From 2ee91d42bf5ac2f2f2862d06f7344ffe89d4a032 Mon Sep 17 00:00:00 2001 From: Gabriel Somlo Date: Wed, 23 Nov 2022 08:04:52 -0500 Subject: serial: liteuart: move tty_flip_buffer_push() out of rx loop MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Ilpo Järvinen Reviewed-by: Geert Uytterhoeven Reviewed-by: Jiri Slaby Link: https://lore.kernel.org/r/20221123130500.1030189-7-gsomlo@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/liteuart.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/liteuart.c b/drivers/tty/serial/liteuart.c index 1e3429bcc2ad..81a86c5eb393 100644 --- a/drivers/tty/serial/liteuart.c +++ b/drivers/tty/serial/liteuart.c @@ -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)); } -- cgit v1.2.3