forked from Minki/linux
serial: xilinx_uartps: drop low-latency workaround
Commitc8dbdc842d
("serial: xuartps: Rewrite the interrupt handling logic") reworked the driver interrupt processing but also, without comment, added an unnecessary workaround for the infamous low_latency behaviour of tty_flip_buffer_push() which had been removed years before. Specifically, since commita9c3f68f3c
("tty: Fix low_latency BUG"), tty_flip_buffer_push() always schedules a work item to push data to the line discipline and there's no need to keep any low_latency hacks around. Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20210421095509.3024-27-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
4e11dbb518
commit
348fbd6170
@ -301,9 +301,8 @@ static void cdns_uart_handle_rx(void *dev_id, unsigned int isrstatus)
|
||||
tty_insert_flip_char(&port->state->port, data, status);
|
||||
isrstatus = 0;
|
||||
}
|
||||
spin_unlock(&port->lock);
|
||||
|
||||
tty_flip_buffer_push(&port->state->port);
|
||||
spin_lock(&port->lock);
|
||||
}
|
||||
|
||||
/**
|
||||
|
Loading…
Reference in New Issue
Block a user