[kbuild-all] drivers/video/fbdev/sis/init.c:882:9: sparse: sparse: cast removes address space '__iomem' of expression

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5 commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces date: 8 weeks ago config: riscv-randconfig-s032-20200817 (attached as .config) compiler: riscv64-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: v0.6.2-180-g49f7e13a-dirty git checkout 670d0a4b10704667765f7d18f7592993d02783aa # 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=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/video/fbdev/sis/init.c:882:9: sparse: got void * drivers/video/fbdev/sis/init.c:883:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/sis/init.c:883:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/video/fbdev/sis/init.c:883:9: sparse: expected void volatile [noderef] __iomem *addr drivers/video/fbdev/sis/init.c:883:9: sparse: got void * drivers/video/fbdev/sis/init.c:889:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/sis/init.c:889:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/video/fbdev/sis/init.c:889:9: sparse: expected void volatile [noderef] __iomem *addr drivers/video/fbdev/sis/init.c:889:9: sparse: got void * drivers/video/fbdev/sis/init.c:895:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/sis/init.c:895:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/video/fbdev/sis/init.c:895:9: sparse: expected void volatile [noderef] __iomem *addr drivers/video/fbdev/sis/init.c:895:9: sparse: got void * drivers/video/fbdev/sis/init.c:901:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/sis/init.c:901:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/video/fbdev/sis/init.c:901:9: sparse: expected void volatile [noderef] __iomem *addr drivers/video/fbdev/sis/init.c:901:9: sparse: got void * drivers/video/fbdev/sis/init.c:907:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/sis/init.c:907:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/video/fbdev/sis/init.c:907:9: sparse: expected void volatile [noderef] __iomem *addr drivers/video/fbdev/sis/init.c:907:9: sparse: got void * drivers/video/fbdev/sis/init.c:908:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/sis/init.c:908:16: sparse: got void * drivers/video/fbdev/sis/init.c:914:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/sis/init.c:914:16: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/video/fbdev/sis/init.c:914:16: sparse: expected void const volatile [noderef] __iomem *addr drivers/video/fbdev/sis/init.c:914:16: sparse: got void * drivers/video/fbdev/sis/init.c:920:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/sis/init.c:920:16: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/video/fbdev/sis/init.c:920:16: sparse: expected void const volatile [noderef] __iomem *addr drivers/video/fbdev/sis/init.c:920:16: sparse: got void * drivers/video/fbdev/sis/init.c:926:16: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/sis/init.c:926:16: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/video/fbdev/sis/init.c:926:16: sparse: expected void const volatile [noderef] __iomem *addr drivers/video/fbdev/sis/init.c:926:16: sparse: got void * -- drivers/gpu/drm/qxl/qxl_cmd.c:153:17: sparse: got void * drivers/gpu/drm/qxl/qxl_cmd.c:307:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/gpu/drm/qxl/qxl_cmd.c:307:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/gpu/drm/qxl/qxl_cmd.c:307:9: sparse: expected void volatile [noderef] __iomem *addr drivers/gpu/drm/qxl/qxl_cmd.c:307:9: sparse: got void * drivers/gpu/drm/qxl/qxl_cmd.c:363:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/gpu/drm/qxl/qxl_cmd.c:363:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/gpu/drm/qxl/qxl_cmd.c:363:9: sparse: expected void volatile [noderef] __iomem *addr drivers/gpu/drm/qxl/qxl_cmd.c:363:9: sparse: got void * drivers/gpu/drm/qxl/qxl_cmd.c:368:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/gpu/drm/qxl/qxl_cmd.c:368:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/gpu/drm/qxl/qxl_cmd.c:368:9: sparse: expected void volatile [noderef] __iomem *addr drivers/gpu/drm/qxl/qxl_cmd.c:368:9: sparse: got void * drivers/gpu/drm/qxl/qxl_cmd.c:418:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/gpu/drm/qxl/qxl_cmd.c:418:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/gpu/drm/qxl/qxl_cmd.c:418:9: sparse: expected void volatile [noderef] __iomem *addr drivers/gpu/drm/qxl/qxl_cmd.c:418:9: sparse: got void * -- drivers/gpu/drm/qxl/qxl_irq.c:70:9: sparse: got void * # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 670d0a4b10704667765f7d18f7592993d02783aa vim +/__iomem +882 drivers/video/fbdev/sis/init.c ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 878 ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 879 void f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 880 SiS_SetReg(SISIOADDRESS port, u8 index, u8 data) ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 881 { f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 @882 outb(index, port); f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 883 outb(data, port + 1); ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 884 } ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 885 ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 886 void f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 887 SiS_SetRegByte(SISIOADDRESS port, u8 data) ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 888 { f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 889 outb(data, port); ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 890 } ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 891 ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 892 void f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 893 SiS_SetRegShort(SISIOADDRESS port, u16 data) ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 894 { f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 895 outw(data, port); ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 896 } ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 897 ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 898 void f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 899 SiS_SetRegLong(SISIOADDRESS port, u32 data) ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 900 { f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 901 outl(data, port); ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 902 } ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 903 f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 904 u8 f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 905 SiS_GetReg(SISIOADDRESS port, u8 index) ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 906 { f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen 2010-12-20 907 outb(index, port); 2ad28472695a94 drivers/video/sis/init.c Aaro Koskinen 2010-11-19 @908 return inb(port + 1); ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 909 } ^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 910 :::::: The code at line 882 was first introduced by commit :::::: f48b9644ef330a13c6bb16ca85c2efdbe7e25558 sisfb: change register I/O functions to use fixed size types :::::: TO: Aaro Koskinen <aaro.koskinen(a)iki.fi&gt; :::::: CC: Paul Mundt <lethal(a)linux-sh.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org