include/asm-generic/io.h:291:22: sparse: sparse: incorrect type in argument 1 (different base types)

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   136057256686de39cc3a07c2e39ef6bc43003ff6
commit: 6e1e90ec027509a7e8d4efbd77a65b32b5a8b3ec regmap: mmio: add config option to allow relaxed MMIO accesses
date:   1 year, 1 month ago
config: h8300-randconfig-s031-20211117 (attached as .config)
compiler: h8300-linux-gcc (GCC) 11.2.0
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: v0.6.4-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6e1e90ec027509a7e8d4efbd77a65b32b5a8b3ec
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 6e1e90ec027509a7e8d4efbd77a65b32b5a8b3ec
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=h8300 

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/base/regmap/regmap-mmio.c: note: in included file (through include/linux/io.h):
   arch/h8300/include/asm/io.h:32:11: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:32:11: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:38:11: sparse: sparse: cast removes address space '__iomem' of expression
   drivers/base/regmap/regmap-mmio.c: note: in included file (through arch/h8300/include/asm/io.h, include/linux/io.h):
>> include/asm-generic/io.h:291:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned short [usertype] b @@     got restricted __le16 [usertype] @@
   include/asm-generic/io.h:291:22: sparse:     expected unsigned short [usertype] b
   include/asm-generic/io.h:291:22: sparse:     got restricted __le16 [usertype]
   drivers/base/regmap/regmap-mmio.c: note: in included file (through include/linux/io.h):
   arch/h8300/include/asm/io.h:38:11: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:38:11: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:44:11: sparse: sparse: cast removes address space '__iomem' of expression
   drivers/base/regmap/regmap-mmio.c: note: in included file (through arch/h8300/include/asm/io.h, include/linux/io.h):
   include/asm-generic/io.h:299:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] b @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:299:22: sparse:     expected unsigned int [usertype] b
   include/asm-generic/io.h:299:22: sparse:     got restricted __le32 [usertype]
   drivers/base/regmap/regmap-mmio.c: note: in included file (through include/linux/io.h):
   arch/h8300/include/asm/io.h:44:11: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:44:11: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:14:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:14:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:20:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:20:18: sparse: sparse: cast removes address space '__iomem' of expression
   drivers/base/regmap/regmap-mmio.c: note: in included file (through arch/h8300/include/asm/io.h, include/linux/io.h):
   include/asm-generic/io.h:259:16: sparse: sparse: cast to restricted __le16
   include/asm-generic/io.h:259:16: sparse: sparse: cast to restricted __le16
   include/asm-generic/io.h:259:16: sparse: sparse: cast to restricted __le16
   include/asm-generic/io.h:259:16: sparse: sparse: cast to restricted __le16
   drivers/base/regmap/regmap-mmio.c: note: in included file (through include/linux/io.h):
   arch/h8300/include/asm/io.h:20:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:20:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:20:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:20:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:20:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:20:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:26:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:26:18: sparse: sparse: cast removes address space '__iomem' of expression
   drivers/base/regmap/regmap-mmio.c: note: in included file (through arch/h8300/include/asm/io.h, include/linux/io.h):
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:267:16: sparse: sparse: cast to restricted __le32
   drivers/base/regmap/regmap-mmio.c: note: in included file (through include/linux/io.h):
   arch/h8300/include/asm/io.h:26:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:26:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:26:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:26:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:26:18: sparse: sparse: cast removes address space '__iomem' of expression
   arch/h8300/include/asm/io.h:26:18: sparse: sparse: cast removes address space '__iomem' of expression

vim +291 include/asm-generic/io.h

9439eb3ab9d1ec Will Deacon 2013-09-03  286  
9439eb3ab9d1ec Will Deacon 2013-09-03  287  #ifndef writew_relaxed
a71e7c44ffb7ba Sinan Kaya  2018-04-06  288  #define writew_relaxed writew_relaxed
a71e7c44ffb7ba Sinan Kaya  2018-04-06  289  static inline void writew_relaxed(u16 value, volatile void __iomem *addr)
a71e7c44ffb7ba Sinan Kaya  2018-04-06  290  {
a71e7c44ffb7ba Sinan Kaya  2018-04-06 @291  	__raw_writew(cpu_to_le16(value), addr);
a71e7c44ffb7ba Sinan Kaya  2018-04-06  292  }
9439eb3ab9d1ec Will Deacon 2013-09-03  293  #endif
9439eb3ab9d1ec Will Deacon 2013-09-03  294  

:::::: The code at line 291 was first introduced by commit
:::::: a71e7c44ffb7baea0c0795824afc34cc0bc1a301 io: change writeX_relaxed() to remove barriers

:::::: TO: Sinan Kaya <okaya@xxxxxxxxxxxxxx>
:::::: CC: Arnd Bergmann <arnd@xxxxxxxx>

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

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