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author | Alan Cox <alan@linux.intel.com> | 2010-02-18 16:44:01 +0000 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-02 14:55:12 -0800 |
commit | a108bfcb372d8c4452701039308fb95747911c59 (patch) | |
tree | 3528621937692e28081f71131cddc3130e2641ad /drivers/usb/serial/mos7840.c | |
parent | 2832fc11f1360668482beec06dbcd631ae5f0cf1 (diff) | |
download | kernel_samsung_smdk4412-a108bfcb372d8c4452701039308fb95747911c59.zip kernel_samsung_smdk4412-a108bfcb372d8c4452701039308fb95747911c59.tar.gz kernel_samsung_smdk4412-a108bfcb372d8c4452701039308fb95747911c59.tar.bz2 |
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/mos7840.c')
-rw-r--r-- | drivers/usb/serial/mos7840.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index c89a89c..2fda1c0 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -764,7 +764,6 @@ static void mos7840_bulk_in_callback(struct urb *urb) if (urb->actual_length) { tty = tty_port_tty_get(&mos7840_port->port->port); if (tty) { - tty_buffer_request_room(tty, urb->actual_length); tty_insert_flip_string(tty, data, urb->actual_length); dbg(" %s ", data); tty_flip_buffer_push(tty); |