diff --git a/sys/compat/linuxkpi/common/include/linux/printk.h b/sys/compat/linuxkpi/common/include/linux/printk.h
--- a/sys/compat/linuxkpi/common/include/linux/printk.h
+++ b/sys/compat/linuxkpi/common/include/linux/printk.h
@@ -94,4 +94,10 @@
 	0;							\
 })
 
+#define	FW_BUG		"[Firmware Bug]: "
+#define	FW_WARN		"[Firmware Warn]: "
+#define	FW_INFO		"[Firmware Info]: "
+#define	HW_ERR		"[Hardware Error]: "
+#define	DEPRECATED	"[Deprecated]: "
+
 #endif					/* _LINUXKPI_LINUX_PRINTK_H_ */