tree: https://github.com/l1k/linux spi_fixes head: 6054604029840934356e70a291269c72fe863b48 commit: ef8e19f732296908c0ad49a6e3d84d65e61625dc [7/24] spi: Introduce device-managed SPI controller allocation config: powerpc-randconfig-r033-20201111 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 874b0a0b9db93f5d3350ffe6b5efda2d908415d0) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://github.com/l1k/linux/commit/ef8e19f732296908c0ad49a6e3d84d65e61625dc git remote add l1k https://github.com/l1k/linux git fetch --no-tags l1k spi_fixes git checkout ef8e19f732296908c0ad49a6e3d84d65e61625dc # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): if (!devres_find(&ctlr->dev.parent, devm_spi_release_controller, ^~~~~~~~~~~~~~~~~ include/linux/device.h:190:34: note: passing argument to parameter 'dev' here void *devres_find(struct device *dev, dr_release_t release, ^ 1 error generated. vim +2886 drivers/spi/spi.c 2845 2846 /** 2847 * spi_unregister_controller - unregister SPI master or slave controller 2848 * @ctlr: the controller being unregistered 2849 * Context: can sleep 2850 * 2851 * This call is used only by SPI controller drivers, which are the 2852 * only ones directly touching chip registers. 2853 * 2854 * This must be called from context that can sleep. 2855 * 2856 * Note that this function also drops a reference to the controller. 2857 */ 2858 void spi_unregister_controller(struct spi_controller *ctlr) 2859 { 2860 struct spi_controller *found; 2861 int id = ctlr->bus_num; 2862 2863 /* Prevent addition of new devices, unregister existing ones */ 2864 if (IS_ENABLED(CONFIG_SPI_DYNAMIC)) 2865 mutex_lock(&spi_add_lock); 2866 2867 device_for_each_child(&ctlr->dev, NULL, __unregister); 2868 2869 /* First make sure that this controller was ever added */ 2870 mutex_lock(&board_lock); 2871 found = idr_find(&spi_master_idr, id); 2872 mutex_unlock(&board_lock); 2873 if (ctlr->queued) { 2874 if (spi_destroy_queue(ctlr)) 2875 dev_err(&ctlr->dev, "queue remove failed\n"); 2876 } 2877 mutex_lock(&board_lock); 2878 list_del(&ctlr->list); 2879 mutex_unlock(&board_lock); 2880 2881 device_del(&ctlr->dev); 2882 2883 /* Release the last reference on the controller if its driver 2884 * has not yet been converted to devm_spi_alloc_master/slave(). 2885 */ 2887 devm_spi_match_controller, ctlr)) 2888 put_device(&ctlr->dev); 2889 2890 /* free bus id */ 2891 mutex_lock(&board_lock); 2892 if (found == ctlr) 2893 idr_remove(&spi_master_idr, id); 2894 mutex_unlock(&board_lock); 2895 2896 if (IS_ENABLED(CONFIG_SPI_DYNAMIC)) 2897 mutex_unlock(&spi_add_lock); 2898 } 2899 EXPORT_SYMBOL_GPL(spi_unregister_controller); 2900 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org