linux-kernel - drivers/net/wireless/mediatek/mt76/mac80211.c:119: undefined reference to `devm_of_led_classdev

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Message-ID: <201803110224.XT5RVTIg%fengguang.wu@intel.com>
Date:   Sun, 11 Mar 2018 02:34:29 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Felix Fietkau <nbd@....name>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Kalle Valo <kvalo@...eaurora.org>,
        Lorenzo Bianconi <lorenzo.bianconi83@...il.com>
Subject: drivers/net/wireless/mediatek/mt76/mac80211.c:119: undefined
 reference to `devm_of_led_classdev_register'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   cdb06e9d8f520c969676e7d6778cffe5894f079f
commit: 7bc04215a66b60e198aecaee8418f6d79fa19faa mt76: add driver code for MT76x2e
date:   3 months ago
config: x86_64-randconfig-v0-03110120 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        git checkout 7bc04215a66b60e198aecaee8418f6d79fa19faa
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/net/wireless/mediatek/mt76/mac80211.o: In function `mt76_led_init':
>> drivers/net/wireless/mediatek/mt76/mac80211.c:119: undefined reference to `devm_of_led_classdev_register'

vim +119 drivers/net/wireless/mediatek/mt76/mac80211.c

17f1de56 Felix Fietkau 2017-11-21   92  
17f1de56 Felix Fietkau 2017-11-21   93  static int mt76_led_init(struct mt76_dev *dev)
17f1de56 Felix Fietkau 2017-11-21   94  {
17f1de56 Felix Fietkau 2017-11-21   95  	struct device_node *np = dev->dev->of_node;
17f1de56 Felix Fietkau 2017-11-21   96  	struct ieee80211_hw *hw = dev->hw;
17f1de56 Felix Fietkau 2017-11-21   97  	int led_pin;
17f1de56 Felix Fietkau 2017-11-21   98  
17f1de56 Felix Fietkau 2017-11-21   99  	if (!dev->led_cdev.brightness_set && !dev->led_cdev.blink_set)
17f1de56 Felix Fietkau 2017-11-21  100  		return 0;
17f1de56 Felix Fietkau 2017-11-21  101  
17f1de56 Felix Fietkau 2017-11-21  102  	snprintf(dev->led_name, sizeof(dev->led_name),
17f1de56 Felix Fietkau 2017-11-21  103  		 "mt76-%s", wiphy_name(hw->wiphy));
17f1de56 Felix Fietkau 2017-11-21  104  
17f1de56 Felix Fietkau 2017-11-21  105  	dev->led_cdev.name = dev->led_name;
17f1de56 Felix Fietkau 2017-11-21  106  	dev->led_cdev.default_trigger =
17f1de56 Felix Fietkau 2017-11-21  107  		ieee80211_create_tpt_led_trigger(hw,
17f1de56 Felix Fietkau 2017-11-21  108  					IEEE80211_TPT_LEDTRIG_FL_RADIO,
17f1de56 Felix Fietkau 2017-11-21  109  					mt76_tpt_blink,
17f1de56 Felix Fietkau 2017-11-21  110  					ARRAY_SIZE(mt76_tpt_blink));
17f1de56 Felix Fietkau 2017-11-21  111  
17f1de56 Felix Fietkau 2017-11-21  112  	np = of_get_child_by_name(np, "led");
17f1de56 Felix Fietkau 2017-11-21  113  	if (np) {
17f1de56 Felix Fietkau 2017-11-21  114  		if (!of_property_read_u32(np, "led-sources", &led_pin))
17f1de56 Felix Fietkau 2017-11-21  115  			dev->led_pin = led_pin;
17f1de56 Felix Fietkau 2017-11-21  116  		dev->led_al = of_property_read_bool(np, "led-active-low");
17f1de56 Felix Fietkau 2017-11-21  117  	}
17f1de56 Felix Fietkau 2017-11-21  118  
17f1de56 Felix Fietkau 2017-11-21 @119  	return devm_led_classdev_register(dev->dev, &dev->led_cdev);
17f1de56 Felix Fietkau 2017-11-21  120  }
17f1de56 Felix Fietkau 2017-11-21  121  

:::::: The code at line 119 was first introduced by commit
:::::: 17f1de56df051229988aab37e01971c9713c4a31 mt76: add common code shared between multiple chipsets

:::::: TO: Felix Fietkau <nbd@....name>
:::::: CC: Kalle Valo <kvalo@...eaurora.org>

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Download attachment ".config.gz" of type "application/gzip" (24100 bytes)