Hi Andy, I love your patch! Yet something to improve: [auto build test ERROR on driver-core/driver-core-testing] [also build test ERROR on linuxtv-media/master linux/master linus/master v5.12-rc4 next-20210326] [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] url: https://github.com/0day-ci/linux/commits/Andy-Shevchenko/software-node-Free-resources-explicitly-when-swnode_register-fails/20210328-062322 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git ecdc996baf291b903342cc704f4086a88c361967 config: microblaze-randconfig-r016-20210328 (attached as .config) compiler: microblaze-linux-gcc (GCC) 9.3.0 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 # https://github.com/0day-ci/linux/commit/1d48129700f39fc70d26e5faee27e6fd7d8d5234 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Andy-Shevchenko/software-node-Free-resources-explicitly-when-swnode_register-fails/20210328-062322 git checkout 1d48129700f39fc70d26e5faee27e6fd7d8d5234 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=microblaze If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): In file included from include/linux/kobject.h:20, from include/linux/energy_model.h:7, from include/linux/device.h:16, from drivers/base/swnode.c:9: drivers/base/swnode.c: In function 'swnode_register_properties': >> include/linux/sysfs.h:55:8: error: 'struct kobj_attribute' has no member named 'key' 55 | (attr)->key = &__key; \ | ^~ drivers/base/swnode.c:835:3: note: in expansion of macro 'sysfs_attr_init' 835 | sysfs_attr_init(&attrs[n]); | ^~~~~~~~~~~~~~~ vim +55 include/linux/sysfs.h ^1da177e4c3f41 Linus Torvalds 2005-04-16 39 35960258ed388c Eric W. Biederman 2010-02-12 40 /** 35960258ed388c Eric W. Biederman 2010-02-12 41 * sysfs_attr_init - initialize a dynamically allocated sysfs attribute 35960258ed388c Eric W. Biederman 2010-02-12 42 * @attr: struct attribute to initialize 35960258ed388c Eric W. Biederman 2010-02-12 43 * 35960258ed388c Eric W. Biederman 2010-02-12 44 * Initialize a dynamically allocated struct attribute so we can 35960258ed388c Eric W. Biederman 2010-02-12 45 * make lockdep happy. This is a new requirement for attributes 35960258ed388c Eric W. Biederman 2010-02-12 46 * and initially this is only needed when lockdep is enabled. 35960258ed388c Eric W. Biederman 2010-02-12 47 * Lockdep gives a nice error when your attribute is added to 35960258ed388c Eric W. Biederman 2010-02-12 48 * sysfs if you don't have this. 35960258ed388c Eric W. Biederman 2010-02-12 49 */ 6992f5334995af Eric W. Biederman 2010-02-11 50 #ifdef CONFIG_DEBUG_LOCK_ALLOC 6992f5334995af Eric W. Biederman 2010-02-11 51 #define sysfs_attr_init(attr) \ 6992f5334995af Eric W. Biederman 2010-02-11 52 do { \ 6992f5334995af Eric W. Biederman 2010-02-11 53 static struct lock_class_key __key; \ 6992f5334995af Eric W. Biederman 2010-02-11 54 \ 6992f5334995af Eric W. Biederman 2010-02-11 @55 (attr)->key = &__key; \ 6992f5334995af Eric W. Biederman 2010-02-11 56 } while (0) 6992f5334995af Eric W. Biederman 2010-02-11 57 #else 6992f5334995af Eric W. Biederman 2010-02-11 58 #define sysfs_attr_init(attr) do {} while (0) 6992f5334995af Eric W. Biederman 2010-02-11 59 #endif 6992f5334995af Eric W. Biederman 2010-02-11 60 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org