[PATCH 3/6] uvc: fix smatch warning

[Hans Verkuil]

drivers/media/usb/uvc/uvc_video.c: drivers/media/usb/uvc/uvc_video.c:1893 
uvc_video_start_transfer() warn: argument 2 to %u specifier is cast from pointer

Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
---
 drivers/media/usb/uvc/uvcvideo.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index 9b41b14ce076..c7c1baa90dea 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -620,8 +620,10 @@ struct uvc_streaming {
             (uvc_urb) < &(uvc_streaming)->uvc_urb[UVC_URBS]; \
             ++(uvc_urb))
 
-#define uvc_urb_index(uvc_urb) \
-       (unsigned int)((uvc_urb) - (&(uvc_urb)->stream->uvc_urb[0]))
+static inline u32 uvc_urb_index(const struct uvc_urb *uvc_urb)
+{
+       return uvc_urb - &uvc_urb->stream->uvc_urb[0];
+}
 
 struct uvc_device_info {
        u32     quirks;
-- 
2.20.1