Messages in this thread | | | Date | Thu, 8 Oct 2015 18:45:37 +0800 | From | kbuild test robot <> | Subject | Re: [PATCH v8 3/6] pci:host: Add Altera PCIe host controller driver |
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Hi Ley,
[auto build test WARNING on v4.3-rc4 -- if it's inappropriate base, please ignore]
config: x86_64-allmodconfig (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64
All warnings (new ones prefixed by >>):
drivers/pci/host/pcie-altera.c: In function 'tlp_cfg_dword_read': >> drivers/pci/host/pcie-altera.c:243:12: warning: large integer implicitly truncated to unsigned type [-Woverflow] *value = ~0UL; /* return 0xFFFFFFFF if error */ ^ drivers/pci/host/pcie-altera.c: In function 'altera_pcie_cfg_read': drivers/pci/host/pcie-altera.c:291:12: warning: large integer implicitly truncated to unsigned type [-Woverflow] *value = ~0UL; ^
vim +243 drivers/pci/host/pcie-altera.c
227 int ret; 228 u32 headers[TLP_HDR_SIZE]; 229 230 if (bus == pcie->root_bus_nr) 231 headers[0] = TLP_CFG_DW0(TLP_FMTTYPE_CFGRD0); 232 else 233 headers[0] = TLP_CFG_DW0(TLP_FMTTYPE_CFGRD1); 234 235 headers[1] = TLP_CFG_DW1(TLP_REQ_ID(pcie->root_bus_nr, devfn), 236 TLP_READ_TAG); 237 headers[2] = TLP_CFG_DW2(bus, devfn, where); 238 239 tlp_write_packet(pcie, headers, 0, false); 240 241 ret = tlp_read_packet(pcie, value); 242 if (ret != PCIBIOS_SUCCESSFUL) > 243 *value = ~0UL; /* return 0xFFFFFFFF if error */ 244 245 return ret; 246 } 247 248 static int tlp_cfg_dword_write(struct altera_pcie *pcie, u8 bus, u32 devfn, 249 int where, u32 value) 250 { 251 u32 headers[TLP_HDR_SIZE];
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