From e298d8a38b2341865f9feb04591aabb109e8bb13 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 10 May 2023 18:22:31 +0200 Subject: leds: Change led_trigger_blink[_oneshot]() delay parameters to pass-by-value led_blink_set[_oneshot]()'s delay_on and delay_off function parameters are pass by reference, so that hw-blink implementations can report back the actual achieved delays when the values have been rounded to something the hw supports. This is really only interesting for the sysfs API / the timer trigger. Other triggers don't really care about this and none of the callers of led_trigger_blink[_oneshot]() do anything with the returned delay values. Change the led_trigger_blink[_oneshot]() delay parameters to pass-by-value, there are 2 reasons for this: 1. led_cdev->blink_set() may sleep, while led_trigger_blink() may not. So on hw where led_cdev->blink_set() sleeps the call needs to be deferred to a workqueue, in which case the actual achieved delays are unknown (this is a preparation patch for the deferring). 2. Since the callers don't care about the actual achieved delays, allowing callers to directly pass a value leads to simpler code for most callers. Signed-off-by: Hans de Goede Reviewed-by: Jacek Anaszewski Tested-by: Yauhen Kharuzhy Acked-by: Greg Kroah-Hartman Acked-by: Sebastian Reichel Acked-by: Florian Westphal Link: https://lore.kernel.org/r/20230510162234.291439-2-hdegoede@redhat.com Signed-off-by: Lee Jones --- drivers/leds/trigger/ledtrig-disk.c | 9 +++------ drivers/leds/trigger/ledtrig-mtd.c | 8 ++------ 2 files changed, 5 insertions(+), 12 deletions(-) (limited to 'drivers/leds/trigger') diff --git a/drivers/leds/trigger/ledtrig-disk.c b/drivers/leds/trigger/ledtrig-disk.c index 0b7dfbd04273..e9b87ee944f2 100644 --- a/drivers/leds/trigger/ledtrig-disk.c +++ b/drivers/leds/trigger/ledtrig-disk.c @@ -19,16 +19,13 @@ DEFINE_LED_TRIGGER(ledtrig_disk_write); void ledtrig_disk_activity(bool write) { - unsigned long blink_delay = BLINK_DELAY; - - led_trigger_blink_oneshot(ledtrig_disk, - &blink_delay, &blink_delay, 0); + led_trigger_blink_oneshot(ledtrig_disk, BLINK_DELAY, BLINK_DELAY, 0); if (write) led_trigger_blink_oneshot(ledtrig_disk_write, - &blink_delay, &blink_delay, 0); + BLINK_DELAY, BLINK_DELAY, 0); else led_trigger_blink_oneshot(ledtrig_disk_read, - &blink_delay, &blink_delay, 0); + BLINK_DELAY, BLINK_DELAY, 0); } EXPORT_SYMBOL(ledtrig_disk_activity); diff --git a/drivers/leds/trigger/ledtrig-mtd.c b/drivers/leds/trigger/ledtrig-mtd.c index 8fa763c2269b..bbe6876a249d 100644 --- a/drivers/leds/trigger/ledtrig-mtd.c +++ b/drivers/leds/trigger/ledtrig-mtd.c @@ -22,12 +22,8 @@ DEFINE_LED_TRIGGER(ledtrig_nand); void ledtrig_mtd_activity(void) { - unsigned long blink_delay = BLINK_DELAY; - - led_trigger_blink_oneshot(ledtrig_mtd, - &blink_delay, &blink_delay, 0); - led_trigger_blink_oneshot(ledtrig_nand, - &blink_delay, &blink_delay, 0); + led_trigger_blink_oneshot(ledtrig_mtd, BLINK_DELAY, BLINK_DELAY, 0); + led_trigger_blink_oneshot(ledtrig_nand, BLINK_DELAY, BLINK_DELAY, 0); } EXPORT_SYMBOL(ledtrig_mtd_activity); -- cgit v1.2.3