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authorTilman Schmidt <tilman@imap.cc>2010-03-14 12:58:05 +0000
committerDavid S. Miller <davem@davemloft.net>2010-03-15 16:00:49 -0700
commit873a69a358a6b393fd8d9d92e193ec8895cac4d7 (patch)
tree985836029ec83bdaaf1a990955c7216180cf4f00 /drivers/isdn
parent3a0a3a6b92edf181f849ebd8417122392ba73a96 (diff)
gigaset: prune use of tty_buffer_request_room
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>, stable@kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn')
-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 a1bcbc21ff71..f0dc6c9cc283 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -628,7 +628,6 @@ void gigaset_if_receive(struct cardstate *cs,
if (tty == NULL)
gig_dbg(DEBUG_IF, "receive on closed device");
else {
- tty_buffer_request_room(tty, len);
tty_insert_flip_string(tty, buffer, len);
tty_flip_buffer_push(tty);
}