From 7eef64da0b0ad8e90409fc4aa80eb69c1b4bdd2c Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Sat, 9 Dec 2023 23:54:51 +0100 Subject: [PATCH] leds: trigger: panic: Simplify led_trigger_set_panic I don't see why we iterate over all triggers to find the panic trigger. We *are* the panic trigger. Therefore we also know that the panic trigger doesn't have an activate() hook. So we can simplify the code significantly. Signed-off-by: Heiner Kallweit Reviewed-by: Jacek Anaszewski Link: https://lore.kernel.org/r/84c0fa67-2f03-4474-aa75-914d65d88dd0@gmail.com Signed-off-by: Lee Jones --- drivers/leds/trigger/ledtrig-panic.c | 23 +++++++---------------- 1 file changed, 7 insertions(+), 16 deletions(-) diff --git a/drivers/leds/trigger/ledtrig-panic.c b/drivers/leds/trigger/ledtrig-panic.c index 5a6b21bfeb9af..1d49c10780910 100644 --- a/drivers/leds/trigger/ledtrig-panic.c +++ b/drivers/leds/trigger/ledtrig-panic.c @@ -21,24 +21,15 @@ static struct led_trigger *trigger; */ static void led_trigger_set_panic(struct led_classdev *led_cdev) { - struct led_trigger *trig; + if (led_cdev->trigger) + list_del(&led_cdev->trig_list); + list_add_tail(&led_cdev->trig_list, &trigger->led_cdevs); - list_for_each_entry(trig, &trigger_list, next_trig) { - if (strcmp("panic", trig->name)) - continue; - if (led_cdev->trigger) - list_del(&led_cdev->trig_list); - list_add_tail(&led_cdev->trig_list, &trig->led_cdevs); + /* Avoid the delayed blink path */ + led_cdev->blink_delay_on = 0; + led_cdev->blink_delay_off = 0; - /* Avoid the delayed blink path */ - led_cdev->blink_delay_on = 0; - led_cdev->blink_delay_off = 0; - - led_cdev->trigger = trig; - if (trig->activate) - trig->activate(led_cdev); - break; - } + led_cdev->trigger = trigger; } static int led_trigger_panic_notifier(struct notifier_block *nb, -- 2.30.2