#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/if.h>
---- a/net/wireless/core.c.orig
-+++ b/net/wireless/core.c.orig
-@@ -4,6 +4,7 @@
- * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
- */
-
-+#undef pr_fmt
- #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
- #include <linux/if.h>
--- a/net/wireless/lib80211.c
+++ b/net/wireless/lib80211.c
@@ -13,6 +13,7 @@