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(parent: 36061e3) | patch
checkpatch: try to avoid mask and shift errors
authorJoe Perches <joe@perches.com>
Wed, 10 Dec 2014 23:51:46 +0000 (15:51 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 11 Dec 2014 01:41:11 +0000 (17:41 -0800)
commitabb08a53883ed7afbe3f0ac9444805042f473a63
treeeed4ba0882422e17763c65ceef9ce66d11bf79bctree | snapshot
parent36061e380618201a558e01d2c2ac6217ea331523commit | diff
checkpatch: try to avoid mask and shift errors

Shift has a higher precedence that mask so warn when a mask then shift
operation is done without parentheses around the mask.

This test works well for a right shift, but the left shift is pretty
commonly done correctly so only warn on the right shift.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
scripts/checkpatch.pl diff | blob | history
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