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| author | Julia Lawall <julia@diku.dk> | 2008-08-21 01:44:53 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-12 13:36:51 +0200 |
| commit | e9e24cee67bf71b929b646387f286e907cbde5fc (patch) | |
| tree | fd3be5482d9a17cd5df69ca8e0cd0ba5c0d4cb5c /drivers/media/video/uvc | |
| parent | V4L/DVB (8725): drx397xD.c sparse annotations (diff) | |
| download | linux-e9e24cee67bf71b929b646387f286e907cbde5fc.tar.xz linux-e9e24cee67bf71b929b646387f286e907cbde5fc.zip | |
V4L/DVB (8729): Use DIV_ROUND_UP
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /
(d)) but is perhaps more readable.
An extract of the semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@haskernel@
@@
@depends on haskernel@
expression n,d;
@@
(
- (n + d - 1) / d
+ DIV_ROUND_UP(n,d)
|
- (n + (d - 1)) / d
+ DIV_ROUND_UP(n,d)
)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP((n),d)
+ DIV_ROUND_UP(n,d)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP(n,(d))
+ DIV_ROUND_UP(n,d)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/uvc')
| -rw-r--r-- | drivers/media/video/uvc/uvc_video.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c index 6854ac78a161..03dc3a519e4c 100644 --- a/drivers/media/video/uvc/uvc_video.c +++ b/drivers/media/video/uvc/uvc_video.c @@ -655,7 +655,7 @@ static int uvc_init_video_isoc(struct uvc_video_device *video, if (size > UVC_MAX_FRAME_SIZE) return -EINVAL; - npackets = (size + psize - 1) / psize; + npackets = DIV_ROUND_UP(size, psize); if (npackets > UVC_MAX_ISO_PACKETS) npackets = UVC_MAX_ISO_PACKETS; |