diff options
author | Stefani Seibold <stefani@seibold.net> | 2013-11-14 14:32:17 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-15 09:32:23 +0900 |
commit | 498d319bb512992ef0784c278fa03679f2f5649d (patch) | |
tree | 2793b41c3a98b858d24aa833ccc2bfb2f6d60974 /drivers/gpu/drm/drm_flip_work.c | |
parent | a019e48cfbfb358786326db3dbc1c565b8f14a56 (diff) | |
download | linux-498d319bb512992ef0784c278fa03679f2f5649d.tar.gz linux-498d319bb512992ef0784c278fa03679f2f5649d.tar.bz2 linux-498d319bb512992ef0784c278fa03679f2f5649d.zip |
kfifo API type safety
This patch enhances the type safety for the kfifo API. It is now safe
to put const data into a non const FIFO and the API will now generate a
compiler warning when reading from the fifo where the destination
address is pointing to a const variable.
As a side effect the kfifo_put() does now expect the value of an element
instead a pointer to the element. This was suggested Russell King. It
make the handling of the kfifo_put easier since there is no need to
create a helper variable for getting the address of a pointer or to pass
integers of different sizes.
IMHO the API break is okay, since there are currently only six users of
kfifo_put().
The code is also cleaner by kicking out the "if (0)" expressions.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Stefani Seibold <stefani@seibold.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/gpu/drm/drm_flip_work.c')
-rw-r--r-- | drivers/gpu/drm/drm_flip_work.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_flip_work.c b/drivers/gpu/drm/drm_flip_work.c index e788882d9021..f9c7fa3d0012 100644 --- a/drivers/gpu/drm/drm_flip_work.c +++ b/drivers/gpu/drm/drm_flip_work.c @@ -34,7 +34,7 @@ */ void drm_flip_work_queue(struct drm_flip_work *work, void *val) { - if (kfifo_put(&work->fifo, (const void **)&val)) { + if (kfifo_put(&work->fifo, val)) { atomic_inc(&work->pending); } else { DRM_ERROR("%s fifo full!\n", work->name); |