Re: [PATCH] USB: ftdi_sio: Remove tty->low_latency.

[Michael Trimarchi <trimarchi@gandalf.sssup.it>]

Alan Cox wrote:
>> As it stands today ftdi_sio does indeed call tty_flip_buffer_push from
>> interrupt context with low_latency set and that is obviously incorrect,
>> right?
>>     
>
> It seems to do it from a work queue - or did I miss a case ?
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>   
  usb_fill_bulk_urb(port->read_urb, dev,
                        usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
                        port->read_urb->transfer_buffer,
                                port->read_urb->transfer_buffer_length,
                        ftdi_read_bulk_callback, port);

  (can be call in the interrupt context)
  ftdi_read_bulk_callback--->
                            ftdi_process_read-->      
                                                tty_flip_buffer_push(tty);
                                               
                                               

Michael