diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2021-03-02 07:21:40 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-10 09:34:06 +0100 |
| commit | f751ae1cbbf955d56162be85221c1f97c53a0683 (patch) | |
| tree | 8f0a794f24b46f1e4bcd322b6f250c6d560c9888 /drivers | |
| parent | tty: n_tty, set tty_ldisc_ops::owner (diff) | |
| download | linux-f751ae1cbbf955d56162be85221c1f97c53a0683.tar.xz linux-f751ae1cbbf955d56162be85221c1f97c53a0683.zip | |
tty: imx, use ms_to_ktime
This really eliminates multiplications from the assembly. I would have
thought they are optimized by inlining ktime_set, but not on x86_64 with
gcc 10.
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210302062214.29627-10-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/imx.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 8257597d034d..3f69356937ef 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -394,11 +394,7 @@ static void imx_uart_rts_inactive(struct imx_port *sport, u32 *ucr2) static void start_hrtimer_ms(struct hrtimer *hrt, unsigned long msec) { - long sec = msec / MSEC_PER_SEC; - long nsec = (msec % MSEC_PER_SEC) * 1000000; - ktime_t t = ktime_set(sec, nsec); - - hrtimer_start(hrt, t, HRTIMER_MODE_REL); + hrtimer_start(hrt, ms_to_ktime(msec), HRTIMER_MODE_REL); } /* called with port.lock taken and irqs off */ |