linux-kernel - [PATCH] checkpatch: Allow case labels with ranges

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Date:	Mon, 21 Jul 2014 06:13:26 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andy Whitcroft <apw@...onical.com>,
	Lee Jones <lee.jones@...aro.org>, linux-kernel@...r.kernel.org
Subject: [PATCH] checkpatch: Allow case labels with ranges

The MISSING_BREAK / fallthrough test does not support
gcc's extension for case labels with ranges.

Add it.

Signed-off-by: Joe Perches <joe@...ches.com>
Reported-by: Lee Jones <lee.jones@...aro.org>
---
 scripts/checkpatch.pl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index dc72a9b..2258497 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4767,7 +4767,7 @@ sub process {
 		}
 
 # check for case / default statements not preceeded by break/fallthrough/switch
-		if ($line =~ /^.\s*(?:case\s+(?:$Ident|$Constant)\s*|default):/) {
+		if ($line =~ /^.\s*(?:case\s+(?:$Ident|$Constant)\s*(?:\.\.\.\s*(?:$Ident|$Constant)\s*)?|default):/) {
 			my $has_break = 0;
 			my $has_statement = 0;
 			my $count = 0;
@@ -4778,7 +4778,7 @@ sub process {
 				my $fline = $lines[$prevline - 1];
 				last if ($fline =~ /^\@\@/);
 				next if ($fline =~ /^\-/);
-				next if ($fline =~ /^.(?:\s*(?:case\s+(?:$Ident|$Constant)[\s$;]*|default):[\s$;]*)*$/);
+				next if ($fline =~ /^.(?:\s*(?:case\s+(?:$Ident|$Constant(?:\s*\.\.\.\s*(?:$Ident|$Constant))?)[\s$;]*|default):[\s$;]*)*$/);
 				$has_break = 1 if ($rline =~ /fall[\s_-]*(through|thru)/i);
 				next if ($fline =~ /^.[\s$;]*$/);
 				$has_statement = 1;


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