linux-toradex.git/drivers/net/usb, branch v3.3.5

net: usb: smsc75xx: fix mtu

2012-04-27T17:17:05+00:00

[ Upstream commit a99ff7d0123b19ecad3b589480b6542716ab6b52 ]

Make smsc75xx recalculate the hard_mtu after adjusting the
hard_header_len.

Without this, usbnet adjusts the MTU down to 1492 bytes, and the host is
unable to receive standard 1500-byte frames from the device.

Inspired by same fix on cdc_eem 78fb72f7936c01d5b426c03a691eca082b03f2b9.

Tested on ARM/Omap3 with EVB-LAN7500-LC.

Signed-off-by: Stephane Fillod 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

USB: Add Motorola Rokr E6 Id to the USBNet driver "zaurus"

2012-04-13T16:13:56+00:00

commit a2daf263107ba3eb6db33931881731fa51c95045 upstream.

Added Vendor/Device Id of Motorola Rokr E6 (22b8:6027) so it can be
recognized by the "zaurus" USBNet driver.
Applies to Linux 3.2.13 and 2.6.39.4.
Signed-off-by: Guan Xin 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

net: usb: cdc_eem: fix mtu

2012-04-13T16:13:50+00:00

[ Upstream commit 78fb72f7936c01d5b426c03a691eca082b03f2b9 ]

Make CDC EEM recalculate the hard_mtu after adjusting the
hard_header_len.

Without this, usbnet adjusts the MTU down to 1494 bytes, and the host is
unable to receive standard 1500-byte frames from the device.

Tested with the Linux USB Ethernet gadget.

Cc: Oliver Neukum 
Signed-off-by: Rabin Vincent 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

usbnet: don't clear urb->dev in tx_complete

2012-04-02T17:32:08+00:00

commit 5d5440a835710d09f0ef18da5000541ec98b537a upstream.

URB unlinking is always racing with its completion and tx_complete
may be called before or during running usb_unlink_urb, so tx_complete
must not clear urb->dev since it will be used in unlink path,
otherwise invalid memory accesses or usb device leak may be caused
inside usb_unlink_urb.

Cc: Alan Stern 
Cc: Oliver Neukum 
Signed-off-by: Ming Lei 
Acked-by: Greg Kroah-Hartman 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

usbnet: increase URB reference count before usb_unlink_urb

2012-04-02T17:32:08+00:00

commit 0956a8c20b23d429e79ff86d4325583fc06f9eb4 upstream.

Commit 4231d47e6fe69f061f96c98c30eaf9fb4c14b96d(net/usbnet: avoid
recursive locking in usbnet_stop()) fixes the recursive locking
problem by releasing the skb queue lock, but it makes usb_unlink_urb
racing with defer_bh, and the URB to being unlinked may be freed before
or during calling usb_unlink_urb, so use-after-free problem may be
triggerd inside usb_unlink_urb.

The patch fixes the use-after-free problem by increasing URB
reference count with skb queue lock held before calling
usb_unlink_urb, so the URB won't be freed until return from
usb_unlink_urb.

Cc: Sebastian Andrzej Siewior 
Cc: Alan Stern 
Cc: Oliver Neukum 
Reported-by: Dave Jones 
Signed-off-by: Ming Lei 
Acked-by: Greg Kroah-Hartman 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

net/usbnet: reserve headroom on rx skbs

2012-03-16T09:01:05+00:00

network drivers should reserve some headroom on incoming skbs so that we
dont need expensive reallocations, eg forwarding packets in tunnels.

This NET_SKB_PAD padding is done in various helpers, like
__netdev_alloc_skb_ip_align() in this patch, combining NET_SKB_PAD and
NET_IP_ALIGN magic.

Signed-off-by: Eric Dumazet 
Cc: Oliver Neukum 
Cc: Greg Kroah-Hartman 
Acked-by: Oliver Neukum 
Signed-off-by: David S. Miller

usb: asix: Patch for Sitecom LN-031

2012-03-11T22:52:12+00:00

This patch adds support for the Sitecom LN-031 USB adapter with a AX88178 chip.

Added USB id to find correct driver for AX88178 1000 Ethernet adapter.

Signed-off-by: Joerg Neikes 
Signed-off-by: David S. Miller

net/usbnet: avoid recursive locking in usbnet_stop()

2012-03-08T08:49:29+00:00

|kernel BUG at kernel/rtmutex.c:724!
|[] (rt_spin_lock_slowlock+0x108/0x2bc) from [] (defer_bh+0x1c/0xb4)
|[] (defer_bh+0x1c/0xb4) from [] (rx_complete+0x14c/0x194)
|[] (rx_complete+0x14c/0x194) from [] (usb_hcd_giveback_urb+0xa0/0xf0)
|[] (usb_hcd_giveback_urb+0xa0/0xf0) from [] (musb_giveback+0x34/0x40)
|[] (musb_giveback+0x34/0x40) from [] (musb_advance_schedule+0xb4/0x1c0)
|[] (musb_advance_schedule+0xb4/0x1c0) from [] (musb_cleanup_urb.isra.9+0x80/0x8c)
|[] (musb_cleanup_urb.isra.9+0x80/0x8c) from [] (musb_urb_dequeue+0xec/0x108)
|[] (musb_urb_dequeue+0xec/0x108) from [] (unlink1+0xbc/0xcc)
|[] (unlink1+0xbc/0xcc) from [] (usb_hcd_unlink_urb+0x54/0xa8)
|[] (usb_hcd_unlink_urb+0x54/0xa8) from [] (unlink_urbs.isra.17+0x2c/0x58)
|[] (unlink_urbs.isra.17+0x2c/0x58) from [] (usbnet_terminate_urbs+0x94/0x10c)
|[] (usbnet_terminate_urbs+0x94/0x10c) from [] (usbnet_stop+0x100/0x15c)
|[] (usbnet_stop+0x100/0x15c) from [] (__dev_close_many+0x94/0xc8)

defer_bh() takes the lock which is hold during unlink_urbs(). The safe
walk suggest that the skb will be removed from the list and this is done
by defer_bh() so it seems to be okay to drop the lock here.

Cc: stable@kernel.org
Reported-by: AnÃbal Almeida Pinto 
Signed-off-by: Sebastian Andrzej Siewior 
Acked-by: Oliver Neukum 
Signed-off-by: David S. Miller

Move Logitech Harmony 900 from cdc_ether to zaurus

2012-02-22T20:50:23+00:00

In the current kernel implementation, the Logitech Harmony 900 remote
control is matched to the cdc_ether driver through the generic
USB_CDC_SUBCLASS_MDLM entry.  However, this device appears to be of the
pseudo-MDLM (Belcarra) type, rather than the standard one.  This patch
blacklists the Harmony 900 from the cdc_ether driver and whitelists it for
the pseudo-MDLM driver in zaurus.

Signed-off-by: Scott Talbert 
Signed-off-by: David S. Miller

hso: memsetting wrong data in hso_get_count()

2012-02-22T20:31:54+00:00

The intent was to clear out the icount struct here, but we accidentally
clear stack memory instead.  It probably will lead to a NULL dereference
right away.

Signed-off-by: Dan Carpenter 
Signed-off-by: David S. Miller