* + checkpatch-remove-missing-switch-case-break-test.patch added to -mm tree
@ 2020-08-04 3:22 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2020-08-04 3:22 UTC (permalink / raw)
To: cambda, joe, mm-commits
The patch titled
Subject: checkpatch: remove missing switch/case break test
has been added to the -mm tree. Its filename is
checkpatch-remove-missing-switch-case-break-test.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/checkpatch-remove-missing-switch-case-break-test.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/checkpatch-remove-missing-switch-case-break-test.patch
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------------------------------------------------------
From: Joe Perches <joe@perches.com>
Subject: checkpatch: remove missing switch/case break test
This test doesn't work well and newer compilers are much better
at emitting this warning.
Link: http://lkml.kernel.org/r/7e25090c79f6a69d502ab8219863300790192fe2.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Cambda Zhu <cambda@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
scripts/checkpatch.pl | 25 -------------------------
1 file changed, 25 deletions(-)
--- a/scripts/checkpatch.pl~checkpatch-remove-missing-switch-case-break-test
+++ a/scripts/checkpatch.pl
@@ -6551,31 +6551,6 @@ sub process {
}
}
-# 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 && ($file || $count < 3) && !$has_break) {
- $prevline--;
- my $rline = $rawlines[$prevline - 1];
- my $fline = $lines[$prevline - 1];
- last if ($fline =~ /^\@\@/);
- next if ($fline =~ /^\-/);
- next if ($fline =~ /^.(?:\s*(?:case\s+(?:$Ident|$Constant)[\s$;]*|default):[\s$;]*)*$/);
- $has_break = 1 if ($rline =~ /fall[\s_-]*(through|thru)/i);
- next if ($fline =~ /^.[\s$;]*$/);
- $has_statement = 1;
- $count++;
- $has_break = 1 if ($fline =~ /\bswitch\b|\b(?:break\s*;[\s$;]*$|exit\s*\(\b|return\b|goto\b|continue\b)/);
- }
- if (!$has_break && $has_statement) {
- WARN("MISSING_BREAK",
- "Possible switch case/default not preceded by break or fallthrough comment\n" . $herecurr);
- }
- }
-
# check for /* fallthrough */ like comment, prefer fallthrough;
my @fallthroughs = (
'fallthrough',
_
Patches currently in -mm which might be from joe@perches.com are
checkpatch-test-git_dir-changes.patch
const_structscheckpatch-add-regulator_ops.patch
checkpatch-add-test-for-possible-misuse-of-is_enabled-without-config_.patch
checkpatch-add-fix-option-for-assign_in_if.patch
checkpatch-add-test-for-repeated-words.patch
checkpatch-remove-missing-switch-case-break-test.patch
nilfs2-convert-__nilfs_msg-to-integrate-the-level-and-format.patch
nilfs2-use-a-more-common-logging-style.patch
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2020-08-04 3:22 + checkpatch-remove-missing-switch-case-break-test.patch added to -mm tree akpm
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