linux-kernel - [PATCH] SCRIPTS: Correct RE in header CONFIG leak check.

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Message-ID: <alpine.LFD.2.00.0905101141140.17364@localhost.localdomain>
Date:	Sun, 10 May 2009 11:45:04 -0400 (EDT)
From:	"Robert P. J. Day" <rpjday@...shcourse.ca>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
cc:	Andrew Morton <akpm@...l.org>
Subject: [PATCH] SCRIPTS: Correct RE in header CONFIG leak check.


Correct the regular expression in scripts/headers_check.pl to include
'_' as a valid character in the class; otherwise, the check will
report a "leaked" symbol of CONFIG_A_B_C as merely CONFIG_A.

Signed-off-by: Robert P. J. Day <rpjday@...shcourse.ca>

---

diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl
index 56f90a4..4414c43 100644
--- a/scripts/headers_check.pl
+++ b/scripts/headers_check.pl
@@ -70,7 +70,7 @@ sub check_prototypes

 sub check_config
 {
-	if ($line =~ m/[^a-zA-Z0-9_]+CONFIG_([a-zA-Z0-9]+)[^a-zA-Z0-9]/) {
+	if ($line =~ m/[^a-zA-Z0-9_]+CONFIG_([a-zA-Z0-9_]+)[^a-zA-Z0-9_]/) {
 		printf STDERR "$filename:$lineno: leaks CONFIG_$1 to userspace where it is not valid\n";
 	}
 }

========================================================================
Robert P. J. Day                               Waterloo, Ontario, CANADA

        Linux Consulting, Training and Annoying Kernel Pedantry.

Web page:                                          http://crashcourse.ca
Linked In:                             http://www.linkedin.com/in/rpjday
Twitter:                                       http://twitter.com/rpjday
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