]> git.baikalelectronics.ru Git - kernel.git/commit
USB: serial: clean up read processing in generic driver
authorJohan Hovold <jhovold@gmail.com>
Wed, 17 Mar 2010 22:05:56 +0000 (23:05 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 20 May 2010 20:21:34 +0000 (13:21 -0700)
commit5478ab5e2cb92174f3fc2a75519b34faa0983557
treef0bbd19801f576a26279ee485ff969234a9051b0
parent5beb745ff5c9de21ebb840aea3473ad13c3e8c42
USB: serial: clean up read processing in generic driver

Always process and flush read urb, but only resubmit when not throttled.
The new tty-layer supply plenty of slack so there is really no need to
cache and delay processing of a single urb while throttled.

Note that unthrottle now submits using GFP_KERNEL as we are not in
atomic context (so there is no need to save irq state either).

Note also that the process_read_urb function could be added to
usb_serial_driver should any driver need to do any device specific
processing.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/serial/generic.c