From cb710eca6820493add0ddd3d7e8e3ee53f2b6e57 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 26 Oct 2010 14:23:20 -0700
Subject: [PATCH] scripts/checkpatch.pl: add warnings for static char that
 could be static const char

Add warnings for possible missing const uses of
	static char foo[] = "bar"
    that could be
	static const char foo[] = "bar"
and
	static const char *foo[] = {"bar", "baz"}
    that could be
	static const char * const foo[] = {"bar", "baz"}

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index c1e7fb3eab44..2ec5fc6a4046 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1869,6 +1869,18 @@ sub process {
 				$herecurr);
 		}
 
+# check for static const char * arrays.
+		if ($line =~ /\bstatic\s+const\s+char\s*\*\s*(\w+)\s*\[\s*\]\s*=\s*/) {
+			WARN("static const char * array should probably be static const char * const\n" .
+				$herecurr);
+               }
+
+# check for static char foo[] = "bar" declarations.
+		if ($line =~ /\bstatic\s+char\s+(\w+)\s*\[\s*\]\s*=\s*"/) {
+			WARN("static char array declaration should probably be static const char\n" .
+				$herecurr);
+               }
+
 # check for new typedefs, only function parameters and sparse annotations
 # make sense.
 		if ($line =~ /\btypedef\s/ &&
-- 
2.20.1