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

From: kernel test robot
Date: Sun Aug 16 2020 - 18:02:01 EST

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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@xxxxxxxxx>

sparse warnings: (new ones prefixed by >>)

>> drivers/video/fbdev/sis/init.c:882:9: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/video/fbdev/sis/init.c:882:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@
>> drivers/video/fbdev/sis/init.c:882:9: sparse: expected void volatile [noderef] __iomem *addr
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: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@
>> drivers/video/fbdev/sis/init.c:908:16: sparse: expected void const volatile [noderef] __iomem *addr
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: sparse: cast removes address space '__iomem' of expression
>> drivers/gpu/drm/qxl/qxl_cmd.c:153:17: 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:153:17: sparse: expected void volatile [noderef] __iomem *addr
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: sparse: cast removes address space '__iomem' of expression
>> drivers/gpu/drm/qxl/qxl_irq.c:70:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@
>> drivers/gpu/drm/qxl/qxl_irq.c:70:9: sparse: expected void volatile [noderef] __iomem *addr
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/?id=670d0a4b10704667765f7d18f7592993d02783aa
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@xxxxxx>
:::::: CC: Paul Mundt <lethal@xxxxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip

Next message: Joe Perches: "[PATCH 0/2] ceph: Neaten debugging"
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