Messages in this thread | | | Date | Fri, 15 Mar 2019 23:49:56 +0800 | From | kbuild test robot <> | Subject | drivers/pci/controller/dwc/pcie-designware.c:309:52: sparse: cast truncates bits from constant value (ffffffff7fffffff becomes 7fffffff) |
| |
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f261c4e529dac5608a604d3dd3ae1cd2adf23c89 commit: 0e11faa48b07a063289d65363015a3d51ca4c337 PCI: dwc: Make use of BIT() in constant definitions date: 2 weeks ago reproduce: # apt-get install sparse git checkout 0e11faa48b07a063289d65363015a3d51ca4c337 make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
sparse warnings: (new ones prefixed by >>)
>> drivers/pci/controller/dwc/pcie-designware.c:309:52: sparse: cast truncates bits from constant value (ffffffff7fffffff becomes 7fffffff)
vim +309 drivers/pci/controller/dwc/pcie-designware.c
291 292 void dw_pcie_disable_atu(struct dw_pcie *pci, int index, 293 enum dw_pcie_region_type type) 294 { 295 int region; 296 297 switch (type) { 298 case DW_PCIE_REGION_INBOUND: 299 region = PCIE_ATU_REGION_INBOUND; 300 break; 301 case DW_PCIE_REGION_OUTBOUND: 302 region = PCIE_ATU_REGION_OUTBOUND; 303 break; 304 default: 305 return; 306 } 307 308 dw_pcie_writel_dbi(pci, PCIE_ATU_VIEWPORT, region | index); > 309 dw_pcie_writel_dbi(pci, PCIE_ATU_CR2, (u32)~PCIE_ATU_ENABLE); 310 } 311
--- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
| |