Re: [PATCH] gpio: swnode: remove deprecated lookup mechanism
From: kernel test robot
Date: Mon Jun 29 2026 - 10:36:44 EST
Hi Bartosz,
kernel test robot noticed the following build warnings:
[auto build test WARNING on dc59e4fea9d83f03bad6bddf3fa2e52491777482]
url: https://github.com/intel-lab-lkp/linux/commits/Bartosz-Golaszewski/gpio-swnode-remove-deprecated-lookup-mechanism/20260629-185811
base: dc59e4fea9d83f03bad6bddf3fa2e52491777482
patch link: https://lore.kernel.org/r/20260629-gpio-swnode-drop-label-matching-v1-1-db1af36cf883%40oss.qualcomm.com
patch subject: [PATCH] gpio: swnode: remove deprecated lookup mechanism
config: m68k-allnoconfig (https://download.01.org/0day-ci/archive/20260629/202606292234.A3QghcWA-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260629/202606292234.A3QghcWA-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202606292234.A3QghcWA-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
drivers/gpio/gpiolib-swnode.c: In function 'swnode_get_gpio_device':
>> drivers/gpio/gpiolib-swnode.c:29:29: warning: unused variable 'gdev' [-Wunused-variable]
29 | struct gpio_device *gdev;
| ^~~~
vim +/gdev +29 drivers/gpio/gpiolib-swnode.c
e7f9ff5dc90c38 Dmitry Torokhov 2022-11-11 25
b7b56e64a345e7 Bartosz Golaszewski 2023-09-27 26 static struct gpio_device *swnode_get_gpio_device(struct fwnode_handle *fwnode)
e7f9ff5dc90c38 Dmitry Torokhov 2022-11-11 27 {
b7b56e64a345e7 Bartosz Golaszewski 2023-09-27 28 const struct software_node *gdev_node;
b7b56e64a345e7 Bartosz Golaszewski 2023-09-27 @29 struct gpio_device *gdev;
e7f9ff5dc90c38 Dmitry Torokhov 2022-11-11 30
b7b56e64a345e7 Bartosz Golaszewski 2023-09-27 31 gdev_node = to_software_node(fwnode);
6774a66d0e103d Bartosz Golaszewski 2025-12-15 32 if (!gdev_node)
216c1204757190 Bartosz Golaszewski 2025-11-20 33 goto fwnode_lookup;
e7f9ff5dc90c38 Dmitry Torokhov 2022-11-11 34
9d50f95bc0d5df Charles Keepax 2024-04-16 35 /*
9d50f95bc0d5df Charles Keepax 2024-04-16 36 * Check for a special node that identifies undefined GPIOs, this is
9d50f95bc0d5df Charles Keepax 2024-04-16 37 * primarily used as a key for internal chip selects in SPI bindings.
9d50f95bc0d5df Charles Keepax 2024-04-16 38 */
9d50f95bc0d5df Charles Keepax 2024-04-16 39 if (IS_ENABLED(CONFIG_GPIO_SWNODE_UNDEFINED) &&
6774a66d0e103d Bartosz Golaszewski 2025-12-15 40 gdev_node == &swnode_gpio_undefined)
9d50f95bc0d5df Charles Keepax 2024-04-16 41 return ERR_PTR(-ENOENT);
9d50f95bc0d5df Charles Keepax 2024-04-16 42
216c1204757190 Bartosz Golaszewski 2025-11-20 43 fwnode_lookup:
ff373b244a4cbb Bartosz Golaszewski 2026-06-29 44 return gpio_device_find_by_fwnode(fwnode) ?: ERR_PTR(-EPROBE_DEFER);
e7f9ff5dc90c38 Dmitry Torokhov 2022-11-11 45 }
e7f9ff5dc90c38 Dmitry Torokhov 2022-11-11 46
--
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