diff options
| -rw-r--r-- | drivers/usb/core/hcd.c | 31 | ||||
| -rw-r--r-- | drivers/usb/core/usb.c | 2 | ||||
| -rw-r--r-- | include/linux/usb/hcd.h | 16 |
3 files changed, 18 insertions, 31 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 86b3d1190500..83df1dde9c08 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -854,10 +854,10 @@ static ssize_t authorized_default_show(struct device *dev, { struct usb_device *rh_usb_dev = to_usb_device(dev); struct usb_bus *usb_bus = rh_usb_dev->bus; - struct usb_hcd *hcd; + struct usb_hcd *usb_hcd; - hcd = bus_to_hcd(usb_bus); - return snprintf(buf, PAGE_SIZE, "%u\n", !!HCD_DEV_AUTHORIZED(hcd)); + usb_hcd = bus_to_hcd(usb_bus); + return snprintf(buf, PAGE_SIZE, "%u\n", usb_hcd->authorized_default); } static ssize_t authorized_default_store(struct device *dev, @@ -868,16 +868,12 @@ static ssize_t authorized_default_store(struct device *dev, unsigned val; struct usb_device *rh_usb_dev = to_usb_device(dev); struct usb_bus *usb_bus = rh_usb_dev->bus; - struct usb_hcd *hcd; + struct usb_hcd *usb_hcd; - hcd = bus_to_hcd(usb_bus); + usb_hcd = bus_to_hcd(usb_bus); result = sscanf(buf, "%u\n", &val); if (result == 1) { - if (val) - set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); - else - clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); - + usb_hcd->authorized_default = val ? 1 : 0; result = size; } else { result = -EINVAL; @@ -2724,17 +2720,10 @@ int usb_add_hcd(struct usb_hcd *hcd, dev_info(hcd->self.controller, "%s\n", hcd->product_desc); /* Keep old behaviour if authorized_default is not in [0, 1]. */ - if (authorized_default < 0 || authorized_default > 1) { - if (hcd->wireless) - clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); - else - set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); - } else { - if (authorized_default) - set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); - else - clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags); - } + if (authorized_default < 0 || authorized_default > 1) + hcd->authorized_default = hcd->wireless ? 0 : 1; + else + hcd->authorized_default = authorized_default; set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); /* per default all interfaces are authorized */ diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index f8bbd0b6d9fe..8d5b2f4113cd 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -510,7 +510,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent, if (root_hub) /* Root hub always ok [and always wired] */ dev->authorized = 1; else { - dev->authorized = !!HCD_DEV_AUTHORIZED(usb_hcd); + dev->authorized = usb_hcd->authorized_default; dev->wusb = usb_bus_is_wusb(bus) ? 1 : 0; } return dev; diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 4d147277b30d..36ce3d215cad 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -58,6 +58,12 @@ * * Since "struct usb_bus" is so thin, you can't share much code in it. * This framework is a layer over that, and should be more sharable. + * + * @authorized_default: Specifies if new devices are authorized to + * connect by default or they require explicit + * user space authorization; this bit is settable + * through /sys/class/usb_host/X/authorized_default. + * For the rest is RO, so we don't lock to r/w it. */ /*-------------------------------------------------------------------------*/ @@ -115,7 +121,6 @@ struct usb_hcd { #define HCD_FLAG_RH_RUNNING 5 /* root hub is running? */ #define HCD_FLAG_DEAD 6 /* controller has died? */ #define HCD_FLAG_INTF_AUTHORIZED 7 /* authorize interfaces? */ -#define HCD_FLAG_DEV_AUTHORIZED 8 /* authorize devices? */ /* The flags can be tested using these macros; they are likely to * be slightly faster than test_bit(). @@ -135,14 +140,6 @@ struct usb_hcd { #define HCD_INTF_AUTHORIZED(hcd) \ ((hcd)->flags & (1U << HCD_FLAG_INTF_AUTHORIZED)) - /* - * Specifies if devices are authorized by default - * or they require explicit user space authorization; this bit is - * settable through /sys/class/usb_host/X/authorized_default - */ -#define HCD_DEV_AUTHORIZED(hcd) \ - ((hcd)->flags & (1U << HCD_FLAG_DEV_AUTHORIZED)) - /* Flags that get set only during HCD registration or removal. */ unsigned rh_registered:1;/* is root hub registered? */ unsigned rh_pollable:1; /* may we poll the root hub? */ @@ -153,6 +150,7 @@ struct usb_hcd { * support the new root-hub polling mechanism. */ unsigned uses_new_polling:1; unsigned wireless:1; /* Wireless USB HCD */ + unsigned authorized_default:1; unsigned has_tt:1; /* Integrated TT in root hub */ unsigned amd_resume_bug:1; /* AMD remote wakeup quirk */ unsigned can_do_streams:1; /* HC supports streams */ |