From:   Christian Marangi <ansuelsmth@gmail.com>
To:     Andrew Lunn <andrew@lunn.ch>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Vladimir Oltean <olteanv@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        Gregory Clement <gregory.clement@bootlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        Pavel Machek <pavel@ucw.cz>, Lee Jones <lee@kernel.org>,
        Christian Marangi <ansuelsmth@gmail.com>,
        John Crispin <john@phrozen.org>, netdev@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-arm-msm@vger.kernel.org, linux-leds@vger.kernel.org
Subject: [net-next PATCH v5 04/15] leds: Provide stubs for when CLASS_LED is disabled
Date:   Sun, 19 Mar 2023 20:18:03 +0100
Message-Id: <20230319191814.22067-5-ansuelsmth@gmail.com>
In-Reply-To: <20230319191814.22067-1-ansuelsmth@gmail.com>
References: <20230319191814.22067-1-ansuelsmth@gmail.com>
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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
is 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>
---
 include/linux/leds.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/include/linux/leds.h b/include/linux/leds.h
index d71201a968b6..f6dec57453da 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_LEDS_CLASS)
 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