From 26f15caaf993bbb6f246a30aad3c96a349564528 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Sat, 14 Feb 2015 11:10:14 +0100
Subject: [PATCH] s390/cmpxchg: simplify cmpxchg_double
Since sizeof(long) == 4 is always false now, simplify cmpxchg_double a bit.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
arch/s390/include/asm/cmpxchg.h | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h
index 6259895fcd97..4eadec466b8c 100644
--- a/arch/s390/include/asm/cmpxchg.h
+++ b/arch/s390/include/asm/cmpxchg.h
@@ -80,15 +80,10 @@ extern void __cmpxchg_double_called_with_bad_pointer(void);
({ \
__typeof__(p1) __p1 = (p1); \
__typeof__(p2) __p2 = (p2); \
- int __ret; \
BUILD_BUG_ON(sizeof(*(p1)) != sizeof(long)); \
BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long)); \
VM_BUG_ON((unsigned long)((__p1) + 1) != (unsigned long)(__p2));\
- if (sizeof(long) == 4) \
- __ret = __cmpxchg_double_4(__p1, __p2, o1, o2, n1, n2); \
- else \
- __ret = __cmpxchg_double_8(__p1, __p2, o1, o2, n1, n2); \
- __ret; \
+ __cmpxchg_double_8(__p1, __p2, o1, o2, n1, n2); \
})
#define system_has_cmpxchg_double() 1
--
2.50.1