From ef3c005c0eb07a60949191bc6ee407d5f43cc502 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Tue, 11 Aug 2020 18:35:19 -0700 Subject: [PATCH] checkpatch: remove missing switch/case break test This test doesn't work well and newer compilers are much better at emitting this warning. Signed-off-by: Joe Perches Signed-off-by: Andrew Morton Cc: Cambda Zhu Link: http://lkml.kernel.org/r/7e25090c79f6a69d502ab8219863300790192fe2.camel@perches.com Signed-off-by: Linus Torvalds --- scripts/checkpatch.pl | 25 ------------------------- 1 file changed, 25 deletions(-) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 114af54c3194..2cbeae6d9aee 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -6543,31 +6543,6 @@ 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',