[PATCH] modules: fix sparse warning for every MODULE_PARM

sparse complains about every MODULE_PARM used in a module: warning: symbol
'__parm_foo' was not declared.  Should it be static?

The fix is to split declaration and initialization.  While MODULE_PARM is
obsolete, it's not something sparse should report.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/linux/module.h

@@ -554,7 +554,9 @@ static inline void MODULE_PARM_(void) { }
 #ifdef MODULE
 /* DEPRECATED: Do not use. */
 #define MODULE_PARM(var,type)						    \
-struct obsolete_modparm __parm_##var __attribute__((section("__obsparm"))) = \
+extern struct obsolete_modparm __parm_##var \
+__attribute__((section("__obsparm"))); \
+struct obsolete_modparm __parm_##var = \
 { __stringify(var), type, &MODULE_PARM_ }; \
 __MODULE_PARM_TYPE(var, type);
 #else