tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 98546348153dee5f8ced572fd6c4690461d20f51 commit: 797e78564634275ed4fe6b3f586c4b96eb1d86bc [1430/3917] platform/surface: aggregator_registry: Add base device hub config: arm64-randconfig-r026-20210311 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 574a9dabc63ba1e7a04c08d4bde2eacd61b44ce1) 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 arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=797e78564634275ed4fe6b3f586c4b96eb1d86bc git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 797e78564634275ed4fe6b3f586c4b96eb1d86bc # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from drivers/platform/surface/surface_aggregator_registry.c:12: In file included from include/linux/acpi.h:35: In file included from include/acpi/acpi_io.h:7: In file included from arch/arm64/include/asm/acpi.h:12: include/linux/efi.h:1093:34: warning: passing 1-byte aligned argument to 4-byte aligned parameter 2 of 'get_var' may result in an unaligned pointer access [-Walign-mismatch] status = get_var(L"SecureBoot", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size, ^ include/linux/efi.h:1101:24: warning: passing 1-byte aligned argument to 4-byte aligned parameter 2 of 'get_var' may result in an unaligned pointer access [-Walign-mismatch] get_var(L"SetupMode", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size, &setupmode); ^ >> drivers/platform/surface/surface_aggregator_registry.c:398:25: warning: implicit conversion from 'int' to '__u8' (aka 'unsigned char') changes value from 65535 to 255 [-Wconstant-conversion] { SSAM_VDEV(HUB, 0x02, SSAM_ANY_IID, 0x00) }, ~ ^~~~~~~~~~~~ include/linux/surface_aggregator/device.h:71:23: note: expanded from macro 'SSAM_ANY_IID' #define SSAM_ANY_IID 0xffff ^~~~~~ include/linux/surface_aggregator/device.h:126:63: note: expanded from macro 'SSAM_VDEV' SSAM_DEVICE(SSAM_DOMAIN_VIRTUAL, SSAM_VIRTUAL_TC_##cat, tid, iid, fun) ^~~ include/linux/surface_aggregator/device.h:102:41: note: expanded from macro 'SSAM_DEVICE' .instance = ((iid) != SSAM_ANY_IID) ? (iid) : 0, \ ^~~ 3 warnings generated. vim +398 drivers/platform/surface/surface_aggregator_registry.c 396 397 static const struct ssam_device_id ssam_base_hub_match[] = { > 398 { SSAM_VDEV(HUB, 0x02, SSAM_ANY_IID, 0x00) }, 399 { }, 400 }; 401 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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