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| author | Joe Perches <joe@perches.com> | 2014-08-06 16:10:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 18:01:28 -0700 |
| commit | e2826fd07029e14285c178b41b18f6edc3b15a84 (patch) | |
| tree | 498d3b5a5434aa0b4ae94cf0708d97650eb8327f /scripts/checkpatch.pl | |
| parent | 8d73e0e7dc18a39b120cb85ec675d59516e0af1a (diff) | |
| download | lwn-e2826fd07029e14285c178b41b18f6edc3b15a84.tar.gz lwn-e2826fd07029e14285c178b41b18f6edc3b15a84.zip | |
checkpatch: warn on unnecessary parentheses around references of foo->bar
Parentheses around &(foo->bar) and *(foo->bar) are unnecessary. Emit a
--strict only message on these uses.
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>
Diffstat (limited to 'scripts/checkpatch.pl')
| -rwxr-xr-x | scripts/checkpatch.pl | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index df4250a8ad51..9a89a0609bac 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3491,6 +3491,14 @@ sub process { } } +# check unnecessary parentheses around addressof/dereference single $Lvals +# ie: &(foo->bar) should be &foo->bar and *(foo->bar) should be *foo->bar + + while ($line =~ /(?:[^&]&\s*|\*)\(\s*($Ident\s*(?:$Member\s*)+)\s*\)/g) { + CHK("UNNECESSARY_PARENTHESES", + "Unnecessary parentheses around $1\n" . $herecurr); + } + #goto labels aren't indented, allow a single space however if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and !($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) { |