From: Rafael J. Wysocki Date: Tue, 22 Aug 2023 11:28:02 +0000 (+0200) Subject: cpuidle: teo: Avoid unnecessary variable assignments X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=78aabcb3211aa4b7e8f8a1d5d4bdad699a42d4ba;p=linux.git cpuidle: teo: Avoid unnecessary variable assignments Notice that it is not necessary to assign tick_intercept_sum in every iteration of the first loop over idle states in teo_select(), because the intercept_sum value does not change after the assignment in a given iteration of the loop, so its value after the last iteration of the loop can be used for computing the tick_intercept_sum value directly. Modify the code accordingly. No intentional functional impact. Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/cpuidle/governors/teo.c b/drivers/cpuidle/governors/teo.c index 31050fdc633f2..7244f71c59c5d 100644 --- a/drivers/cpuidle/governors/teo.c +++ b/drivers/cpuidle/governors/teo.c @@ -450,8 +450,6 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, hit_sum += prev_bin->hits; recent_sum += prev_bin->recent; - tick_intercept_sum = intercept_sum; - if (dev->states_usage[i].disable) continue; @@ -484,7 +482,8 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, goto end; } - tick_intercept_sum += cpu_data->state_bins[drv->state_count-1].intercepts; + tick_intercept_sum = intercept_sum + + cpu_data->state_bins[drv->state_count-1].intercepts; /* * If the sum of the intercepts metric for all of the idle states