linux-kernel - [PATCH] checkpatch: Add #define foo "string" long line exception

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Date:	Fri, 03 Apr 2015 11:36:00 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andy Whitcroft <apw@...dowen.org>,
	Madalin-Cristian Bucur <madalin.bucur@...escale.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] checkpatch: Add #define foo "string" long line exception

There are #defines with long string constants like:
	#define foo "some really long string > 80 columns"
Add a long line exception for them.

Miscellanea:

Use the $String variable for slightly better readability

Reported-by: Madalin-Cristian Bucur <madalin.bucur@...escale.com>
Signed-off-by: Joe Perches <joe@...ches.com>
---
> > WARNING: line over 80 characters
> > #22: FILE: drivers/net/ethernet/freescale/dpaa/dpaa_eth_trace.h:47:
> > +#define TR_FMT "[%s] fqid=%d, fd: addr=0x%llx, format=%s, off=%u, len=%u, status=0x%08x"
> 
> That's a checkpatch defect.  Thanks.  I'll see about fixing it.

 scripts/checkpatch.pl | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 9a8b2bd..36d7e70 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2513,8 +2513,9 @@ sub process {
 #line length limit
 		if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ &&
 		    $rawline !~ /^.\s*\*\s*\@$Ident\s/ &&
-		    !($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(KERN_\S+\s*|[^"]*))?"[X\t]*"\s*(?:|,|\)\s*;)\s*$/ ||
-		    $line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) &&
+		    !($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(KERN_\S+\s*|[^"]*))?$String\s*(?:|,|\)\s*;)\s*$/ ||
+		      $line =~ /^\+\s*$String\s*(?:\s*|,|\)\s*;)\s*$/ ||
+		      $line =~ /^\+\s*#\s*define\s+\w+\s+$String$/) &&
 		    $length > $max_line_length)
 		{
 			WARN("LONG_LINE",


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