From de323f22a83b024b7432e813609c6efb74b1bbfc Mon Sep 17 00:00:00 2001
From: "akpm@linux-foundation.org" <akpm@linux-foundation.org>
Date: Tue, 30 Nov 2010 13:51:13 -0800
Subject: [PATCH] headers_check: better search for functions in headers
Some headers don't bother with "extern" in function prototypes, which
results in said prototypes being unnoticed and exported to userland.
This patch slightly improves detection of such cases by checking for C
type names as well in the beginning of a line.
Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: WANG Cong <amwang@redhat.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
scripts/headers_check.pl | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl
index 50d6cfd1fa778..e0e25a1c2c12b 100644
--- a/scripts/headers_check.pl
+++ b/scripts/headers_check.pl
@@ -64,7 +64,7 @@ sub check_include
sub check_declarations
{
- if ($line =~m/^\s*extern\b/) {
+ if ($line =~m/^(\s*extern|unsigned|char|short|int|long|void)\b/) {
printf STDERR "$filename:$lineno: " .
"userspace cannot call function or variable " .
"defined in the kernel\n";
--
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