[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-i386/bitops.h b/include/asm-i386/bitops.h
index 65679aca4b22..fe0819fe9c64 100644
--- a/include/asm-i386/bitops.h
+++ b/include/asm-i386/bitops.h
@@ -43,7 +43,7 @@ static inline void set_bit(int nr, volatile unsigned long * addr)
 {
         __asm__ __volatile__( LOCK_PREFIX
                 "btsl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"Ir" (nr));
 }
 
@@ -60,7 +60,7 @@ static inline void __set_bit(int nr, volatile unsigned long * addr)
 {
         __asm__(
                 "btsl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"Ir" (nr));
 }
 
@@ -78,7 +78,7 @@ static inline void clear_bit(int nr, volatile unsigned long * addr)
 {
         __asm__ __volatile__( LOCK_PREFIX
                 "btrl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"Ir" (nr));
 }
 
@@ -86,7 +86,7 @@ static inline void __clear_bit(int nr, volatile unsigned long * addr)
 {
         __asm__ __volatile__(
                 "btrl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"Ir" (nr));
 }
 #define smp_mb__before_clear_bit()      barrier()
@@ -105,7 +105,7 @@ static inline void __change_bit(int nr, volatile unsigned long * addr)
 {
         __asm__ __volatile__(
                 "btcl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"Ir" (nr));
 }
 
@@ -123,7 +123,7 @@ static inline void change_bit(int nr, volatile unsigned long * addr)
 {
         __asm__ __volatile__( LOCK_PREFIX
                 "btcl %1,%0"
-                :"=m" (ADDR)
+                :"+m" (ADDR)
                 :"Ir" (nr));
 }
 
@@ -142,7 +142,7 @@ static inline int test_and_set_bit(int nr, volatile unsigned long * addr)
 
         __asm__ __volatile__( LOCK_PREFIX
                 "btsl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"Ir" (nr) : "memory");
         return oldbit;
 }
@@ -162,7 +162,7 @@ static inline int __test_and_set_bit(int nr, volatile unsigned long * addr)
 
         __asm__(
                 "btsl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"Ir" (nr));
         return oldbit;
 }
@@ -182,7 +182,7 @@ static inline int test_and_clear_bit(int nr, volatile unsigned long * addr)
 
         __asm__ __volatile__( LOCK_PREFIX
                 "btrl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"Ir" (nr) : "memory");
         return oldbit;
 }
@@ -202,7 +202,7 @@ static inline int __test_and_clear_bit(int nr, volatile unsigned long *addr)
 
         __asm__(
                 "btrl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"Ir" (nr));
         return oldbit;
 }
@@ -214,7 +214,7 @@ static inline int __test_and_change_bit(int nr, volatile unsigned long *addr)
 
         __asm__ __volatile__(
                 "btcl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"Ir" (nr) : "memory");
         return oldbit;
 }
@@ -233,7 +233,7 @@ static inline int test_and_change_bit(int nr, volatile unsigned long* addr)
 
         __asm__ __volatile__( LOCK_PREFIX
                 "btcl %2,%1\n\tsbbl %0,%0"
-                :"=r" (oldbit),"=m" (ADDR)
+                :"=r" (oldbit),"+m" (ADDR)
                 :"Ir" (nr) : "memory");
         return oldbit;
 }