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authorTilman Schmidt <tilman@imap.cc>2010-03-14 12:58:05 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2010-04-01 15:58:24 -0700
commitbddf110a16cb4095ae2b8105133f4bdb618a8ea9 (patch)
tree22436b12e34f217857cb83f54551f014a548ad15
parent4ea1533c2bfcda2eccf6167a565385ece50b9cb9 (diff)
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 <tilman@imap.cc> Acked-by: Karsten Keil <keil@b1-systems.de> CC: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/isdn/gigaset/interface.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index 6a8e1384e7bd..b3065b8b2456 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);
}