[linux-next:master 19621/19841] arch/loongarch/pci/pci.c:47:10: warning: shift count >= width of type

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   20a33c6b6cbe7e4805dfb6cd68816937443aa148
commit: 8bb068a4a74510c3609ebb9ca2448c0c3d4fd8b6 [19621/19841] LoongArch: Use pa_to_nid()/nid_to_addrbase() rather than hard-code
config: loongarch-randconfig-r2311-20261023 (https://download.01.org/0day-ci/archive/20261024/202610240921.rxXxjiK4-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project a808f8ea7fdc61ead417bfe55e8ef5f728776aeb)
sparse: v0.6.5-rc1-1-gc4640450
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261024/202610240921.rxXxjiK4-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610240921.rxXxjiK4-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/loongarch/pci/pci.c:47:10: warning: shift count >= width of type [-Wshift-count-overflow]
      47 |         return (nid_to_addrbase(node) | MCFG_EXT_PCICFG_BASE);
         |                 ^~~~~~~~~~~~~~~~~~~~~
   arch/loongarch/include/asm/numa.h:17:45: note: expanded from macro 'nid_to_addrbase'
      17 | #define nid_to_addrbase(nid)    (_ULCAST_(nid) << NODE_ADDRSPACE_SHIFT)
         |                                                ^  ~~~~~~~~~~~~~~~~~~~~
   1 warning generated.


vim +47 arch/loongarch/pci/pci.c

    44	
    45	phys_addr_t mcfg_addr_init(int node)
    46	{
  > 47		return (nid_to_addrbase(node) | MCFG_EXT_PCICFG_BASE);
    48	}
    49	

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki