From 95c5010e9abb02973a942f0d4bd707090fed0e5f Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Sat, 27 Dec 2008 02:43:36 -0500
Subject: [PATCH] --- yaml --- r: 125430 b: refs/heads/master c:
 46b8af50ba5c072b74740c5fa8ba08e6eabb22f8 h: refs/heads/master v: v3

---
 [refs]                         |  2 +-
 trunk/scripts/headers_check.pl | 12 +++++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index edd4d09a76d6..a7127f5f5578 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7826005e5a53645d7aab7c13eda76126eadebf0b
+refs/heads/master: 46b8af50ba5c072b74740c5fa8ba08e6eabb22f8
diff --git a/trunk/scripts/headers_check.pl b/trunk/scripts/headers_check.pl
index 488a3b1f760f..5bdd9753007a 100644
--- a/trunk/scripts/headers_check.pl
+++ b/trunk/scripts/headers_check.pl
@@ -14,7 +14,9 @@
 #    Only include files located in asm* and linux* are checked.
 #    The rest are assumed to be system include files.
 #
-# 2) TODO: check for leaked CONFIG_ symbols
+# 2) It is checked that prototypes does not use "extern"
+#
+# 3) TODO: check for leaked CONFIG_ symbols
 
 use strict;
 
@@ -33,6 +35,7 @@
 	while ($line = <FH>) {
 		$lineno++;
 		check_include();
+		check_prototypes();
 	}
 	close FH;
 }
@@ -54,3 +57,10 @@ sub check_include
 		}
 	}
 }
+
+sub check_prototypes
+{
+	if ($line =~ m/^\s*extern\b/) {
+		printf STDERR "$filename:$lineno: extern's make no sense in userspace\n";
+	}
+}