Re: [PATCH 1/2] perf: Fix compilation on gcc 4.0.2

[Eric Dumazet <eric.dumazet@gmail.com>]

Le jeudi 18 novembre 2010 à 14:31 +0100, Andi Kleen a écrit :
> > Should we be using more of the kernel makefile magic to detect this?
> 
> In theory yes, but the two warnings didn't seem to be too useful
> to me so it's probably not worth it just for those two.
> 
> -Andi
> 

Is the second case because of the __always_inline in
util/include/linux/bitops.h ?

Not sure why its needed for test_bit() ?

diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index bb4ac2e..a1459f2 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -13,7 +13,7 @@ static inline void set_bit(int nr, unsigned long *addr)
 	addr[nr / BITS_PER_LONG] |= 1UL << (nr % BITS_PER_LONG);
 }
 
-static __always_inline int test_bit(unsigned int nr, const unsigned long *addr)
+static inline int test_bit(unsigned int nr, const unsigned long *addr)
 {
 	return ((1UL << (nr % BITS_PER_LONG)) &
 		(((unsigned long *)addr)[nr / BITS_PER_LONG])) != 0;