addc uses carry so xer is clobbered in csum_add()
Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr>
---
arch/powerpc/include/asm/checksum.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/checksum.h
b/arch/powerpc/include/asm/checksum.h
index e8d9ef4..d2ca07b 100644
--- a/arch/powerpc/include/asm/checksum.h
+++ b/arch/powerpc/include/asm/checksum.h
@@ -141,7 +141,7 @@ static inline __wsum csum_add(__wsum csum, __wsum addend)
#else
asm("addc %0,%0,%1;"
"addze %0,%0;"
- : "+r" (csum) : "r" (addend));
+ : "+r" (csum) : "r" (addend) : "xer");
return csum;
#endif
}
--
2.1.0
--
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