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checkpatch: fix false positive MISSING_BREAK warnings with --file

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Using --file mode can give false positives with MISSING_BREAK
fall-through warnings on simple but long multiple consecutive case
statements.

Look for all lines before a case statement for a switch or a statement
when using --file mode.

Fix a misspelling of preceded while there.

Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
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 2014-08-06 16:11:25 -07:00 committed by Linus Torvalds
parent 1813087dbc
commit e81f239b4d
1 changed files with 2 additions and 2 deletions
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4
scripts/checkpatch.pl
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@ -4811,13 +4811,13 @@ sub process {
}
}
# check for case / default statements not preceeded by break/fallthrough/switch
# check for case / default statements not preceded by break/fallthrough/switch
if ($line =~ /^.\s*(?:case\s+(?:$Ident|$Constant)\s*|default):/) {
my $has_break = 0;
my $has_statement = 0;
my $count = 0;
my $prevline = $linenr;
while ($prevline > 1 && $count < 3 && !$has_break) {
while ($prevline > 1 && ($file || $count < 3) && !$has_break) {
$prevline--;
my $rline = $rawlines[$prevline - 1];
my $fline = $lines[$prevline - 1];