[net-next PATCH v7 04/16] leds: Provide stubs for when CLASS_LED & NEW_LEDS are disabled

Christian Marangi
2023-04-17T15:20:32Z

From: Andrew Lunn <andrew@lunn.ch>

Provide stubs for devm_led_classdev_register_ext() and
led_init_default_state_get() so that LED drivers embedded within other
drivers such as PHYs and Ethernet switches still build when LEDS_CLASS
or NEW_LEDS are disabled. This also helps with Kconfig dependencies,
which are somewhat hairy for phylib and mdio and only get worse when
adding a dependency on LED_CLASS.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
include/linux/leds.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)

diff --git a/include/linux/leds.h b/include/linux/leds.h
index d71201a968b6..aa48e643f655 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -82,7 +82,15 @@ struct led_init_data {
bool devname_mandatory;
};

+#if IS_ENABLED(CONFIG_NEW_LEDS)
enum led_default_state led_init_default_state_get(struct fwnode_handle *fwnode);
+#else
+static inline enum led_default_state
+led_init_default_state_get(struct fwnode_handle *fwnode)
+{
+ return LEDS_DEFSTATE_OFF;
+}
+#endif

struct led_hw_trigger_type {
int dummy;
@@ -217,9 +225,19 @@ static inline int led_classdev_register(struct device *parent,
return led_classdev_register_ext(parent, led_cdev, NULL);
}

+#if IS_ENABLED(CONFIG_LEDS_CLASS)
int devm_led_classdev_register_ext(struct device *parent,
struct led_classdev *led_cdev,
struct led_init_data *init_data);
+#else
+static inline int
+devm_led_classdev_register_ext(struct device *parent,
+ struct led_classdev *led_cdev,
+ struct led_init_data *init_data)
+{
+ return 0;
+}
+#endif

static inline int devm_led_classdev_register(struct device *parent,
struct led_classdev *led_cdev)
--
2.39.2