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serial: liteuart: move tty_flip_buffer_push() out of rx loop

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Calling tty_flip_buffer_push() for each individual received character
is overkill. Move it out of the rx loop, and only call it once per
set of characters received together.

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20221123130500.1030189-7-gsomlo@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gabriel Somlo 2022-11-23 08:04:52 -05:00 committed by Greg Kroah-Hartman
parent b9f5a18a9d
commit 2ee91d42bf
1 changed files with 2 additions and 2 deletions
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4
drivers/tty/serial/liteuart.c
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@ -87,10 +87,10 @@ static void liteuart_timer(struct timer_list *t)
/* no overflow bits in status */
if (!(uart_handle_sysrq_char(port, ch)))
uart_insert_char(port, status, 0, ch, flg);
tty_flip_buffer_push(&port->state->port);
}
tty_flip_buffer_push(&port->state->port);
mod_timer(&uart->timer, jiffies + uart_poll_timeout(port));
}