diff options
| author | Alan Cox <alan@linux.intel.com> | 2010-02-18 17:44:01 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-02 23:55:12 +0100 |
| commit | a108bfcb372d8c4452701039308fb95747911c59 (patch) | |
| tree | 3528621937692e28081f71131cddc3130e2641ad /drivers/usb/serial/mos7720.c | |
| parent | USB: tty: Add a function to insert a string of characters with the same flag (diff) | |
| download | linux-a108bfcb372d8c4452701039308fb95747911c59.tar.xz linux-a108bfcb372d8c4452701039308fb95747911c59.zip | |
USB: tty: Prune uses of tty_request_room in the USB layer
We have lots of callers that do not need to do this in the first place.
Remove the calls as they both cost CPU and for big buffers can mess up the
multi-page allocation avoidance.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/mos7720.c')
| -rw-r--r-- | drivers/usb/serial/mos7720.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 546b29f73c2c..0d47f2c4d59f 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -290,7 +290,6 @@ static void mos7720_bulk_in_callback(struct urb *urb) tty = tty_port_tty_get(&port->port); if (tty && urb->actual_length) { - tty_buffer_request_room(tty, urb->actual_length); tty_insert_flip_string(tty, data, urb->actual_length); tty_flip_buffer_push(tty); } |