Messages in this thread | | | Date | Wed, 28 Jul 2021 08:58:57 +0800 | From | kernel test robot <> | Subject | [intel-tdx:guest 39/106] drivers/pci/msi.c:685:9: warning: incompatible integer to pointer conversion returning 'int' from a function with result type 'void *' |
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tree: https://github.com/intel/tdx.git guest head: 2fd34c2d8c2ec22dd7b1d191ec53a2491adf2259 commit: 1cc1ca45ae8d0f3bb82c851a6ef440cd6b4b8812 [39/106] pci: Mark MSI data shared config: mips-randconfig-r011-20210727 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project c658b472f3e61e1818e1909bf02f3d65470018a5) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://github.com/intel/tdx/commit/1cc1ca45ae8d0f3bb82c851a6ef440cd6b4b8812 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx guest git checkout 1cc1ca45ae8d0f3bb82c851a6ef440cd6b4b8812 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/pci/msi.c:685:9: error: implicit declaration of function 'ioremap_shared' [-Werror,-Wimplicit-function-declaration] return ioremap_shared(phys_addr, nr_entries * PCI_MSIX_ENTRY_SIZE); ^ >> drivers/pci/msi.c:685:9: warning: incompatible integer to pointer conversion returning 'int' from a function with result type 'void *' [-Wint-conversion] return ioremap_shared(phys_addr, nr_entries * PCI_MSIX_ENTRY_SIZE); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning and 1 error generated.
vim +685 drivers/pci/msi.c
667 668 static void __iomem *msix_map_region(struct pci_dev *dev, unsigned nr_entries) 669 { 670 resource_size_t phys_addr; 671 u32 table_offset; 672 unsigned long flags; 673 u8 bir; 674 675 pci_read_config_dword(dev, dev->msix_cap + PCI_MSIX_TABLE, 676 &table_offset); 677 bir = (u8)(table_offset & PCI_MSIX_TABLE_BIR); 678 flags = pci_resource_flags(dev, bir); 679 if (!flags || (flags & IORESOURCE_UNSET)) 680 return NULL; 681 682 table_offset &= PCI_MSIX_TABLE_OFFSET; 683 phys_addr = pci_resource_start(dev, bir) + table_offset; 684 > 685 return ioremap_shared(phys_addr, nr_entries * PCI_MSIX_ENTRY_SIZE); 686 } 687
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