On Tue, Jul 11, 2017 at 3:07 PM, kbuild test robot <lkp@xxxxxxxxx> wrote: > make ARCH=i386 Yeah, either this code shouldn't have been built on 32-bit arch at all, or be portable. > arch/x86/pci/fixup.c: In function 'pci_amd_enable_64bit_bar': >>> arch/x86/pci/fixup.c:674:15: warning: large integer implicitly truncated to unsigned type [-Woverflow] > res->start = 0x100000000ull; > ^~~~~~~~~~~~~~ > arch/x86/pci/fixup.c:675:13: warning: large integer implicitly truncated to unsigned type [-Woverflow] > res->end = 0xfd00000000ull - 1; > ^~~~~~~~~~~~~~~ >>> arch/x86/pci/fixup.c:686:22: warning: right shift count >= width of type [-Wshift-count-overflow] I suppose explicit casting will help. > high = ((res->start >> 40) & AMD_141b_MMIO_HIGH_MMIOBASE_MASK) | > ^~ > arch/x86/pci/fixup.c:687:21: warning: right shift count >= width of type [-Wshift-count-overflow] > ((((res->end + 1) >> 40) << AMD_141b_MMIO_HIGH_MMIOLIMIT_SHIFT) > ^~ These can be done via upper_32_bits() + shift. -- With Best Regards, Andy Shevchenko
