[PATCH 34/39] scripts/headers_check.pl: correct RE in header CONFIG leak check

Sam Ravnborg
2009-06-05T23:47:17Z

From: Robert P. J. Day <rpjday@crashcourse.ca>

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.

This patch will make no difference whatsoever in the current kernel tree
as the call to the perl routine that does that check is currently
commented out:

&check_include();
&check_asm_types();
&check_sizetypes();
&check_prototypes();
# Dropped for now. Too much noise &check_config();

However, I noticed that problem when I was building the yum downloadable
kernel source rpm for fedora 11 (beta), which *does* run that check, and
that's where the problem became obvious.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
scripts/headers_check.pl | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl
index 3923888..e3fb949 100644
--- a/scripts/headers_check.pl
+++ b/scripts/headers_check.pl
@@ -74,7 +74,7 @@ sub check_declarations

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";
}
}
--
1.6.3.rc3.40.g75b44