Messages in this thread Patch in this message | | | From | Joe Perches <> | Subject | [PATCH] checkpatch: Add --strict test for switch/default missing break | Date | Mon, 10 Dec 2012 10:08:49 -0800 |
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switch default case is sometimes written as "default:;". This can cause new cases added below the default to be defective.
Suggest adding a break; after empty default cases to avoid fallthrough defects.
Fixed indentation in the other semicolon test above it.
Suggested-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Joe Perches <joe@perches.com> --- scripts/checkpatch.pl | 18 ++++++++++++++++-- 1 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index f18750e..73302d8 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3450,8 +3450,22 @@ sub process { # check for multiple semicolons if ($line =~ /;\s*;\s*$/) { - WARN("ONE_SEMICOLON", - "Statements terminations use 1 semicolon\n" . $herecurr); + WARN("ONE_SEMICOLON", + "Statements terminations use 1 semicolon\n" . $herecurr); + } + +# check for switch/default statements without a break; + if ($^V && $^V ge 5.10.0 && + defined $stat && + $stat =~ /^\+[$;\s]*(?:case[$;\s]+\w+[$;\s]*:[$;\s]*|)*[$;\s]*\bdefault[$;\s]*:[$;\s]*;/g) { + my $ctx = ''; + my $herectx = $here . "\n"; + my $cnt = statement_rawlines($stat); + for (my $n = 0; $n < $cnt; $n++) { + $herectx .= raw_line($linenr, $n) . "\n"; + } + WARN("DEFAULT_NO_BREAK", + "switch default: should use break\n" . $herectx); } # check for gcc specific __FUNCTION__ -- 1.7.8.112.g3fd21
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