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power: improve inline asm memory constraints

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Use "+m" rather than a combination of "=m" and "m" for improved
clarity and consistency.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Linus Torvalds
2006-07-08 15:00:28 -07:00
parent a496e25dfb
commit e2a3d40258
3 changed files with 32 additions and 32 deletions
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16
include/asm-powerpc/bitops.h
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@@ -65,8 +65,8 @@ static __inline__ void set_bit(int nr, volatile unsigned long *addr)
PPC405_ERR77(0,%3)
PPC_STLCX "%0,0,%3\n"
"bne- 1b"
: "=&r"(old), "=m"(*p)
: "r"(mask), "r"(p), "m"(*p)
: "=&r" (old), "+m" (*p)
: "r" (mask), "r" (p)
: "cc" );
}
@@ -82,8 +82,8 @@ static __inline__ void clear_bit(int nr, volatile unsigned long *addr)
PPC405_ERR77(0,%3)
PPC_STLCX "%0,0,%3\n"
"bne- 1b"
: "=&r"(old), "=m"(*p)
: "r"(mask), "r"(p), "m"(*p)
: "=&r" (old), "+m" (*p)
: "r" (mask), "r" (p)
: "cc" );
}
@@ -99,8 +99,8 @@ static __inline__ void change_bit(int nr, volatile unsigned long *addr)
PPC405_ERR77(0,%3)
PPC_STLCX "%0,0,%3\n"
"bne- 1b"
: "=&r"(old), "=m"(*p)
: "r"(mask), "r"(p), "m"(*p)
: "=&r" (old), "+m" (*p)
: "r" (mask), "r" (p)
: "cc" );
}
@@ -179,8 +179,8 @@ static __inline__ void set_bits(unsigned long mask, unsigned long *addr)
"or %0,%0,%2\n"
PPC_STLCX "%0,0,%3\n"
"bne- 1b"
: "=&r" (old), "=m" (*addr)
: "r" (mask), "r" (addr), "m" (*addr)
: "=&r" (old), "+m" (*addr)
: "r" (mask), "r" (addr)
: "cc");
}