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checkpatch: add test for keywords not starting on tabstops 

It's somewhat common and in general a defect for c90 keywords to
not start on a tabstop.

Add a test for this condition and warn when it occurs.

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 17:04:05 -07:00 committed by Linus Torvalds
parent f39e1769bb
commit a91e8994f2
1 changed files with 13 additions and 0 deletions
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13
scripts/checkpatch.pl
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@ -2755,6 +2755,19 @@ sub process {
"Logical continuations should be on the previous line\n" . $hereprev);
}
# check indentation starts on a tab stop
if ($^V && $^V ge 5.10.0 &&
$sline =~ /^\+\t+( +)(?:$c90_Keywords\b|\{\s*$|\}\s*(?:else\b|while\b|\s*$))/) {
my $indent = length($1);
if ($indent % 8) {
if (WARN("TABSTOP",
"Statements should start on a tabstop\n" . $herecurr) &&
$fix) {
$fixed[$fixlinenr] =~ s@(^\+\t+) +@$1 . "\t" x ($indent/8)@e;
}
}
}
# check multi-line statement indentation matches previous line
if ($^V && $^V ge 5.10.0 &&
$prevline =~ /^\+([ \t]*)((?:$c90_Keywords(?:\s+if)\s*)|(?:$Declare\s*)?(?:$Ident|\(\s*\*\s*$Ident\s*\))\s*|$Ident\s*=\s*$Ident\s*)\(.*(\&\&|\|\||,)\s*$/) {