From: Jesse Millan Subject: [KJ] [PATCH] GCC4 sched.c (x86_64) warning: control may reach end of non-void function 'sched_find_first_bit' being inlined 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 --- bitops.h | 3 +-- 1 files changed, 1 insertion(+), 2 deletions(-) Index: quilt/include/asm-x86_64/bitops.h =================================================================== --- quilt.orig/include/asm-x86_64/bitops.h +++ quilt/include/asm-x86_64/bitops.h @@ -348,8 +348,7 @@ static inline int sched_find_first_bit(c 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; } /**