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author | Jesper Juhl <juhl-lkml@dif.dk> | 2005-05-01 08:59:13 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-01 08:59:13 -0700 |
commit | e5bdd883a189243541e7a132385580703b049102 (patch) | |
tree | 6e56919829118d5aa6aa89991edaba764825fab2 /kernel/exit.c | |
parent | 1c72d46d98e4eb16f1a1b38eba94cc3aa8022cfa (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 'kernel/exit.c')
0 files changed, 0 insertions, 0 deletions