Hi Lukas, I love your patch! Yet something to improve: [auto build test ERROR on char-misc/char-misc-testing] [also build test ERROR on pci/next soc/for-next v5.14-rc6 next-20210819] [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/Lukas-Bulwahn/mei-improve-Denverton-HSM-IFSI-support/20210819-230718 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git b2159182dd498fdb0f49e371ccc94efbc12d1f8e config: i386-randconfig-c001-20210818 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d2b574a4dea5b718e4386bf2e26af0126e5978ce) 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/2b98fe0ded99ab7eaf389fa1c91b3d9aad7c93a3 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Lukas-Bulwahn/mei-improve-Denverton-HSM-IFSI-support/20210819-230718 git checkout 2b98fe0ded99ab7eaf389fa1c91b3d9aad7c93a3 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=i386 SHELL=/bin/bash drivers/misc/mei/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): drivers/misc/mei/pci-me.c:80:39: error: use of undeclared identifier 'MEI_ME_PCH8_SPS_CFG' {MEI_PCI_DEVICE(MEI_DEV_ID_DNV_IE_2, MEI_ME_PCH8_SPS_CFG)}, ^ >> drivers/misc/mei/pci-me.c:121:1: error: definition of variable with array type needs an explicit size or an initializer MODULE_DEVICE_TABLE(pci, mei_me_pci_tbl); ^ include/linux/module.h:244:21: note: expanded from macro 'MODULE_DEVICE_TABLE' extern typeof(name) __mod_##type##__##name##_device_table \ ^ :74:1: note: expanded from here __mod_pci__mei_me_pci_tbl_device_table ^ drivers/misc/mei/pci-me.c:195:31: warning: shift count >= width of type [-Wshift-count-overflow] if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) || ^~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ ~~~ drivers/misc/mei/pci-me.c:196:40: warning: shift count >= width of type [-Wshift-count-overflow] dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) { ^~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ ~~~ 2 warnings and 2 errors generated. vim +121 drivers/misc/mei/pci-me.c 2703d4b2e673cc Tomas Winkler 2013-02-06 120 b68301e9acd30f Tomas Winkler 2013-03-27 @121 MODULE_DEVICE_TABLE(pci, mei_me_pci_tbl); 2703d4b2e673cc Tomas Winkler 2013-02-06 122 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org