serial: replace remaining __FUNCTION__ occurrences

__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: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/serial/sa1100.c b/drivers/serial/sa1100.c
index 67b23389..62b3858 100644
--- a/drivers/serial/sa1100.c
+++ b/drivers/serial/sa1100.c
@@ -655,7 +655,7 @@
 void __init sa1100_register_uart(int idx, int port)
 {
 	if (idx >= NR_PORTS) {
-		printk(KERN_ERR "%s: bad index number %d\n", __FUNCTION__, idx);
+		printk(KERN_ERR "%s: bad index number %d\n", __func__, idx);
 		return;
 	}
 
@@ -682,7 +682,7 @@
 		break;
 
 	default:
-		printk(KERN_ERR "%s: bad port number %d\n", __FUNCTION__, port);
+		printk(KERN_ERR "%s: bad port number %d\n", __func__, port);
 	}
 }