[PATCH] i386/x86-64: Use input/output dependencies for bitops

Noticed by Andreas Schwab

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 12 insertions, 12 deletions

diff --git a/include/asm-x86_64/bitops.h b/include/asm-x86_64/bitops.h
index a4d5d0909453..3638ffff87fd 100644
--- a/include/asm-x86_64/bitops.h
+++ b/include/asm-x86_64/bitops.h
@@ -29,7 +29,7 @@ static __inline__ void set_bit(int nr, volatile void * addr)
 {
         __asm__ __volatile__( LOCK_PREFIX
                 "btsl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"dIr" (nr) : "memory");
 }
 
@@ -46,7 +46,7 @@ static __inline__ void __set_bit(int nr, volatile void * addr)
 {
         __asm__ volatile(
                 "btsl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"dIr" (nr) : "memory");
 }
 
@@ -64,7 +64,7 @@ static __inline__ void clear_bit(int nr, volatile void * addr)
 {
         __asm__ __volatile__( LOCK_PREFIX
                 "btrl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"dIr" (nr));
 }
 
@@ -72,7 +72,7 @@ static __inline__ void __clear_bit(int nr, volatile void * addr)
 {
         __asm__ __volatile__(
                 "btrl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"dIr" (nr));
 }
 
@@ -92,7 +92,7 @@ static __inline__ void __change_bit(int nr, volatile void * addr)
 {
         __asm__ __volatile__(
                 "btcl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"dIr" (nr));
 }
 
@@ -109,7 +109,7 @@ static __inline__ void change_bit(int nr, volatile void * addr)
 {
         __asm__ __volatile__( LOCK_PREFIX
                 "btcl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"dIr" (nr));
 }
 
@@ -127,7 +127,7 @@ static __inline__ int test_and_set_bit(int nr, volatile void * addr)
 
         __asm__ __volatile__( LOCK_PREFIX
                 "btsl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"dIr" (nr) : "memory");
         return oldbit;
 }
@@ -147,7 +147,7 @@ static __inline__ int __test_and_set_bit(int nr, volatile void * addr)
 
         __asm__(
                 "btsl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"dIr" (nr));
         return oldbit;
 }
@@ -166,7 +166,7 @@ static __inline__ int test_and_clear_bit(int nr, volatile void * addr)
 
         __asm__ __volatile__( LOCK_PREFIX
                 "btrl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"dIr" (nr) : "memory");
         return oldbit;
 }
@@ -186,7 +186,7 @@ static __inline__ int __test_and_clear_bit(int nr, volatile void * addr)
 
         __asm__(
                 "btrl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"dIr" (nr));
         return oldbit;
 }
@@ -198,7 +198,7 @@ static __inline__ int __test_and_change_bit(int nr, volatile void * addr)
 
         __asm__ __volatile__(
                 "btcl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"dIr" (nr) : "memory");
         return oldbit;
 }
@@ -217,7 +217,7 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr)
 
         __asm__ __volatile__( LOCK_PREFIX
                 "btcl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"dIr" (nr) : "memory");
         return oldbit;
 }