From: Patrick McHardy <kaber@trash.net>
Date: Fri, 24 Mar 2006 06:07:34 +0000 (-0800)
Subject: [MODULES]: Don't allow statically declared exports
X-Git-Tag: v2.6.17-rc1~738^2~9
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1a8feed1743ec8d2af1dafa7c5321679f0a3e4f;p=linux-2.6

[MODULES]: Don't allow statically declared exports

Add an extern declaration for exported symbols to make the compiler warn
on symbols declared statically.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/linux/module.h b/include/linux/module.h
index 70bd843c71..d9569151c1 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -183,6 +183,7 @@ void *__symbol_get_gpl(const char *symbol);
 
 /* For every exported symbol, place a struct in the __ksymtab section */
 #define __EXPORT_SYMBOL(sym, sec)				\
+	extern typeof(sym) sym;					\
 	__CRC_SYMBOL(sym, sec)					\
 	static const char __kstrtab_##sym[]			\
 	__attribute__((section("__ksymtab_strings")))		\