Hi Yu, kernel test robot noticed the following build warnings: [auto build test WARNING on 42f7652d3eb527d03665b09edac47f85fb600924] url: https://github.com/intel-lab-lkp/linux/commits/Yu-Zhao/mm-hugetlb_vmemmap-batch-update-PTEs/20241021-122330 base: 42f7652d3eb527d03665b09edac47f85fb600924 patch link: https://lore.kernel.org/r/20241021042218.746659-4-yuzhao%40google.com patch subject: [PATCH v1 3/6] irqchip/gic-v3: support SGI broadcast config: arm-defconfig (https://download.01.org/0day-ci/archive/20241022/202410221026.yJKHaGWA-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241022/202410221026.yJKHaGWA-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410221026.yJKHaGWA-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/irqchip/irq-gic-v3.c:1401:8: warning: shift count >= width of type [-Wshift-count-overflow] val = BIT(ICC_SGI1R_IRQ_ROUTING_MODE_BIT) | (irq << ICC_SGI1R_SGI_ID_SHIFT); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/vdso/bits.h:7:26: note: expanded from macro 'BIT' #define BIT(nr) (UL(1) << (nr)) ^ ~~~~ 1 warning generated. vim +1401 drivers/irqchip/irq-gic-v3.c 1396 1397 static void gic_broadcast_sgi(unsigned int irq) 1398 { 1399 u64 val; 1400 > 1401 val = BIT(ICC_SGI1R_IRQ_ROUTING_MODE_BIT) | (irq << ICC_SGI1R_SGI_ID_SHIFT); 1402 1403 pr_devel("CPU %d: broadcasting SGI %u\n", smp_processor_id(), irq); 1404 gic_write_sgi1r(val); 1405 } 1406 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
