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x86: fix asm memory constraints in local_64.h

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Use the shorter +m form rather than =m and m.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Harvey Harrison 2008-01-30 13:31:26 +01:00 committed by Ingo Molnar
parent 4ad0271834
commit 992b95920a
1 changed files with 14 additions and 16 deletions
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30
include/asm-x86/local_64.h
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@ -5,32 +5,30 @@ static inline void local_inc(local_t *l)
{
__asm__ __volatile__(
"incq %0"
:"=m" (l->a.counter)
:"m" (l->a.counter));
:"+m" (l->a.counter));
}
static inline void local_dec(local_t *l)
{
__asm__ __volatile__(
"decq %0"
:"=m" (l->a.counter)
:"m" (l->a.counter));
:"+m" (l->a.counter));
}
static inline void local_add(long i, local_t *l)
{
__asm__ __volatile__(
"addq %1,%0"
:"=m" (l->a.counter)
:"ir" (i), "m" (l->a.counter));
:"+m" (l->a.counter)
:"ir" (i));
}
static inline void local_sub(long i, local_t *l)
{
__asm__ __volatile__(
"subq %1,%0"
:"=m" (l->a.counter)
:"ir" (i), "m" (l->a.counter));
:"+m" (l->a.counter)
:"ir" (i));
}
/**
@ -48,8 +46,8 @@ static inline int local_sub_and_test(long i, local_t *l)
__asm__ __volatile__(
"subq %2,%0; sete %1"
:"=m" (l->a.counter), "=qm" (c)
:"ir" (i), "m" (l->a.counter) : "memory");
:"+m" (l->a.counter), "=qm" (c)
:"ir" (i) : "memory");
return c;
}
@ -67,8 +65,8 @@ static inline int local_dec_and_test(local_t *l)
__asm__ __volatile__(
"decq %0; sete %1"
:"=m" (l->a.counter), "=qm" (c)
:"m" (l->a.counter) : "memory");
:"+m" (l->a.counter), "=qm" (c)
: : "memory");
return c != 0;
}
@ -86,8 +84,8 @@ static inline int local_inc_and_test(local_t *l)
__asm__ __volatile__(
"incq %0; sete %1"
:"=m" (l->a.counter), "=qm" (c)
:"m" (l->a.counter) : "memory");
:"+m" (l->a.counter), "=qm" (c)
: : "memory");
return c != 0;
}
@ -106,8 +104,8 @@ static inline int local_add_negative(long i, local_t *l)
__asm__ __volatile__(
"addq %2,%0; sets %1"
:"=m" (l->a.counter), "=qm" (c)
:"ir" (i), "m" (l->a.counter) : "memory");
:"+m" (l->a.counter), "=qm" (c)
:"ir" (i) : "memory");
return c;
}