Commit 873a69a3 authored by Tilman Schmidt's avatar Tilman Schmidt Committed by David S. Miller

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: default avatarTilman Schmidt <tilman@imap.cc>
Acked-by: default avatarKarsten Keil <keil@b1-systems.de>
CC: Alan Cox <alan@lxorguk.ukuu.org.uk>, stable@kernel.org
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3a0a3a6b
...@@ -628,7 +628,6 @@ void gigaset_if_receive(struct cardstate *cs, ...@@ -628,7 +628,6 @@ void gigaset_if_receive(struct cardstate *cs,
if (tty == NULL) if (tty == NULL)
gig_dbg(DEBUG_IF, "receive on closed device"); gig_dbg(DEBUG_IF, "receive on closed device");
else { else {
tty_buffer_request_room(tty, len);
tty_insert_flip_string(tty, buffer, len); tty_insert_flip_string(tty, buffer, len);
tty_flip_buffer_push(tty); tty_flip_buffer_push(tty);
} }
......
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