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(parent: 539cf10) | patch
usb: gadget: u_serial: process RX in workqueue instead of tasklet
authorMichał Mirosław <mirq-linux@rere.qmqm.pl>
Sun, 16 Dec 2018 20:23:47 +0000 (21:23 +0100)
committerFelipe Balbi <felipe.balbi@linux.intel.com>
Mon, 28 Jan 2019 10:51:30 +0000 (12:51 +0200)
commit8b4c62aef6f611dcfcf0ce27731f0e439be17b05
tree748b6963332cc5f96fbd008dcae4237ae19665f8tree | snapshot
parent539cf1039165ac59d217d916bc8f88bde8be73bdcommit | diff
usb: gadget: u_serial: process RX in workqueue instead of tasklet

Switch RX processing from tasklet to (delayed) work queue. This allows
receiver more room to process incoming data and prevents flood of
"ttyGS0: RX not scheduled?" messages on HS receive on slow CPU.

A side effect is 2.4MB/s zmodem transfer speed (up from 1.8MB/s)
on my test board.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
drivers/usb/gadget/function/u_serial.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git