From bddf110a16cb4095ae2b8105133f4bdb618a8ea9 Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Sun, 14 Mar 2010 12:58:05 +0000 Subject: gigaset: prune use of tty_buffer_request_room commit 873a69a358a6b393fd8d9d92e193ec8895cac4d7 upstream. Calling tty_buffer_request_room() before tty_insert_flip_string() is unnecessary, costs CPU and for big buffers can mess up the multi-page allocation avoidance. Signed-off-by: Tilman Schmidt Acked-by: Karsten Keil CC: Alan Cox Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/isdn/gigaset/interface.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c index 6a8e1384e7b..b3065b8b245 100644 --- a/drivers/isdn/gigaset/interface.c +++ b/drivers/isdn/gigaset/interface.c @@ -635,7 +635,6 @@ void gigaset_if_receive(struct cardstate *cs, if ((tty = cs->tty) == NULL) gig_dbg(DEBUG_ANY, "receive on closed device"); else { - tty_buffer_request_room(tty, len); tty_insert_flip_string(tty, buffer, len); tty_flip_buffer_push(tty); } -- cgit v1.2.3-18-g5258