linux-kernel - [PATCH] checkpatch: Allow commit descriptions on separate line from commit id

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Date:	Wed, 27 Aug 2014 18:38:21 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andy Whitcroft <apw@...onical.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Joe Lawrence <joe.lawrence@...atus.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] checkpatch: Allow commit descriptions on separate line from
 commit id

The general form for commit id and description is

'Commit <12+hexdigits> ("commit description/subject line")'

But commit logs often have relatively long commit ids and
the commit description is on a separate line like:

Some explanation as to why commit <12+hexdigits>
("commit description/subject line") is improved.

Allow this form.

Signed-off-by: Joe Perches <joe@...ches.com>
Suggested-by: Joe Lawrence <joe.lawrence@...atus.com
Suggested-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d89857d..4d869dd 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2133,7 +2133,10 @@ sub process {
 # Check for improperly formed commit descriptions
 		if ($in_commit_log &&
 		    $line =~ /\bcommit\s+[0-9a-f]{5,}/i &&
-		    $line !~ /\b[Cc]ommit [0-9a-f]{12,40} \("/) {
+		    !($line =~ /\b[Cc]ommit [0-9a-f]{12,40} \("/ ||
+		      ($line =~ /\b[Cc]ommit [0-9a-f]{12,40}\s*$/ &&
+		       defined $rawlines[$linenr] &&
+		       $rawlines[$linenr] =~ /^\s*\("/))) {
 			$line =~ /\b(c)ommit\s+([0-9a-f]{5,})/i;
 			my $init_char = $1;
 			my $orig_commit = lc($2);


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