wireless: replace __FUNCTION__ with __func__

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 8b10ea4..82c28dc 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -53,11 +53,11 @@
  */
 #define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...)	\
 	printk(__kernlvl "%s -> %s: %s - " __msg,			\
-	       wiphy_name((__dev)->hw->wiphy), __FUNCTION__, __lvl, ##__args)
+	       wiphy_name((__dev)->hw->wiphy), __func__, __lvl, ##__args)
 
 #define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...)	\
 	printk(__kernlvl "%s -> %s: %s - " __msg,		\
-	       KBUILD_MODNAME, __FUNCTION__, __lvl, ##__args)
+	       KBUILD_MODNAME, __func__, __lvl, ##__args)
 
 #ifdef CONFIG_RT2X00_DEBUG
 #define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...)	\