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Subject[RFC PATCH 6/8] signals: Round up _NSIG_WORDS
Date
When needed, round _NSIG_WORDS up for generic and x86 architectures.

Signed-off-by: Walt Drummond <walt@drummond.us>
---
arch/x86/include/asm/signal.h | 2 +-
include/uapi/asm-generic/signal.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/signal.h b/arch/x86/include/asm/signal.h
index 9bac7c6e524c..d8e2efe6cd46 100644
--- a/arch/x86/include/asm/signal.h
+++ b/arch/x86/include/asm/signal.h
@@ -16,7 +16,7 @@
# define _NSIG_BPW 64
#endif

-#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
+#define _NSIG_WORDS ((_NSIG + _NSIG_BPW - 1) / _NSIG_BPW)

typedef unsigned long old_sigset_t; /* at least 32 bits */

diff --git a/include/uapi/asm-generic/signal.h b/include/uapi/asm-generic/signal.h
index f634822906e4..3c4cc9b8378e 100644
--- a/include/uapi/asm-generic/signal.h
+++ b/include/uapi/asm-generic/signal.h
@@ -6,7 +6,7 @@

#define _NSIG 64
#define _NSIG_BPW __BITS_PER_LONG
-#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
+#define _NSIG_WORDS ((_NSIG + _NSIG_BPW - 1) / _NSIG_BPW)

#define SIGHUP 1
#define SIGINT 2
--
2.30.2
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