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m68k: fix sigset_t accessor functions

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The sigaddset/sigdelset/sigismember functions that are implemented with
bitfield insn cannot allow the sigset argument to be placed in a data
register since the sigset is wider than 32 bits.  Remove the "d"
constraint from the asm statements.

The effect of the bug is that sending RT signals does not work, the signal
number is truncated modulo 32.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Andreas Schwab 2012-11-17 22:27:04 +01:00 committed by Geert Uytterhoeven
parent f4a75d2eb7
commit 34fa78b59c
1 changed files with 3 additions and 3 deletions
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6
arch/m68k/include/asm/signal.h
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@ -41,7 +41,7 @@ struct k_sigaction {
static inline void sigaddset(sigset_t *set, int _sig)
{
asm ("bfset %0{%1,#1}"
: "+od" (*set)
: "+o" (*set)
: "id" ((_sig - 1) ^ 31)
: "cc");
}
@ -49,7 +49,7 @@ static inline void sigaddset(sigset_t *set, int _sig)
static inline void sigdelset(sigset_t *set, int _sig)
{
asm ("bfclr %0{%1,#1}"
: "+od" (*set)
: "+o" (*set)
: "id" ((_sig - 1) ^ 31)
: "cc");
}
@ -65,7 +65,7 @@ static inline int __gen_sigismember(sigset_t *set, int _sig)
int ret;
asm ("bfextu %1{%2,#1},%0"
: "=d" (ret)
: "od" (*set), "id" ((_sig-1) ^ 31)
: "o" (*set), "id" ((_sig-1) ^ 31)
: "cc");
return ret;
}