[S390] Inline assembly cleanup.

Major cleanup of all s390 inline assemblies. They now have a common
coding style. Quite a few have been shortened, mainly by using register
asm variables. Use of the EX_TABLE macro helps  as well. The atomic ops,
bit ops and locking inlines new use the Q-constraint if a newer gcc
is used.  That results in slightly better code.

Thanks to Christian Borntraeger for proof reading the changes.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/asm-s390/lowcore.h b/include/asm-s390/lowcore.h
index 18695d10ded..06583ed0bde 100644
--- a/include/asm-s390/lowcore.h
+++ b/include/asm-s390/lowcore.h
@@ -359,7 +359,7 @@ extern struct _lowcore *lowcore_ptr[];
 
 static inline void set_prefix(__u32 address)
 {
-        __asm__ __volatile__ ("spx %0" : : "m" (address) : "memory" );
+        asm volatile("spx %0" : : "m" (address) : "memory");
 }
 
 #define __PANIC_MAGIC           0xDEADC0DE