324a071 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -1826,8 +1826,6 @@ static void rtl8169_rx_vlan_tag(struct RxDesc *desc, struct sk_buff *skb) if (opts2 & RxVlanTag) __vlan_hwaccel_put_tag(skb, swab16(opts2 & 0xffff)); - - desc->opts2 = 0; } static int rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd) @@ -6064,8 +6062,6 @@ static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, u32 budget !(status & (RxRWT | RxFOVF)) && (dev->features & NETIF_F_RXALL)) goto process_pkt; - - rtl8169_mark_to_asic(desc, rx_buf_sz); } else { struct sk_buff *skb; dma_addr_t addr; @@ -6086,16 +6082,14 @@ process_pkt: if (unlikely(rtl8169_fragmented_frame(status))) { dev->stats.rx_dropped++; dev->stats.rx_length_errors++; - rtl8169_mark_to_asic(desc, rx_buf_sz); - continue; + goto release_descriptor; } skb = rtl8169_try_rx_copy(tp->Rx_databuff[entry], tp, pkt_size, addr); - rtl8169_mark_to_asic(desc, rx_buf_sz); if (!skb) { dev->stats.rx_dropped++; - continue; + goto release_descriptor; } rtl8169_rx_csum(skb, status); @@ -6111,6 +6105,10 @@ process_pkt: tp->rx_stats.bytes += pkt_size; u64_stats_update_end(&tp->rx_stats.syncp); } +release_descriptor: + desc->opts2 = 0; + wmb(); + rtl8169_mark_to_asic(desc, rx_buf_sz); } count = cur_rx - tp->cur_rx; -- cgit v1.2.3 From b4a496319f2fe4b46d7a9ab246f4fbf23a5a3106 Mon Sep 17 00:00:00 2001 From: Stuart Menefy Date: Wed, 23 Jan 2013 00:22:36 +0000 Subject: net: phy: icplus: Use the RGMII interface mode to configure clock delays Like several other PHY devices which support RGMII, the IC+1001 allows additional delays to by added to the RX_CLK and TX_CLK signals to compensate for skew between the clock and data signals. Previously this was always enabled, but this change makes use of the different RGMII interface modes to allow the user to specify whether this should be enabled. Signed-off-by: Stuart Menefy Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/phy/icplus.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/phy/icplus.c b/drivers/net/phy/icplus.c index d5199cb4caec..c0e092470182 100644 --- a/drivers/net/phy/icplus.c +++ b/drivers/net/phy/icplus.c @@ -36,8 +36,9 @@ MODULE_LICENSE("GPL"); /* IP101A/G - IP1001 */ #define IP10XX_SPEC_CTRL_STATUS 16 /* Spec. Control Register */ +#define IP1001_RXPHASE_SEL (1<<0) /* Add delay on RX_CLK */ +#define IP1001_TXPHASE_SEL (1<<1) /* Add delay on TX_CLK */ #define IP1001_SPEC_CTRL_STATUS_2 20 /* IP1001 Spec. Control Reg 2 */ -#define IP1001_PHASE_SEL_MASK 3 /* IP1001 RX/TXPHASE_SEL */ #define IP1001_APS_ON 11 /* IP1001 APS Mode bit */ #define IP101A_G_APS_ON 2 /* IP101A/G APS Mode bit */ #define IP101A_G_IRQ_CONF_STATUS 0x11 /* Conf Info IRQ & Status Reg */ @@ -143,14 +144,24 @@ static int ip1001_config_init(struct phy_device *phydev) if (c < 0) return c; - if (phydev->interface == PHY_INTERFACE_MODE_RGMII) { - /* Additional delay (2ns) used to adjust RX clock phase - * at RGMII interface */ + if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) || + (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) || + (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) || + (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) { + c = phy_read(phydev, IP10XX_SPEC_CTRL_STATUS); if (c < 0) return c; - c |= IP1001_PHASE_SEL_MASK; + c &= ~(IP1001_RXPHASE_SEL | IP1001_TXPHASE_SEL); + + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) + c |= (IP1001_RXPHASE_SEL | IP1001_TXPHASE_SEL); + else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) + c |= IP1001_RXPHASE_SEL; + else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) + c |= IP1001_TXPHASE_SEL; + c = phy_write(phydev, IP10XX_SPEC_CTRL_STATUS, c); if (c < 0) return c; -- cgit v1.2.3 From 014f2ffdf6e22581f172ba443be0ad924a913f46 Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Wed, 23 Jan 2013 00:22:37 +0000 Subject: net: phy: icplus: fix broken INTR pin settings This patch fixes the setting of the INTR pin that is valid for IP101 A/G device and not for the IP1001. Reported-by: Anunay Saxena Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/phy/icplus.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/phy/icplus.c b/drivers/net/phy/icplus.c index c0e092470182..b5ddd5077a80 100644 --- a/drivers/net/phy/icplus.c +++ b/drivers/net/phy/icplus.c @@ -139,11 +139,6 @@ static int ip1001_config_init(struct phy_device *phydev) if (c < 0) return c; - /* INTR pin used: speed/link/duplex will cause an interrupt */ - c = phy_write(phydev, IP101A_G_IRQ_CONF_STATUS, IP101A_G_IRQ_DEFAULT); - if (c < 0) - return c; - if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) || (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) || (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) || @@ -178,6 +173,11 @@ static int ip101a_g_config_init(struct phy_device *phydev) if (c < 0) return c; + /* INTR pin used: speed/link/duplex will cause an interrupt */ + c = phy_write(phydev, IP101A_G_IRQ_CONF_STATUS, IP101A_G_IRQ_DEFAULT); + if (c < 0) + return c; + /* Enable Auto Power Saving mode */ c = phy_read(phydev, IP10XX_SPEC_CTRL_STATUS); c |= IP101A_G_APS_ON; -- cgit v1.2.3 From 6642f91c92da07369cf1e582503ea3ccb4a7f1a9 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Sun, 27 Jan 2013 12:34:22 +0000 Subject: dm9601: support dm9620 variant MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit dm9620 is a newer variant of dm9601 with more features (usb 2.0, checksum offload, ..), but it can also be put in a dm9601 compatible mode, allowing us to reuse the existing driver. This does mean that the extended features like checksum offload cannot be used, but that's hardly critical on a 100mbps interface. Thanks to Sławek Wernikowski for providing me with a dm9620 based device to test. Signed-off-by: Peter Korsgaard Signed-off-by: David S. Miller --- drivers/net/usb/dm9601.c | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c index 011410f39c90..d7e99445518e 100644 --- a/drivers/net/usb/dm9601.c +++ b/drivers/net/usb/dm9601.c @@ -45,6 +45,12 @@ #define DM_MCAST_ADDR 0x16 /* 8 bytes */ #define DM_GPR_CTRL 0x1e #define DM_GPR_DATA 0x1f +#define DM_CHIP_ID 0x2c +#define DM_MODE_CTRL 0x91 /* only on dm9620 */ + +/* chip id values */ +#define ID_DM9601 0 +#define ID_DM9620 1 #define DM_MAX_MCAST 64 #define DM_MCAST_SIZE 8 @@ -348,7 +354,7 @@ static const struct net_device_ops dm9601_netdev_ops = { static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf) { int ret; - u8 mac[ETH_ALEN]; + u8 mac[ETH_ALEN], id; ret = usbnet_get_endpoints(dev, intf); if (ret) @@ -389,6 +395,24 @@ static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf) __dm9601_set_mac_address(dev); } + if (dm_read_reg(dev, DM_CHIP_ID, &id) < 0) { + netdev_err(dev->net, "Error reading chip ID\n"); + ret = -ENODEV; + goto out; + } + + /* put dm9620 devices in dm9601 mode */ + if (id == ID_DM9620) { + u8 mode; + + if (dm_read_reg(dev, DM_MODE_CTRL, &mode) < 0) { + netdev_err(dev->net, "Error reading MODE_CTRL\n"); + ret = -ENODEV; + goto out; + } + dm_write_reg(dev, DM_MODE_CTRL, mode & 0x7f); + } + /* power up phy */ dm_write_reg(dev, DM_GPR_CTRL, 1); dm_write_reg(dev, DM_GPR_DATA, 0); @@ -571,6 +595,10 @@ static const struct usb_device_id products[] = { USB_DEVICE(0x0a46, 0x9000), /* DM9000E */ .driver_info = (unsigned long)&dm9601_info, }, + { + USB_DEVICE(0x0a46, 0x9620), /* DM9620 USB to Fast Ethernet Adapter */ + .driver_info = (unsigned long)&dm9601_info, + }, {}, // END }; -- cgit v1.2.3 From 318fe782539c4150d1b8e4e6c9dc3a896512cb8a Mon Sep 17 00:00:00 2001 From: Suravee Suthikulpanit Date: Thu, 24 Jan 2013 13:17:53 -0600 Subject: IOMMU, AMD Family15h Model10-1Fh erratum 746 Workaround The IOMMU may stop processing page translations due to a perceived lack of credits for writing upstream peripheral page service request (PPR) or event logs. If the L2B miscellaneous clock gating feature is enabled the IOMMU does not properly register credits after the log request has completed, leading to a potential system hang. BIOSes are supposed to disable L2B micellaneous clock gating by setting L2_L2B_CK_GATE_CONTROL[CKGateL2BMiscDisable](D0F2xF4_x90[2]) = 1b. This patch corrects that for those which do not enable this workaround. Signed-off-by: Suravee Suthikulpanit Acked-by: Borislav Petkov Cc: stable@vger.kernel.org Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu_init.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) (limited to 'drivers') diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 81837b0710a9..faf10ba1ed9a 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -974,6 +974,38 @@ static void __init free_iommu_all(void) } } +/* + * Family15h Model 10h-1fh erratum 746 (IOMMU Logging May Stall Translations) + * Workaround: + * BIOS should disable L2B micellaneous clock gating by setting + * L2_L2B_CK_GATE_CONTROL[CKGateL2BMiscDisable](D0F2xF4_x90[2]) = 1b + */ +static void __init amd_iommu_erratum_746_workaround(struct amd_iommu *iommu) +{ + u32 value; + + if ((boot_cpu_data.x86 != 0x15) || + (boot_cpu_data.x86_model < 0x10) || + (boot_cpu_data.x86_model > 0x1f)) + return; + + pci_write_config_dword(iommu->dev, 0xf0, 0x90); + pci_read_config_dword(iommu->dev, 0xf4, &value); + + if (value & BIT(2)) + return; + + /* Select NB indirect register 0x90 and enable writing */ + pci_write_config_dword(iommu->dev, 0xf0, 0x90 | (1 << 8)); + + pci_write_config_dword(iommu->dev, 0xf4, value | 0x4); + pr_info("AMD-Vi: Applying erratum 746 workaround for IOMMU at %s\n", + dev_name(&iommu->dev->dev)); + + /* Clear the enable writing bit */ + pci_write_config_dword(iommu->dev, 0xf0, 0x90); +} + /* * This function clues the initialization function for one IOMMU * together and also allocates the command buffer and programs the @@ -1172,6 +1204,8 @@ static int iommu_init_pci(struct amd_iommu *iommu) iommu->stored_l2[i] = iommu_read_l2(iommu, i); } + amd_iommu_erratum_746_workaround(iommu); + return pci_enable_device(iommu->dev); } -- cgit v1.2.3 From 312b00e510af60175b2935404a1927e6480e91e7 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 25 Jan 2013 14:14:29 +0000 Subject: pinctrl: exynos: don't mark probing functions as __init Functions called from a driver probe() method must not be marked __init, because they may get called after the init phase is done, when the device shows up late, or because of deferred probing. Without this patch, building exynos_defconfig results in multiple warnings like: WARNING: drivers/pinctrl/built-in.o(.text+0x51bc): Section mismatch in reference from the function exynos5440_pinctrl_probe() to the function .init.text:exynos5440_gpiolib_register() The function exynos5440_pinctrl_probe() references the function __init exynos5440_gpiolib_register(). This is often because exynos5440_pinctrl_probe lacks a __init annotation or the annotation of exynos5440_gpiolib_register is wrong. Signed-off-by: Arnd Bergmann Cc: Tomasz Figa Acked-by: Kukjin Kim Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-exynos5440.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c index de05b64f0da6..142729914c34 100644 --- a/drivers/pinctrl/pinctrl-exynos5440.c +++ b/drivers/pinctrl/pinctrl-exynos5440.c @@ -599,7 +599,7 @@ static int exynos5440_gpio_direction_output(struct gpio_chip *gc, unsigned offse } /* parse the pin numbers listed in the 'samsung,exynos5440-pins' property */ -static int __init exynos5440_pinctrl_parse_dt_pins(struct platform_device *pdev, +static int exynos5440_pinctrl_parse_dt_pins(struct platform_device *pdev, struct device_node *cfg_np, unsigned int **pin_list, unsigned int *npins) { @@ -630,7 +630,7 @@ static int __init exynos5440_pinctrl_parse_dt_pins(struct platform_device *pdev, * Parse the information about all the available pin groups and pin functions * from device node of the pin-controller. */ -static int __init exynos5440_pinctrl_parse_dt(struct platform_device *pdev, +static int exynos5440_pinctrl_parse_dt(struct platform_device *pdev, struct exynos5440_pinctrl_priv_data *priv) { struct device *dev = &pdev->dev; @@ -723,7 +723,7 @@ static int __init exynos5440_pinctrl_parse_dt(struct platform_device *pdev, } /* register the pinctrl interface with the pinctrl subsystem */ -static int __init exynos5440_pinctrl_register(struct platform_device *pdev, +static int exynos5440_pinctrl_register(struct platform_device *pdev, struct exynos5440_pinctrl_priv_data *priv) { struct device *dev = &pdev->dev; @@ -798,7 +798,7 @@ static int __init exynos5440_pinctrl_register(struct platform_device *pdev, } /* register the gpiolib interface with the gpiolib subsystem */ -static int __init exynos5440_gpiolib_register(struct platform_device *pdev, +static int exynos5440_gpiolib_register(struct platform_device *pdev, struct exynos5440_pinctrl_priv_data *priv) { struct gpio_chip *gc; @@ -831,7 +831,7 @@ static int __init exynos5440_gpiolib_register(struct platform_device *pdev, } /* unregister the gpiolib interface with the gpiolib subsystem */ -static int __init exynos5440_gpiolib_unregister(struct platform_device *pdev, +static int exynos5440_gpiolib_unregister(struct platform_device *pdev, struct exynos5440_pinctrl_priv_data *priv) { int ret = gpiochip_remove(priv->gc); -- cgit v1.2.3 From 0fafd50e4b41c06bf6be8dead87075e88ef25303 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 25 Jan 2013 14:14:30 +0000 Subject: pinctrl: nomadik: nmk_prcm_gpiocr_get_mode may be unused nmk_prcm_gpiocr_get_mode is only needed for debugfs output at the moment, which can be compile-time disabled. Marking the function __maybe_unused still gives us compile-time coverage, but avoids a gcc warning. Without this patch, building nhk8815_defconfig results in: drivers/pinctrl/pinctrl-nomadik.c:676:12: warning: 'nmk_prcm_gpiocr_get_mode' defined but not used [-Wunused-function] Signed-off-by: Arnd Bergmann Cc: Jean-Nicolas Graux Cc: Srinidhi Kasagar Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-nomadik.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 1bb16ffb4e41..5767b18ebdff 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -676,7 +676,7 @@ int nmk_gpio_set_mode(int gpio, int gpio_mode) } EXPORT_SYMBOL(nmk_gpio_set_mode); -static int nmk_prcm_gpiocr_get_mode(struct pinctrl_dev *pctldev, int gpio) +static int __maybe_unused nmk_prcm_gpiocr_get_mode(struct pinctrl_dev *pctldev, int gpio) { int i; u16 reg; -- cgit v1.2.3 From 8024c4c0b1057d1cd811fc9c3f88f81de9729fcd Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 26 Jan 2013 10:49:24 +0300 Subject: EDAC: Test correct variable in ->store function We're testing for ->show but calling ->store(). Signed-off-by: Dan Carpenter Cc: stable@vger.kernel.org Signed-off-by: Borislav Petkov --- drivers/edac/edac_pci_sysfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c index dc6e905ee1a5..0056c4dae9d5 100644 --- a/drivers/edac/edac_pci_sysfs.c +++ b/drivers/edac/edac_pci_sysfs.c @@ -256,7 +256,7 @@ static ssize_t edac_pci_dev_store(struct kobject *kobj, struct edac_pci_dev_attribute *edac_pci_dev; edac_pci_dev = (struct edac_pci_dev_attribute *)attr; - if (edac_pci_dev->show) + if (edac_pci_dev->store) return edac_pci_dev->store(edac_pci_dev->value, buffer, count); return -EIO; } -- cgit v1.2.3 From d3d09e18203dba16a9dbdb2b4cc673d90748cdd1 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sat, 26 Jan 2013 11:24:00 -0800 Subject: EDAC: Fix kcalloc argument order First number, then size. Signed-off-by: Joe Perches Cc: Signed-off-by: Borislav Petkov --- drivers/edac/edac_mc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 281f566a5513..d1e9eb191f2b 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -340,7 +340,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num, /* * Alocate and fill the csrow/channels structs */ - mci->csrows = kcalloc(sizeof(*mci->csrows), tot_csrows, GFP_KERNEL); + mci->csrows = kcalloc(tot_csrows, sizeof(*mci->csrows), GFP_KERNEL); if (!mci->csrows) goto error; for (row = 0; row < tot_csrows; row++) { @@ -351,7 +351,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num, csr->csrow_idx = row; csr->mci = mci; csr->nr_channels = tot_channels; - csr->channels = kcalloc(sizeof(*csr->channels), tot_channels, + csr->channels = kcalloc(tot_channels, sizeof(*csr->channels), GFP_KERNEL); if (!csr->channels) goto error; @@ -369,7 +369,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num, /* * Allocate and fill the dimm structs */ - mci->dimms = kcalloc(sizeof(*mci->dimms), tot_dimms, GFP_KERNEL); + mci->dimms = kcalloc(tot_dimms, sizeof(*mci->dimms), GFP_KERNEL); if (!mci->dimms) goto error; -- cgit v1.2.3 From 83e68189745ad931c2afd45d8ee3303929233e7f Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Wed, 14 Nov 2012 09:42:35 +0000 Subject: efi: Make 'efi_enabled' a function to query EFI facilities Originally 'efi_enabled' indicated whether a kernel was booted from EFI firmware. Over time its semantics have changed, and it now indicates whether or not we are booted on an EFI machine with bit-native firmware, e.g. 64-bit kernel with 64-bit firmware. The immediate motivation for this patch is the bug report at, https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557 which details how running a platform driver on an EFI machine that is designed to run under BIOS can cause the machine to become bricked. Also, the following report, https://bugzilla.kernel.org/show_bug.cgi?id=47121 details how running said driver can also cause Machine Check Exceptions. Drivers need a new means of detecting whether they're running on an EFI machine, as sadly the expression, if (!efi_enabled) hasn't been a sufficient condition for quite some time. Users actually want to query 'efi_enabled' for different reasons - what they really want access to is the list of available EFI facilities. For instance, the x86 reboot code needs to know whether it can invoke the ResetSystem() function provided by the EFI runtime services, while the ACPI OSL code wants to know whether the EFI config tables were mapped successfully. There are also checks in some of the platform driver code to simply see if they're running on an EFI machine (which would make it a bad idea to do BIOS-y things). This patch is a prereq for the samsung-laptop fix patch. Cc: David Airlie Cc: Corentin Chary Cc: Matthew Garrett Cc: Dave Jiang Cc: Olof Johansson Cc: Peter Jones Cc: Colin Ian King Cc: Steve Langasek Cc: Tony Luck Cc: Konrad Rzeszutek Wilk Cc: Rafael J. Wysocki Cc: Signed-off-by: Matt Fleming Signed-off-by: H. Peter Anvin --- drivers/acpi/osl.c | 2 +- drivers/firmware/dmi_scan.c | 2 +- drivers/firmware/efivars.c | 4 ++-- drivers/firmware/iscsi_ibft_find.c | 2 +- drivers/gpu/drm/radeon/radeon_device.c | 3 ++- drivers/platform/x86/ibm_rtl.c | 2 +- drivers/scsi/isci/init.c | 2 +- 7 files changed, 9 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 3ff267861541..bd22f8667eed 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -250,7 +250,7 @@ acpi_physical_address __init acpi_os_get_root_pointer(void) return acpi_rsdp; #endif - if (efi_enabled) { + if (efi_enabled(EFI_CONFIG_TABLES)) { if (efi.acpi20 != EFI_INVALID_TABLE_ADDR) return efi.acpi20; else if (efi.acpi != EFI_INVALID_TABLE_ADDR) diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index fd3ae6290d71..982f1f5f5742 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -471,7 +471,7 @@ void __init dmi_scan_machine(void) char __iomem *p, *q; int rc; - if (efi_enabled) { + if (efi_enabled(EFI_CONFIG_TABLES)) { if (efi.smbios == EFI_INVALID_TABLE_ADDR) goto error; diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index 7b1c37497c9a..1065119dff92 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -1782,7 +1782,7 @@ efivars_init(void) printk(KERN_INFO "EFI Variables Facility v%s %s\n", EFIVARS_VERSION, EFIVARS_DATE); - if (!efi_enabled) + if (!efi_enabled(EFI_RUNTIME_SERVICES)) return 0; /* For now we'll register the efi directory at /sys/firmware/efi */ @@ -1822,7 +1822,7 @@ err_put: static void __exit efivars_exit(void) { - if (efi_enabled) { + if (efi_enabled(EFI_RUNTIME_SERVICES)) { unregister_efivars(&__efivars); kobject_put(efi_kobj); } diff --git a/drivers/firmware/iscsi_ibft_find.c b/drivers/firmware/iscsi_ibft_find.c index 4da4eb9ae926..2224f1dc074b 100644 --- a/drivers/firmware/iscsi_ibft_find.c +++ b/drivers/firmware/iscsi_ibft_find.c @@ -99,7 +99,7 @@ unsigned long __init find_ibft_region(unsigned long *sizep) /* iBFT 1.03 section 1.4.3.1 mandates that UEFI machines will * only use ACPI for this */ - if (!efi_enabled) + if (!efi_enabled(EFI_BOOT)) find_ibft_in_mem(); if (ibft_addr) { diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index edfc54e41842..0d6562bb0c93 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -429,7 +429,8 @@ bool radeon_card_posted(struct radeon_device *rdev) { uint32_t reg; - if (efi_enabled && rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) + if (efi_enabled(EFI_BOOT) && + rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) return false; /* first check CRTCs */ diff --git a/drivers/platform/x86/ibm_rtl.c b/drivers/platform/x86/ibm_rtl.c index 7481146a5b47..97c2be195efc 100644 --- a/drivers/platform/x86/ibm_rtl.c +++ b/drivers/platform/x86/ibm_rtl.c @@ -244,7 +244,7 @@ static int __init ibm_rtl_init(void) { if (force) pr_warn("module loaded by force\n"); /* first ensure that we are running on IBM HW */ - else if (efi_enabled || !dmi_check_system(ibm_rtl_dmi_table)) + else if (efi_enabled(EFI_BOOT) || !dmi_check_system(ibm_rtl_dmi_table)) return -ENODEV; /* Get the address for the Extended BIOS Data Area */ diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index d73fdcfeb45a..2839baa82a5a 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -633,7 +633,7 @@ static int isci_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) return -ENOMEM; pci_set_drvdata(pdev, pci_info); - if (efi_enabled) + if (efi_enabled(EFI_RUNTIME_SERVICES)) orom = isci_get_efi_var(pdev); if (!orom) -- cgit v1.2.3 From e0094244e41c4d0c7ad69920681972fc45d8ce34 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Thu, 3 Jan 2013 09:02:37 +0000 Subject: samsung-laptop: Disable on EFI hardware It has been reported that running this driver on some Samsung laptops with EFI can cause those machines to become bricked as detailed in the following report, https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557 There have also been reports of this driver causing Machine Check Exceptions on recent EFI-enabled Samsung laptops, https://bugzilla.kernel.org/show_bug.cgi?id=47121 So disable it if booting from EFI since this driver relies on grovelling around in the BIOS memory map which isn't going to work. Cc: Corentin Chary Cc: Matthew Garrett Cc: Colin Ian King Cc: Steve Langasek Cc: Signed-off-by: Matt Fleming Signed-off-by: H. Peter Anvin --- drivers/platform/x86/samsung-laptop.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c index 71623a2ff3e8..d1f030053176 100644 --- a/drivers/platform/x86/samsung-laptop.c +++ b/drivers/platform/x86/samsung-laptop.c @@ -26,6 +26,7 @@ #include #include #include +#include #include /* @@ -1544,6 +1545,9 @@ static int __init samsung_init(void) struct samsung_laptop *samsung; int ret; + if (efi_enabled(EFI_BOOT)) + return -ENODEV; + quirks = &samsung_unknown; if (!force && !dmi_check_system(samsung_dmi_table)) return -ENODEV; -- cgit v1.2.3 From 0f640dca08330dfc7820d610578e5935b5e654b2 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Thu, 31 Jan 2013 14:11:14 +0000 Subject: dm thin: fix queue limits stacking thin_io_hints() is blindly copying the queue limits from the thin-pool which can lead to incorrect limits being set. The fix here simply deletes the thin_io_hints() hook which leaves the existing stacking infrastructure to set the limits correctly. When a thin-pool uses an MD device for the data device a thin device from the thin-pool must respect MD's constraints about disallowing a bio from spanning multiple chunks. Otherwise we can see problems. If the raid0 chunksize is 1152K and thin-pool chunksize is 256K I see the following md/raid0 error (with extra debug tracing added to thin_endio) when mkfs.xfs is executed against the thin device: md/raid0:md99: make_request bug: can't convert block across chunks or bigger than 1152k 6688 127 device-mapper: thin: bio sector=2080 err=-5 bi_size=130560 bi_rw=17 bi_vcnt=32 bi_idx=0 This extra DM debugging shows that the failing bio is spanning across the first and second logical 1152K chunk (sector 2080 + 255 takes the bio beyond the first chunk's boundary of sector 2304). So the bio splitting that DM is doing clearly isn't respecting the MD limits. max_hw_sectors_kb is 127 for both the thin-pool and thin device (queue_max_hw_sectors returns 255 so we'll excuse sysfs's lack of precision). So this explains why bi_size is 130560. But the thin device's max_hw_sectors_kb should be 4 (PAGE_SIZE) given that it doesn't have a .merge function (for bio_add_page to consult indirectly via dm_merge_bvec) yet the thin-pool does sit above an MD device that has a compulsory merge_bvec_fn. This scenario is exactly why DM must resort to sending single PAGE_SIZE bios to the underlying layer. Some additional context for this is available in the header for commit 8cbeb67a ("dm: avoid unsupported spanning of md stripe boundaries"). Long story short, the reason a thin device doesn't properly get configured to have a max_hw_sectors_kb of 4 (PAGE_SIZE) is that thin_io_hints() is blindly copying the queue limits from the thin-pool device directly to the thin device's queue limits. Fix this by eliminating thin_io_hints. Doing so is safe because the block layer's queue limits stacking already enables the upper level thin device to inherit the thin-pool device's discard and minimum_io_size and optimal_io_size limits that get set in pool_io_hints. But avoiding the queue limits copy allows the thin and thin-pool limits to be different where it is important, namely max_hw_sectors_kb. Reported-by: Daniel Browning Signed-off-by: Mike Snitzer Cc: stable@vger.kernel.org Signed-off-by: Alasdair G Kergon --- drivers/md/dm-thin.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 675ae5274016..5409607d4875 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -2746,19 +2746,9 @@ static int thin_iterate_devices(struct dm_target *ti, return 0; } -/* - * A thin device always inherits its queue limits from its pool. - */ -static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits) -{ - struct thin_c *tc = ti->private; - - *limits = bdev_get_queue(tc->pool_dev->bdev)->limits; -} - static struct target_type thin_target = { .name = "thin", - .version = {1, 6, 0}, + .version = {1, 7, 0}, .module = THIS_MODULE, .ctr = thin_ctr, .dtr = thin_dtr, @@ -2767,7 +2757,6 @@ static struct target_type thin_target = { .postsuspend = thin_postsuspend, .status = thin_status, .iterate_devices = thin_iterate_devices, - .io_hints = thin_io_hints, }; /*----------------------------------------------------------------*/ -- cgit v1.2.3 From fe7af2d3babefabd96a39e8b0d58ede88f3c7993 Mon Sep 17 00:00:00 2001 From: Alasdair G Kergon Date: Thu, 31 Jan 2013 14:23:36 +0000 Subject: dm: fix write same requests counting When processing write same requests, fix dm to send the configured number of WRITE SAME requests to the target rather than the number of discards, which is not always the same. Device-mapper WRITE SAME support was introduced by commit 23508a96cd2e857d57044a2ed7d305f2d9daf441 ("dm: add WRITE SAME support"). Signed-off-by: Alasdair G Kergon Acked-by: Mike Snitzer --- drivers/md/dm.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm.c b/drivers/md/dm.c index c72e4d5a9617..314a0e2faf79 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1188,6 +1188,7 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci, { struct dm_target *ti; sector_t len; + unsigned num_requests; do { ti = dm_table_find_target(ci->map, ci->sector); @@ -1200,7 +1201,8 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci, * reconfiguration might also have changed that since the * check was performed. */ - if (!get_num_requests || !get_num_requests(ti)) + num_requests = get_num_requests ? get_num_requests(ti) : 0; + if (!num_requests) return -EOPNOTSUPP; if (is_split_required && !is_split_required(ti)) @@ -1208,7 +1210,7 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci, else len = min(ci->sector_count, max_io_len(ci->sector, ti)); - __issue_target_requests(ci, ti, ti->num_discard_requests, len); + __issue_target_requests(ci, ti, num_requests, len); ci->sector += len; } while (ci->sector_count -= len); -- cgit v1.2.3 From c284979affcc6870a9a6545fc4b1adb3816dfcbf Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Thu, 31 Jan 2013 17:50:02 +0100 Subject: HID: i2c-hid: fix i2c_hid_output_raw_report i2c_hid_output_raw_report is used by hidraw to forward set_report requests. The current implementation of i2c_hid_set_report needs to take the report_id as an argument. The report_id is stored in the first byte of the buffer in argument of i2c_hid_output_raw_report. Not removing the report_id from the given buffer adds this byte 2 times in the command, leading to a non working command. Reported-by: Andrew Duggan Signed-off-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/i2c-hid/i2c-hid.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index 9ef222442ca0..5774ebf4298c 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -540,13 +540,24 @@ static int i2c_hid_output_raw_report(struct hid_device *hid, __u8 *buf, { struct i2c_client *client = hid->driver_data; int report_id = buf[0]; + int ret; if (report_type == HID_INPUT_REPORT) return -EINVAL; - return i2c_hid_set_report(client, + if (report_id) { + buf++; + count--; + } + + ret = i2c_hid_set_report(client, report_type == HID_FEATURE_REPORT ? 0x03 : 0x02, report_id, buf, count); + + if (report_id && ret >= 0) + ret++; /* add report_id to the number of transfered bytes */ + + return ret; } static int i2c_hid_parse(struct hid_device *hid) -- cgit v1.2.3