6.6-stable review patch. If anyone has any objections, please let me know.
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From: Daniel Golle daniel@makrotopia.org
commit 26f732791f2bcab18f59c61915bbe35225f30136 upstream.
This reverts commit c629c972b310af41e9e072febb6dae9a299edde6.
While .led_blink_set() would previously put an LED into an unconditional permanently blinking state, the offending commit now uses same operation to (also?) set the blink timing of the netdev trigger when offloading.
This breaks many if not all of the existing PHY drivers which offer offloading LED operations, as those drivers would just put the LED into blinking state after .led_blink_set() has been called.
Unfortunately the change even made it into stable kernels for unknown reasons, so it should be reverted there as well.
Fixes: c629c972b310a ("leds: trigger: netdev: Configure LED blink interval for HW offload") Link: https://lore.kernel.org/linux-leds/c6134e26-2e45-4121-aa15-58aaef327201@lunn... Suggested-by: Andrew Lunn andrew@lunn.ch Cc: stable@vger.kernel.org Signed-off-by: Daniel Golle daniel@makrotopia.org Reviewed-by: Andrew Lunn andrew@lunn.ch Link: https://lore.kernel.org/r/6dcc77ee1c9676891d6250d8994850f521426a0f.175233465... Signed-off-by: Lee Jones lee@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/leds/trigger/ledtrig-netdev.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-)
--- a/drivers/leds/trigger/ledtrig-netdev.c +++ b/drivers/leds/trigger/ledtrig-netdev.c @@ -54,7 +54,6 @@ struct led_netdev_data { unsigned int last_activity;
unsigned long mode; - unsigned long blink_delay; int link_speed; u8 duplex;
@@ -70,10 +69,6 @@ static void set_baseline_state(struct le /* Already validated, hw control is possible with the requested mode */ if (trigger_data->hw_control) { led_cdev->hw_control_set(led_cdev, trigger_data->mode); - if (led_cdev->blink_set) { - led_cdev->blink_set(led_cdev, &trigger_data->blink_delay, - &trigger_data->blink_delay); - }
return; } @@ -391,11 +386,10 @@ static ssize_t interval_store(struct dev size_t size) { struct led_netdev_data *trigger_data = led_trigger_get_drvdata(dev); - struct led_classdev *led_cdev = trigger_data->led_cdev; unsigned long value; int ret;
- if (trigger_data->hw_control && !led_cdev->blink_set) + if (trigger_data->hw_control) return -EINVAL;
ret = kstrtoul(buf, 0, &value); @@ -404,13 +398,9 @@ static ssize_t interval_store(struct dev
/* impose some basic bounds on the timer interval */ if (value >= 5 && value <= 10000) { - if (trigger_data->hw_control) { - trigger_data->blink_delay = value; - } else { - cancel_delayed_work_sync(&trigger_data->work); + cancel_delayed_work_sync(&trigger_data->work);
- atomic_set(&trigger_data->interval, msecs_to_jiffies(value)); - } + atomic_set(&trigger_data->interval, msecs_to_jiffies(value)); set_baseline_state(trigger_data); /* resets timer */ }