Hi Tony, I love your patch! Perhaps something to improve: [auto build test WARNING on omap/for-next] [also build test WARNING on robh/for-next keystone/next v5.7-rc6 next-20200519] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Tony-Lindgren/Add-initial-genpd-support-for-omap-PRM-driver/20200521-063328 base: https://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git for-next config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot All warnings (new ones prefixed by >>, old ones prefixed by <<): drivers/soc/ti/omap_prm.c: In function 'omap_prm_domain_detach_dev': >> drivers/soc/ti/omap_prm.c:347:26: warning: variable 'prmd' set but not used [-Wunused-but-set-variable] 347 | struct omap_prm_domain *prmd; | ^~~~ At top level: drivers/soc/ti/omap_prm.c:123:21: warning: 'omap_prm_onoff_noauto' defined but not used [-Wunused-const-variable=] 123 | omap_prm_domain_map omap_prm_onoff_noauto = { | ^~~~~~~~~~~~~~~~~~~~~ drivers/soc/ti/omap_prm.c:115:21: warning: 'omap_prm_nooff' defined but not used [-Wunused-const-variable=] 115 | omap_prm_domain_map omap_prm_nooff = { | ^~~~~~~~~~~~~~ drivers/soc/ti/omap_prm.c:107:21: warning: 'omap_prm_noinact' defined but not used [-Wunused-const-variable=] 107 | omap_prm_domain_map omap_prm_noinact = { | ^~~~~~~~~~~~~~~~ drivers/soc/ti/omap_prm.c:99:21: warning: 'omap_prm_all' defined but not used [-Wunused-const-variable=] 99 | omap_prm_domain_map omap_prm_all = { | ^~~~~~~~~~~~ vim +/prmd +347 drivers/soc/ti/omap_prm.c 342 343 static void omap_prm_domain_detach_dev(struct generic_pm_domain *domain, 344 struct device *dev) 345 { 346 struct generic_pm_domain_data *genpd_data; > 347 struct omap_prm_domain *prmd; 348 349 prmd = genpd_to_prm_domain(domain); 350 351 genpd_data = dev_gpd_data(dev); 352 genpd_data->data = NULL; 353 } 354 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org