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
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