[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, 8 insertions, 8 deletions

diff --git a/include/asm-s390/semaphore.h b/include/asm-s390/semaphore.h
index 32cdc69f39f4..dbce058aefa9 100644
--- a/include/asm-s390/semaphore.h
+++ b/include/asm-s390/semaphore.h
@@ -85,17 +85,17 @@ static inline int down_trylock(struct semaphore * sem)
          *       sem->count.counter = --new_val;
          * In the ppc code this is called atomic_dec_if_positive.
          */
-        __asm__ __volatile__ (
-                "   l    %0,0(%3)\n"
-                "0: ltr  %1,%0\n"
-                "   jle  1f\n"
-                "   ahi  %1,-1\n"
-                "   cs   %0,%1,0(%3)\n"
-                "   jl   0b\n"
+        asm volatile(
+                "       l       %0,0(%3)\n"
+                "0:     ltr     %1,%0\n"
+                "       jle     1f\n"
+                "       ahi     %1,-1\n"
+                "       cs      %0,%1,0(%3)\n"
+                "       jl      0b\n"
                 "1:"
                 : "=&d" (old_val), "=&d" (new_val), "=m" (sem->count.counter)
                 : "a" (&sem->count.counter), "m" (sem->count.counter)
-                : "cc", "memory" );
+                : "cc", "memory");
         return old_val <= 0;
 }