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| author | Gabriel Somlo <gsomlo@gmail.com> | 2022-11-23 08:04:52 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-19 14:59:40 +0100 |
| commit | 2ee91d42bf5ac2f2f2862d06f7344ffe89d4a032 (patch) | |
| tree | 741980631ce6bd4559e2c5e9b27c94619a737d6b /drivers | |
| parent | b9f5a18a9d7c4c41325c72971abec19278c7c6e6 (diff) | |
| download | linux-stable-2ee91d42bf5ac2f2f2862d06f7344ffe89d4a032.tar.gz linux-stable-2ee91d42bf5ac2f2f2862d06f7344ffe89d4a032.tar.bz2 linux-stable-2ee91d42bf5ac2f2f2862d06f7344ffe89d4a032.zip | |
serial: liteuart: move tty_flip_buffer_push() out of rx loop
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/liteuart.c | 4 |
1 files 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)); } |