isdn: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/isdn/hisax/hisax_fcpcipnp.c b/drivers/isdn/hisax/hisax_fcpcipnp.c
index 76043de..539b2e0 100644
--- a/drivers/isdn/hisax/hisax_fcpcipnp.c
+++ b/drivers/isdn/hisax/hisax_fcpcipnp.c
@@ -935,7 +935,7 @@
 	pnp_disable_dev(pdev);
 	retval = pnp_activate_dev(pdev);
 	if (retval < 0) {
-		printk(KERN_WARNING "%s: pnp_activate_dev(%s) ret(%d)\n", __FUNCTION__,
+		printk(KERN_WARNING "%s: pnp_activate_dev(%s) ret(%d)\n", __func__,
 			(char *)dev_id->driver_data, retval);
 		goto err_free;
 	}