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eventfd: clean compile when CONFIG_EVENTFD=n 

Fix gcc warning and add parameter checking when CONFIG_EVENTFD=n:

fs/aio.c: In function 'aio_complete':
fs/aio.c:955: warning: statement with no effect

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Randy Dunlap 2007-06-27 14:09:48 -07:00 committed by Linus Torvalds
parent c0887eedb4
commit d2fd89962c
1 changed files with 2 additions and 1 deletions
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3
include/linux/eventfd.h
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@ -19,7 +19,8 @@ int eventfd_signal(struct file *file, int n);
#else /* CONFIG_EVENTFD */
#define eventfd_fget(fd) ERR_PTR(-ENOSYS)
#define eventfd_signal(f, n) 0
static inline int eventfd_signal(struct file *file, int n)
{ return 0; }
#endif /* CONFIG_EVENTFD */