Allow arch to initialize arch field of the module structure

This will later allow an arch to add module specific information via linker
generated tables instead of poking directly in the module object structure.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/module.h b/include/linux/module.h
index 6d3dc9c..792d483 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -356,6 +356,9 @@
 	   keeping pointers to this stuff */
 	char *args;
 };
+#ifndef MODULE_ARCH_INIT
+#define MODULE_ARCH_INIT {}
+#endif
 
 /* FIXME: It'd be nice to isolate modules during init, too, so they
    aren't used before they (may) fail.  But presently too much code
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 480e18b..113dc77 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1343,6 +1343,7 @@
 		buf_printf(b, "#ifdef CONFIG_MODULE_UNLOAD\n"
 			      " .exit = cleanup_module,\n"
 			      "#endif\n");
+	buf_printf(b, " .arch = MODULE_ARCH_INIT,\n");
 	buf_printf(b, "};\n");
 }