Hi Alyssa, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on next-20210813] [cannot apply to pci/next robh/for-next linus/master v5.14-rc5 v5.14-rc4 v5.14-rc3 v5.14-rc5] [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/Alyssa-Rosenzweig/Add-PCI-driver... base: 4b358aabb93a2c654cd1dcab1a25a589f6e2b153 config: powerpc-randconfig-r005-20210815 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7776b19eed44906e9973bfb240b6279d6feaab41) 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/0day-ci/linux/commit/1e2d479681d8a5282a0f68bac346d14f9... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Alyssa-Rosenzweig/Add-PCI-driver-for-the-Apple-M1/20210815-122655 git checkout 1e2d479681d8a5282a0f68bac346d14f97152e7b # 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 warnings (new ones prefixed by >>): .irq_set_affinity = irq_chip_set_affinity_parent, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pci/controller/pcie-apple.c:184:22: note: previous initialization is here .irq_set_affinity = irq_chip_set_affinity_parent, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +186 drivers/pci/controller/pcie-apple.c 179 180 static struct irq_chip apple_msi_bottom_chip = { 181 .name = "MSI", 182 .irq_mask = irq_chip_mask_parent, 183 .irq_unmask = irq_chip_unmask_parent, 184 .irq_set_affinity = irq_chip_set_affinity_parent, 185 .irq_eoi = irq_chip_eoi_parent, 187 .irq_set_type = irq_chip_set_type_parent, 188 .irq_compose_msi_msg = apple_msi_compose_msg, 189 }; 190 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org