--- a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c
@@ -16,8 +16,10 @@
  * File contents: support functions for PCI/PCIe
  */
 
+#undef pr_fmt
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/printk.h>
 #include <linux/delay.h>
 
 #include <defs.h>