[PATCH] Fix unix module

From: Rusty Russell <rusty@rustcorp.com.au>

# lsmod
Module                  Size  Used by
1                      26060  6
#

The compiler #define's unix to 1: we use -DKBUILD_MODNAME=unix.  We used to
#undef unix at the top of af_unix.c, but now the name is inserted by
modpost, that doesn't help.

#undef unix in modpost.c's generated C file.

net/unix/af_unix.c

@@ -82,8 +82,6 @@
  *		  with BSD names.
  */
 
-#undef unix	/* KBUILD_MODNAME */
-
 #include <linux/module.h>
 #include <linux/config.h>
 #include <linux/kernel.h>

scripts/modpost.c

@@ -487,6 +487,7 @@ add_header(struct buffer *b)
 	buf_printf(b, "\n");
 	buf_printf(b, "MODULE_INFO(vermagic, VERMAGIC_STRING);\n");
 	buf_printf(b, "\n");
+	buf_printf(b, "#undef unix\n"); /* We have a module called "unix" */
 	buf_printf(b, "struct module __this_module\n");
 	buf_printf(b, "__attribute__((section(\".gnu.linkonce.this_module\"))) = {\n");
 	buf_printf(b, " .name = __stringify(KBUILD_MODNAME),\n");