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| author | Jesse Millan <jessem@cs.pdx.edu> | 2005-07-28 21:15:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-28 21:46:02 -0700 |
| commit | 8d224d32c28c165f7100a670d61d64dd15d49a1e (patch) | |
| tree | 7629d258137c67e395f471fccb846a7a421dab13 /include | |
| parent | 07291d431ce6c6660c35dd4e5e980a406dc3629a (diff) | |
| download | linux-8d224d32c28c165f7100a670d61d64dd15d49a1e.tar.gz linux-8d224d32c28c165f7100a670d61d64dd15d49a1e.tar.bz2 linux-8d224d32c28c165f7100a670d61d64dd15d49a1e.zip | |
[PATCH] x86_64: Fix gcc 4 warning in sched_find_first_bit
This patch eliminates the GCC4 warning on the x86_64 platform:
kernel/sched.c:1824: warning: control may reach end of non-void function
'sched_find_first_bit' being inlined.
The change follows the lead of others, i.e. it is guaranteed that at least
one of b[0], b[1], or b[2] will have a bit set and evaluate to true. That
being said, GCC4.0.0 notices that the code flow does not return anything if
b[0], b[1] and b[2] are not true. Since we know better, if it's not b[0] or
b[1], it has to be b[2].
Signed-off-by: Jesse Millan <jessem@cs.pdx.edu>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86_64/bitops.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/asm-x86_64/bitops.h b/include/asm-x86_64/bitops.h index a31bb99be53f..05a0d374404b 100644 --- a/include/asm-x86_64/bitops.h +++ b/include/asm-x86_64/bitops.h @@ -348,8 +348,7 @@ static inline int sched_find_first_bit(const unsigned long *b) return __ffs(b[0]); if (b[1]) return __ffs(b[1]) + 64; - if (b[2]) - return __ffs(b[2]) + 128; + return __ffs(b[2]) + 128; } /** |