diff options
| author | Ivo van Doorn <ivdoorn@gmail.com> | 2008-06-16 21:57:11 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-06-27 00:49:16 +0400 |
| commit | c1d35dfa0f7d75ba14c442143a9ad8e232d3edfb (patch) | |
| tree | 9266a9be1068c66b6c80f0f5a73e47af88acd584 /drivers/net/wireless/rt2x00/rt2x00usb.h | |
| parent | d74f5ba473b915e5d4ea1ed391984bb62d9de8b1 (diff) | |
| download | linux-c1d35dfa0f7d75ba14c442143a9ad8e232d3edfb.tar.xz | |
rt2x00: Fix sparse warning on nested container_of()
Sparse produces warnings about nested contain_of() statements,
this means that lines like:
interface_to_usbdev(to_usb_interface(rt2x00dev->dev));
will upset sparse.
Add a new macro to rt2x00usb.h which will convert to device
structure to the usb_device pointer in 2 steps to prevent this
sparse warning.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00usb.h')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.h b/drivers/net/wireless/rt2x00/rt2x00usb.h index b1187c812e7f..aad794adf52c 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.h +++ b/drivers/net/wireless/rt2x00/rt2x00usb.h @@ -26,6 +26,12 @@ #ifndef RT2X00USB_H #define RT2X00USB_H +#define to_usb_device_intf(d) \ +({ \ + struct usb_interface *intf = to_usb_interface(d); \ + interface_to_usbdev(intf); \ +}) + /* * This variable should be used with the * usb_driver structure initialization. |