diff options
| author | Alan Cox <alan@linux.intel.com> | 2010-02-18 11:44:01 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-02 17:55:12 -0500 |
| commit | a108bfcb372d8c4452701039308fb95747911c59 (patch) | |
| tree | 3528621937692e28081f71131cddc3130e2641ad /drivers/usb/serial/io_ti.c | |
| parent | 2832fc11f1360668482beec06dbcd631ae5f0cf1 (diff) | |
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/io_ti.c')
| -rw-r--r-- | drivers/usb/serial/io_ti.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 98e50456ad79..aa876f71f228 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c | |||
| @@ -1820,7 +1820,6 @@ static void edge_tty_recv(struct device *dev, struct tty_struct *tty, | |||
| 1820 | { | 1820 | { |
| 1821 | int queued; | 1821 | int queued; |
| 1822 | 1822 | ||
| 1823 | tty_buffer_request_room(tty, length); | ||
| 1824 | queued = tty_insert_flip_string(tty, data, length); | 1823 | queued = tty_insert_flip_string(tty, data, length); |
| 1825 | if (queued < length) | 1824 | if (queued < length) |
| 1826 | dev_err(dev, "%s - dropping data, %d bytes lost\n", | 1825 | dev_err(dev, "%s - dropping data, %d bytes lost\n", |