checkpatch: emit fewer kmalloc_array/kcalloc conversion warnings
authorJoe Perches <joe@perches.com>
Wed, 6 Aug 2014 23:10:55 +0000 (16:10 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 7 Aug 2014 01:01:28 +0000 (18:01 -0700)
commite367455a9f25b11e02b7ea7678a7b146bdd6667e
tree40e3868341e7c764930d13adfd7f53ca304f2737
parentf27c95db1176b41c6c87d9d3480d15efbca8f3ff
checkpatch: emit fewer kmalloc_array/kcalloc conversion warnings

Avoid matching allocs that appear to be known small multiplications of a
sizeof with a constant because gcc as of 4.8 cannot optimize the code in
a calloc() exactly the same way as an alloc().

Look for numeric constants or what appear to be upper case only macro
#defines.

Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Theodore Ts'o <tytso@mit.edu>
Original-patch-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
scripts/checkpatch.pl