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checkpatch: improve CONSTANT_COMPARISON test for structure members

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A "." dereference to an all uppercase structure member can be
incorrectly reported as a CONSTANT_COMPARISON.

ie: "if (table[i].PANELID == tempdx)"

Fix it by checking for "." before the constant test.

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>
This commit is contained in:
Joe Perches 2016-05-20 17:04:02 -07:00 • committed by Linus Torvalds
parent 2d6327459e
commit f39e1769bb
1 changed files with 1 additions and 1 deletions
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2
scripts/checkpatch.pl
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@ -4291,7 +4291,7 @@ sub process {
my $comp = $3;
my $to = $4;
my $newcomp = $comp;
if ($lead !~ /$Operators\s*$/ &&
if ($lead !~ /(?:$Operators|\.)\s*$/ &&
$to !~ /^(?:Constant|[A-Z_][A-Z0-9_]*)$/ &&
WARN("CONSTANT_COMPARISON",
"Comparisons should place the constant on the right side of the test\n" . $herecurr) &&