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authorMike Frysinger <vapier.adi@gmail.com>2008-10-16 23:55:41 +0800
committerBryan Wu <cooloney@kernel.org>2008-10-16 23:55:41 +0800
commit1390da4ee75168b6e4d8354e93e3b5f0a0291f2f (patch)
treebd6aa0036949693e73b1f78d409d1ed9e300980b
parented061b7ac8afb1181c6195aa502a8a7ef7ac3015 (diff)
downloadvexpress-lsk-1390da4ee75168b6e4d8354e93e3b5f0a0291f2f.tar.gz
Blackfin arch: make sure cycles is marked as volatile so gcc doesnt reorder on us
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
-rw-r--r--arch/blackfin/include/asm/timex.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/blackfin/include/asm/timex.h b/arch/blackfin/include/asm/timex.h
index 22b0806161b..248aeb06680 100644
--- a/arch/blackfin/include/asm/timex.h
+++ b/arch/blackfin/include/asm/timex.h
@@ -16,7 +16,7 @@ typedef unsigned long long cycles_t;
static inline cycles_t get_cycles(void)
{
unsigned long tmp, tmp2;
- __asm__("%0 = cycles; %1 = cycles2;" : "=d"(tmp), "=d"(tmp2));
+ __asm__ __volatile__("%0 = cycles; %1 = cycles2;" : "=d"(tmp), "=d"(tmp2));
return tmp | ((cycles_t)tmp2 << 32);
}