[patch 1/6] s390: Fix gcc warning about unused return values.

[Martin Schwidefsky]

From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>

[S390] Fix gcc warning about unused return values.

Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
---

 include/asm-s390/system.h |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diff -urpN linux-2.6/include/asm-s390/system.h linux-2.6-patched/include/asm-s390/system.h
--- linux-2.6/include/asm-s390/system.h	2006-07-18 13:40:33.000000000 +0200
+++ linux-2.6-patched/include/asm-s390/system.h	2006-07-18 13:40:42.000000000 +0200
@@ -128,8 +128,13 @@ extern void account_system_vtime(struct 
 
 #define nop() __asm__ __volatile__ ("nop")
 
-#define xchg(ptr,x) \
-  ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(void *)(ptr),sizeof(*(ptr))))
+#define xchg(ptr,x)							  \
+({									  \
+	__typeof__(*(ptr)) __ret;					  \
+	__ret = (__typeof__(*(ptr)))					  \
+		__xchg((unsigned long)(x), (void *)(ptr),sizeof(*(ptr))); \
+	__ret;								  \
+})
 
 static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
 {
-
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