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 v5.8-rc3 next-20200629] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Tony-Lindgren/Add-initial-genpd-... base: https://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git for-next config: arm-randconfig-r011-20200629 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project a28d38a6bca1726d56c9b373f4c7dc5264fc7716) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): static const struct __maybe_unused omap_prm_domain_map omap_prm_noinact = { ^ include/linux/compiler_attributes.h:259:56: note: expanded from macro '__maybe_unused' #define __maybe_unused __attribute__((__unused__)) ^ drivers/soc/ti/omap_prm.c:30:8: note: previous definition is here struct omap_prm_domain_map { ^ drivers/soc/ti/omap_prm.c:105:21: warning: attribute declaration must precede definition [-Wignored-attributes] static const struct __maybe_unused omap_prm_domain_map omap_prm_onoff_noauto = { ^ include/linux/compiler_attributes.h:259:56: note: expanded from macro '__maybe_unused' #define __maybe_unused __attribute__((__unused__)) ^ drivers/soc/ti/omap_prm.c:30:8: note: previous definition is here struct omap_prm_domain_map { ^ 2 warnings generated. vim +98 drivers/soc/ti/omap_prm.c 97 99 .usable_modes = BIT(OMAP_PRMD_ON_ACTIVE) | BIT(OMAP_PRMD_RETENTION) | 100 BIT(OMAP_PRMD_OFF), 101 .statechange = 1, 102 .logicretstate = 1, 103 }; 104 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org