Subject: Re: [PATCH net-next] net: phy: change of_phy_leds() to fwnode_phy_leds()

From: kernel test robot <[email-masked]>
Date: Fri, 9 Jan 2026 04:22:27 +0100

Hi Jijie,

kernel test robot noticed the following build warnings:

[auto build test WARNING on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Jijie-Shao/net-phy-change-of_phy_leds-to-fwnode_phy_leds/20260108-153742
base:   net-next/main
patch link:    https://lore.kernel.org/r/20260108073405.3036482-1-shaojijie%40huawei.com
patch subject: [PATCH net-next] net: phy: change of_phy_leds() to fwnode_phy_leds()
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20260109/[email-masked]/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260109/[email-masked]/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email-masked]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email-masked]/

All warnings (new ones prefixed by >>):

>> drivers/net/phy/phy_device.c:3291:31: warning: unused variable 'led' [-Wunused-variable]
    3291 |         struct fwnode_handle *leds, *led;
         |                                      ^~~
   1 warning generated.

vim +/led +3291 drivers/net/phy/phy_device.c

  3287	
  3288	static int fwnode_phy_leds(struct phy_device *phydev)
  3289	{
  3290		struct fwnode_handle *fwnode = dev_fwnode(&phydev->mdio.dev);
> 3291		struct fwnode_handle *leds, *led;
  3292		int err;
  3293	
  3294		if (!fwnode)
  3295			return 0;
  3296	
  3297		leds = fwnode_get_named_child_node(fwnode, "leds");
  3298		if (!leds)
  3299			return 0;
  3300	
  3301		/* Check if the PHY driver have at least an OP to
  3302		 * set the LEDs.
  3303		 */
  3304		if (!(phydev->drv->led_brightness_set ||
  3305		      phydev->drv->led_blink_set ||
  3306		      phydev->drv->led_hw_control_set)) {
  3307			phydev_dbg(phydev, "ignoring leds node defined with no PHY driver support\n");
  3308			goto exit;
  3309		}
  3310	
  3311		fwnode_for_each_available_child_node_scoped(leds, led) {
  3312			err = fwnode_phy_led(phydev, led);
  3313			if (err) {
  3314				fwnode_handle_put(leds);
  3315				phy_leds_unregister(phydev);
  3316				return err;
  3317			}
  3318		}
  3319	
  3320	exit:
  3321		fwnode_handle_put(leds);
  3322		return 0;
  3323	}
  3324	

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