tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2023a53bdf41b7646b1d384b6816af06309f73a5 commit: 005b73d0dd83c9cb9420a196bea8070cde30ecac m68knommu: __force type casts for raw IO access date: 8 months ago config: m68k-randconfig-s032-20210403 (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-279-g6d5d9b42-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=005b73d0dd83c9cb9420a196bea8070cde30ecac git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 005b73d0dd83c9cb9420a196bea8070cde30ecac # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) arch/m68k/coldfire/pci.c:80:26: sparse: sparse: cast to restricted __le16 arch/m68k/coldfire/pci.c:80:26: sparse: sparse: cast to restricted __le16 arch/m68k/coldfire/pci.c:80:26: sparse: sparse: cast to restricted __le16 arch/m68k/coldfire/pci.c:80:26: sparse: sparse: cast to restricted __le16 arch/m68k/coldfire/pci.c:83:26: sparse: sparse: cast to restricted __le32 arch/m68k/coldfire/pci.c:83:26: sparse: sparse: cast to restricted __le32 arch/m68k/coldfire/pci.c:83:26: sparse: sparse: cast to restricted __le32 arch/m68k/coldfire/pci.c:83:26: sparse: sparse: cast to restricted __le32 arch/m68k/coldfire/pci.c:83:26: sparse: sparse: cast to restricted __le32 arch/m68k/coldfire/pci.c:83:26: sparse: sparse: cast to restricted __le32 arch/m68k/coldfire/pci.c:112:17: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short volatile [usertype] @@ got restricted __le16 [usertype] @@ arch/m68k/coldfire/pci.c:112:17: sparse: expected unsigned short volatile [usertype] arch/m68k/coldfire/pci.c:112:17: sparse: got restricted __le16 [usertype] >> arch/m68k/coldfire/pci.c:115:17: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int volatile [usertype] @@ got restricted __le32 [usertype] @@ arch/m68k/coldfire/pci.c:115:17: sparse: expected unsigned int volatile [usertype] arch/m68k/coldfire/pci.c:115:17: sparse: got restricted __le32 [usertype] vim +115 arch/m68k/coldfire/pci.c bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 91 bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 92 static int mcf_pci_writeconfig(struct pci_bus *bus, unsigned int devfn, bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 93 int where, int size, u32 value) bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 94 { bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 95 unsigned long addr; bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 96 bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 97 if (bus->number == 0) { bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 98 if (mcf_host_slot2sid[PCI_SLOT(devfn)] == 0) bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 99 return PCIBIOS_SUCCESSFUL; bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 100 } bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 101 bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 102 addr = mcf_mk_pcicar(bus->number, devfn, where); bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 103 __raw_writel(PCICAR_E | addr, PCICAR); 082f55c4598450 arch/m68k/coldfire/pci.c Greg Ungerer 2018-04-11 104 __raw_readl(PCICAR); bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 105 addr = iospace + (where & 0x3); bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 106 bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 107 switch (size) { bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 108 case 1: bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 109 __raw_writeb(value, addr); bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 110 break; bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 111 case 2: bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 112 __raw_writew(cpu_to_le16(value), addr); bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 113 break; bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 114 default: bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 @115 __raw_writel(cpu_to_le32(value), addr); bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 116 break; bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 117 } bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 118 bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 119 __raw_writel(0, PCICAR); 082f55c4598450 arch/m68k/coldfire/pci.c Greg Ungerer 2018-04-11 120 __raw_readl(PCICAR); bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 121 return PCIBIOS_SUCCESSFUL; bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 122 } bbdea849ed6ba6 arch/m68k/platform/coldfire/pci.c Greg Ungerer 2012-05-29 123 :::::: The code at line 115 was first introduced by commit :::::: bbdea849ed6ba694cf1f56801b90f100685e3aa0 m68k: add PCI bus code support for the ColdFire M54xx SoC family :::::: TO: Greg Ungerer :::::: CC: Greg Ungerer --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org