flag parameters: check magic constants

This patch adds test that ensure the boundary conditions for the various
constants introduced in the previous patches is met.  No code is generated.

[akpm@linux-foundation.org: fix alpha]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ulrich Drepper
2008-07-23 21:29:42 -07:00
committed by Linus Torvalds
parent 510df2dd48
commit e38b36f325
6 changed files with 25 additions and 0 deletions

View File

@@ -184,6 +184,10 @@ asmlinkage long sys_timerfd_create(int clockid, int flags)
int ufd;
struct timerfd_ctx *ctx;
/* Check the TFD_* constants for consistency. */
BUILD_BUG_ON(TFD_CLOEXEC != O_CLOEXEC);
BUILD_BUG_ON(TFD_NONBLOCK != O_NONBLOCK);
if (flags & ~(TFD_CLOEXEC | TFD_NONBLOCK))
return -EINVAL;
if (clockid != CLOCK_MONOTONIC &&