From: "Robert P. J. Day" <rpjday@xxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/headers_check.pl | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN scripts/headers_check.pl~scripts-headers_checkpl-correct-re-in-header-config-leak-check scripts/headers_check.pl
--- a/scripts/headers_check.pl~scripts-headers_checkpl-correct-re-in-header-config-leak-check
+++ a/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";
}
}
_
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