From 5e79d96eed306a8b4af67b3f35f6867edfabeebc Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 5 Mar 2010 13:43:55 -0800
Subject: checkpatch: warn on unnecessary spaces before quoted newlines

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index cf4e44cf3c27..a4d74344d805 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1394,6 +1394,11 @@ 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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