From 90ad30e5b2a759333f06eee64e59a0d886d02036 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 10 Dec 2014 15:51:59 -0800
Subject: [PATCH] checkpatch: add test for consecutive string fragments

Emit a warning when single line string coalescing occurs.

Code that uses compiler string concatenation on a single line like:

    printk("foo" "bar");

is generally better to read concatenated like:

    printk("foobar");

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d06b6be2841e..5e63dce2e428 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4464,6 +4464,12 @@ sub process {
 			    "Concatenated strings should use spaces between elements\n" . $herecurr);
 		}
 
+# uncoalesced string fragments
+		if ($line =~ /"X*"\s*"/) {
+			WARN("STRING_FRAGMENTS",
+			     "Consecutive strings are generally better as a single string\n" . $herecurr);
+		}
+
 # warn about #if 0
 		if ($line =~ /^.\s*\#\s*if\s+0\b/) {
 			CHK("REDUNDANT_CODE",