From 06330fc40e3f3034de4934ec347604b5e36c40c3 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 25 Jun 2015 15:03:11 -0700
Subject: [PATCH] checkpatch: avoid NOT_UNIFIED_DIFF errors on
 cover-letter.patch files

Make an exception for the "Does not appear to be a unified-diff" error
when scanning what appears to be git generated cover letters.

Signed-off-by: Joe Perches <joe@perches.com>
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index ef24f92..69c4716 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5614,7 +5614,7 @@ sub process {
 		exit(0);
 	}
 
-	if (!$is_patch) {
+	if (!$is_patch && $file !~ /cover-letter\.patch$/) {
 		ERROR("NOT_UNIFIED_DIFF",
 		      "Does not appear to be a unified-diff format patch\n");
 	}
-- 
2.7.4