linux-kernel - [PATCH] Warn on unnecessary spaces before quoted newlines

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Date:	Mon, 01 Feb 2010 12:34:15 -0800
From:	Joe Perches <joe@...ches.com>
To:	Andy Whitcroft <apw@...onical.com>
Cc:	linux-kernel@...r.kernel.org, Frans Pop <elendil@...net.nl>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] Warn on unnecessary spaces before quoted newlines

Signed-off-by: Joe Perches <joe@...ches.com>
---
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 3257d3d..4a4d55c 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1383,6 +1383,11 @@ sub process {
 			WARN("line over 80 characters\n" . $herecurr);
 		}
 
+# check for spaces before a quoted newline
+		if ($rawline =~ /^.*\".*\s\\n/) {
+			WARN("unnecessary whitespace before a quoted newline\n" . $herecurr);
+		}
+
 # check for adding lines without a newline.
 		if ($line =~ /^\+/ && defined $lines[$linenr] && $lines[$linenr] =~ /^\\ No newline at end of file/) {
 			WARN("adding a line without newline at end of file\n" . $herecurr);


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