Hi Philipp, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on driver-core/driver-core-testing driver-core/driver-core-next driver-core/driver-core-linus linus/master v6.7 next-20240105] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Philipp-Stanner/platform_device-add-devres-function-region-reqs/20240106-012526 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20240105172218.42457-3-pstanner%40redhat.com patch subject: [PATCH 1/2] platform_device: add devres function region-reqs config: x86_64-randconfig-101-20240106 (https://download.01.org/0day-ci/archive/20240108/202401081547.VBj4FKaw-lkp@xxxxxxxxx/config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240108/202401081547.VBj4FKaw-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/202401081547.VBj4FKaw-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/base/platform.c:101: warning: expecting prototype for devm_platform_get_and_resource(). Prototype was for devm_platform_get_resource() instead vim +101 drivers/base/platform.c 84 85 /** 86 * devm_platform_get_and_resource - get and request a resource 87 * 88 * @pdev: the platform device to get the resource from 89 * @type: resource type (either IORESOURCE_MEM or IORESOURCE_IO) 90 * @num: resource index 91 * @name: name to be associated with the request 92 * 93 * Return: a pointer to the resource on success, an ERR_PTR on failure. 94 * 95 * Gets a resource and requests it. Use this instead of 96 * devm_platform_ioremap_resource() only if you have to create several single 97 * mappings with devm_ioremap(). 98 */ 99 struct resource *devm_platform_get_resource(struct platform_device *pdev, 100 unsigned int type, unsigned int num, const char *name) > 101 { 102 struct resource *res; 103 104 res = platform_get_resource(pdev, type, num); 105 if (!res) 106 return ERR_PTR(-EINVAL); 107 108 if (type & IORESOURCE_MEM) 109 res = devm_request_mem_region(&pdev->dev, res->start, res->end, name); 110 else if (type & IORESOURCE_IO) 111 res = devm_request_region(&pdev->dev, res->start, res->end, name); 112 else 113 return ERR_PTR(-EINVAL); 114 115 if (!res) 116 return ERR_PTR(-EBUSY); 117 118 return res; 119 } 120 EXPORT_SYMBOL_GPL(devm_platform_get_resource); 121 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki