Messages in this thread | | | Date | Wed, 25 May 2022 00:54:57 +0800 | From | kernel test robot <> | Subject | [atishp04:unmatched_pmu 1/4] drivers/perf/riscv_pmu_sbi.c:709:34: warning: shift count >= width of type |
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tree: https://github.com/atishp04/linux unmatched_pmu head: 7b75dbb7c4c01dceb7a974c352945fd86eb88c25 commit: 04bc56e83a7e6e851694e34da95f26c57abc7132 [1/4] RISC-V: Create unique identification for SoC PMU config: riscv-rv32_defconfig (https://download.01.org/0day-ci/archive/20220525/202205250058.7LPnhB6e-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 10c9ecce9f6096e18222a331c5e7d085bd813f75) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/atishp04/linux/commit/04bc56e83a7e6e851694e34da95f26c57abc7132 git remote add atishp04 https://github.com/atishp04/linux git fetch --no-tags atishp04 unmatched_pmu git checkout 04bc56e83a7e6e851694e34da95f26c57abc7132 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/perf/
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/perf/riscv_pmu_sbi.c:709:34: warning: shift count >= width of type [-Wshift-count-overflow] pmuid.arch = (sbi_get_marchid() >> (63 - 15) & (1 << 15)) | (sbi_get_marchid() & 0x7FFF); ^ ~~~~~~~~~ 1 warning generated.
vim +709 drivers/perf/riscv_pmu_sbi.c
695 696 static uint64_t pmu_sbi_get_pmu_id(void) 697 { 698 union sbi_pmu_id { 699 uint64_t value; 700 struct { 701 uint16_t imp:16; 702 uint16_t arch:16; 703 uint32_t vendor:32; 704 }; 705 } pmuid; 706 707 pmuid.value = 0; 708 pmuid.vendor = (uint32_t) sbi_get_mvendorid(); > 709 pmuid.arch = (sbi_get_marchid() >> (63 - 15) & (1 << 15)) | (sbi_get_marchid() & 0x7FFF); 710 pmuid.imp = (sbi_get_mimpid() >> 16); 711 712 return pmuid.value; 713 } 714
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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