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| author | Heiner Kallweit <hkallweit1@gmail.com> | 2023-12-09 23:54:51 +0100 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2024-03-07 08:48:01 +0000 |
| commit | 7eef64da0b0ad8e90409fc4aa80eb69c1b4bdd2c (patch) | |
| tree | abfa457c0e9854f276b81850214849d44d88cd7e /drivers/leds | |
| parent | ec18a2a83b8b9f7e39c80105ea148c769c46227b (diff) | |
| download | linux-7eef64da0b0ad8e90409fc4aa80eb69c1b4bdd2c.tar.gz | |
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 <hkallweit1@gmail.com>
Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Link: https://lore.kernel.org/r/84c0fa67-2f03-4474-aa75-914d65d88dd0@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/trigger/ledtrig-panic.c | 23 |
1 files 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, |