Hi Lianjie, kernel test robot noticed the following build errors: [auto build test ERROR on cf87f46fd34d6c19283d9625a7822f20d90b64a4] url: https://github.com/intel-lab-lkp/linux/commits/Lianjie-Shi/PCI-Support-VF-resizable-BAR/20240516-173624 base: cf87f46fd34d6c19283d9625a7822f20d90b64a4 patch link: https://lore.kernel.org/r/20240516093334.2266599-2-Lianjie.Shi%40amd.com patch subject: [PATCH 1/1] PCI: Support VF resizable BAR config: i386-randconfig-014-20240518 (https://download.01.org/0day-ci/archive/20240518/202405180954.pffoQtM9-lkp@xxxxxxxxx/config) compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240518/202405180954.pffoQtM9-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/202405180954.pffoQtM9-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: drivers/pci/pci.o: in function `pci_restore_vf_rebar_state': >> drivers/pci/pci.c:1895:(.text+0x3bff): undefined reference to `__udivdi3' vim +1895 drivers/pci/pci.c 1869 1870 static void pci_restore_vf_rebar_state(struct pci_dev *pdev) 1871 { 1872 #ifdef CONFIG_PCI_IOV 1873 unsigned int pos, nbars, i; 1874 u32 ctrl; 1875 u16 total; 1876 1877 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_VF_REBAR); 1878 if (!pos) 1879 return; 1880 1881 pci_read_config_dword(pdev, pos + PCI_REBAR_CTRL, &ctrl); 1882 nbars = FIELD_GET(PCI_REBAR_CTRL_NBAR_MASK, ctrl); 1883 1884 for (i = 0; i < nbars; i++, pos += 8) { 1885 struct resource *res; 1886 int bar_idx, size; 1887 1888 pci_read_config_dword(pdev, pos + PCI_REBAR_CTRL, &ctrl); 1889 bar_idx = ctrl & PCI_REBAR_CTRL_BAR_IDX; 1890 total = pdev->sriov->total_VFs; 1891 if (!total) 1892 return; 1893 1894 res = pdev->resource + bar_idx + PCI_IOV_RESOURCES; > 1895 size = pci_rebar_bytes_to_size(resource_size(res) / total); 1896 ctrl &= ~PCI_REBAR_CTRL_BAR_SIZE; 1897 ctrl |= FIELD_PREP(PCI_REBAR_CTRL_BAR_SIZE, size); 1898 pci_write_config_dword(pdev, pos + PCI_REBAR_CTRL, ctrl); 1899 } 1900 #endif 1901 } 1902 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
