Re: [PATCH] leds: ledtrig-activity: use ktime_get_boot_ns()

From: Pavel Machek
Date: Mon Jun 18 2018 - 11:07:25 EST


Hi!

> get_monotonic_boottime() is deprecated, so let's convert this to
> the simpler ktime_get_boot_ns().
>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Have you tested it?

> diff --git a/drivers/leds/trigger/ledtrig-activity.c b/drivers/leds/trigger/ledtrig-activity.c
> index 5081894082bd..589c1bc4d0b9 100644
> --- a/drivers/leds/trigger/ledtrig-activity.c
> +++ b/drivers/leds/trigger/ledtrig-activity.c
> @@ -37,7 +37,6 @@ static void led_activity_function(struct timer_list *t)
> struct activity_data *activity_data = from_timer(activity_data, t,
> timer);
> struct led_classdev *led_cdev = activity_data->led_cdev;
> - struct timespec boot_time;
> unsigned int target;
> unsigned int usage;
> int delay;
> @@ -57,7 +56,7 @@ static void led_activity_function(struct timer_list *t)
> return;
> }
>
> - get_monotonic_boottime(&boot_time);
> + curr_boot = ktime_get_boot_ns();
>
> cpus = 0;
> curr_used = 0;
> @@ -76,7 +75,6 @@ static void led_activity_function(struct timer_list *t)
> * down to 16us, ensuring we won't overflow 32-bit computations below
> * even up to 3k CPUs, while keeping divides cheap on smaller systems.
> */
> - curr_boot = timespec_to_ns(&boot_time) * cpus;

Original code is pretty weird (notice the * cpus), so I'm
double-checking.

Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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