1 files changed, 42 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.15/818-v6.5-06-leds-trigger-netdev-add-basic-check-for-hw-control-s.patch b/target/linux/generic/backport-5.15/818-v6.5-06-leds-trigger-netdev-add-basic-check-for-hw-control-s.patch
new file mode 100644
index 0000000000..09759bc623
--- /dev/null
+++ b/target/linux/generic/backport-5.15/818-v6.5-06-leds-trigger-netdev-add-basic-check-for-hw-control-s.patch
@@ -0,0 +1,42 @@
+From 6352f25f9fadba59d5df2ba7139495759ccc81d5 Mon Sep 17 00:00:00 2001
+From: Christian Marangi <ansuelsmth@gmail.com>
+Date: Mon, 29 May 2023 18:32:36 +0200
+Subject: [PATCH 06/13] leds: trigger: netdev: add basic check for hw control
+ support
+
+Add basic check for hw control support. Check if the required API are
+defined and check if the defined trigger supported in hw control for the
+LED driver match netdev.
+
+Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
+Reviewed-by: Andrew Lunn <andrew@lunn.ch>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/leds/trigger/ledtrig-netdev.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+--- a/drivers/leds/trigger/ledtrig-netdev.c
++++ b/drivers/leds/trigger/ledtrig-netdev.c
+@@ -92,8 +92,22 @@ static void set_baseline_state(struct le
+ 	}
+ }
+ 
++static bool supports_hw_control(struct led_classdev *led_cdev)
++{
++	if (!led_cdev->hw_control_get || !led_cdev->hw_control_set ||
++	    !led_cdev->hw_control_is_supported)
++		return false;
++
++	return !strcmp(led_cdev->hw_control_trigger, led_cdev->trigger->name);
++}
++
+ static bool can_hw_control(struct led_netdev_data *trigger_data)
+ {
++	struct led_classdev *led_cdev = trigger_data->led_cdev;
++
++	if (!supports_hw_control(led_cdev))
++		return false;
++
+ 	return false;
+ }
+