linux-kernel - Re: checkpatch WARNING: patch prefix 'b' exists, appears to be a -p0 patch

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Date:	Wed, 19 Oct 2011 13:22:20 +0200
From:	Wolfram Sang <w.sang@...gutronix.de>
To:	Jonathan Cameron <jic23@....ac.uk>
Cc:	David Rientjes <rientjes@...gle.com>,
	Joe Perches <joe@...ches.com>,
	Andy Whitcroft <apw@...onical.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: checkpatch WARNING: patch prefix 'b' exists, appears to be a
 -p0 patch

> Maybe something as simple as a comment in the checkpatch source
> to say that such a file / directory can cause false positives?

I'd hope this error message would be clear enough, what do you think?

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 3dfc471..19e4de7 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1506,7 +1506,7 @@ sub process {
 			if (!$file && $tree && $p1_prefix ne '' &&
 			    -e "$root/$p1_prefix") {
 				WARN("PATCH_PREFIX",
-				     "patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");
+				     "patch prefix '$p1_prefix' exists as file/directory. Make sure this isn't a -p0 patch\n");
 			}
 
 			if ($realfile =~ m@...clude/asm/@) {

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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