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authorJoe Perches <joe@perches.com>2015-09-10 01:37:58 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-10 23:29:01 +0300
commitc5595fa2f1ce3c1a74dbd2ddc949257e80d81dc0 (patch)
tree3351ed229a4f64df859ad49de118210dd50fa367 /fs/coda
parent54507b5183cc4f8e4f1a58a312e1f30c130658b7 (diff)
downloadlinux-c5595fa2f1ce3c1a74dbd2ddc949257e80d81dc0.tar.xz
checkpatch: add constant comparison on left side test
"CONST <comparison> variable" checks like: if (NULL != foo) and while (0 < bar(...)) where a constant (or what appears to be a constant like an upper case identifier) is on the left of a comparison are generally preferred to be written using the constant on the right side like: if (foo != NULL) and while (bar(...) > 0) Add a test for this. Add a --fix option too, but only do it when the code is immediately surrounded by parentheses to avoid misfixing things like "(0 < bar() + constant)" Signed-off-by: Joe Perches <joe@perches.com> Cc: Nicolas Morey Chaisemartin <nmorey@kalray.eu> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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