drivers/net: replace __FUNCTION__ with __func__

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/wan/pc300_tty.c b/drivers/net/wan/pc300_tty.c
index 4518d0a..4917a94 100644
--- a/drivers/net/wan/pc300_tty.c
+++ b/drivers/net/wan/pc300_tty.c
@@ -548,7 +548,7 @@
 {
 	st_cpc_tty_area    *cpc_tty; 
 
-	CPC_TTY_DBG("%s: set:%x clear:%x\n", __FUNCTION__, set, clear);
+	CPC_TTY_DBG("%s: set:%x clear:%x\n", __func__, set, clear);
 
 	if (!tty || !tty->driver_data ) {
 	   	CPC_TTY_DBG("hdlcX-tty: no TTY to chars in buffer\n");