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signals: kill sigfindinword()

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It has no users and it doesn't look useful.  I do not know why/when it was
introduced, I can't even find any user in the git history.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Oleg Nesterov 2014-06-06 14:36:45 -07:00 committed by Linus Torvalds
parent 650226bd95
commit 36fac0a214
3 changed files with 0 additions and 20 deletions
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9
arch/m68k/include/asm/signal.h
View File

@ -60,15 +60,6 @@ static inline int __gen_sigismember(sigset_t *set, int _sig)
__const_sigismember(set,sig) : \
__gen_sigismember(set,sig))
static inline int sigfindinword(unsigned long word)
{
asm ("bfffo %1{#0,#0},%0"
: "=d" (word)
: "d" (word & -word)
: "cc");
return word ^ 31;
}
#endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */
#ifndef __uClinux__

6
arch/x86/include/asm/signal.h
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@ -92,12 +92,6 @@ static inline int __gen_sigismember(sigset_t *set, int _sig)
? __const_sigismember((set), (sig)) \
: __gen_sigismember((set), (sig)))
static inline int sigfindinword(unsigned long word)
{
asm("bsfl %1,%0" : "=r"(word) : "rm"(word) : "cc");
return word;
}
struct pt_regs;
#else /* __i386__ */

5
include/linux/signal.h
View File

@ -63,11 +63,6 @@ static inline int sigismember(sigset_t *set, int _sig)
return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
}
static inline int sigfindinword(unsigned long word)
{
return ffz(~word);
}
#endif /* __HAVE_ARCH_SIG_BITOPS */
static inline int sigisemptyset(sigset_t *set)