Re: [PATCH 1/3] led: core: Don't call get_time_us() twice

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On Thu, Dec 06, 2018 at 11:30:57PM -0800, Andrey Smirnov wrote:
> The code doesn't seem to be time-sensitive enough to warrant calling
> get_time_ns() twice instead of caching its value and using it no both
> places.
> 
> Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> ---
>  drivers/led/core.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)

Applied, thanks

Sascha

> 
> diff --git a/drivers/led/core.c b/drivers/led/core.c
> index a388e6b36..f11504ace 100644
> --- a/drivers/led/core.c
> +++ b/drivers/led/core.c
> @@ -127,12 +127,13 @@ static void led_blink_func(struct poller_struct *poller)
>  	struct led *led;
>  
>  	list_for_each_entry(led, &leds, list) {
> +		const uint64_t now = get_time_ns();
>  		int on;
>  
>  		if (!led->blink && !led->flash)
>  			continue;
>  
> -		if (led->blink_next_event > get_time_ns()) {
> +		if (led->blink_next_event > now) {
>  			continue;
>  		}
>  
> @@ -140,7 +141,7 @@ static void led_blink_func(struct poller_struct *poller)
>  		if (on)
>  			on = led->max_value;
>  
> -		led->blink_next_event = get_time_ns() +
> +		led->blink_next_event = now +
>  			(led->blink_states[led->blink_next_state] * MSECOND);
>  		led->blink_next_state = (led->blink_next_state + 1) %
>  					led->blink_nr_states;
> -- 
> 2.19.1
> 
> 
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