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authorJesper Juhl <juhl-lkml@dif.dk>2005-05-01 08:59:13 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-01 08:59:13 -0700
commite5bdd883a189243541e7a132385580703b049102 (patch)
tree6e56919829118d5aa6aa89991edaba764825fab2 /ipc
parent1c72d46d98e4eb16f1a1b38eba94cc3aa8022cfa (diff)
[PATCH] new valid_signal() function
This patch adds a new function valid_signal() that tests if its argument is a valid signal number. The reasons for adding this new function are: - some code currently testing _NSIG directly has off-by-one errors. Using this function instead avoids such errors. - some code currently tests unsigned signal numbers for <0 which is pointless and generates warnings when building with gcc -W. Using this function instead avoids such warnings. I considered various places to add this function but eventually settled on include/linux/signal.h as the most logical place for it. If there's some reason this is a bad choice then please let me know (hints as to a better location are then welcome of course). Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'ipc')
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