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arm64 signal.h: add valid_signal() function

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This function was added for x86 by commit 140f813d77 ("fix:
differences in behavior of sigaction between Linux and Mckernel")

The x86 and arm files are actually pretty close and could use
factoring...

Change-Id: Ia8820fd2f824d898610b384a3e137c96aadbc911
This commit is contained in:
Dominique Martinet
2018-07-27 14:38:45 +09:00
committed by Dominique Martinet
parent 3e3f3c5590
commit b93e14f695
1 changed files with 5 additions and 0 deletions
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5
arch/arm64/kernel/include/signal.h
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@ -9,6 +9,11 @@
#define _NSIG_BPW 64
#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
static inline int valid_signal(unsigned long sig)
{
return sig <= _NSIG ? 1 : 0;
}
typedef unsigned long int __sigset_t;
#define __sigmask(sig) (((__sigset_t) 1) << ((sig) - 1))