arch/mips/ralink/bootrom.c:17:22: sparse: sparse: incorrect type in argument 2 (different address spaces)

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   07a56bb875afbe39dabbf6ba7b83783d166863db
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces
date:   4 weeks ago
config: mips-randconfig-s031-20200717 (attached as .config)
compiler: mipsel-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: v0.6.2-49-g707c5017-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=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>


sparse warnings: (new ones prefixed by >>)

>> arch/mips/ralink/bootrom.c:17:22: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *data @@     got void [noderef] __iomem *static [toplevel] membase @@
   arch/mips/ralink/bootrom.c:17:22: sparse:     expected void const *data
>> arch/mips/ralink/bootrom.c:17:22: sparse:     got void [noderef] __iomem *static [toplevel] membase

vim +17 arch/mips/ralink/bootrom.c

7a1a44c909fcb4 John Crispin 2013-05-21  14  
7a1a44c909fcb4 John Crispin 2013-05-21  15  static int bootrom_show(struct seq_file *s, void *unused)
7a1a44c909fcb4 John Crispin 2013-05-21  16  {
7a1a44c909fcb4 John Crispin 2013-05-21 @17  	seq_write(s, membase, BOOTROM_SIZE);
7a1a44c909fcb4 John Crispin 2013-05-21  18  
7a1a44c909fcb4 John Crispin 2013-05-21  19  	return 0;
7a1a44c909fcb4 John Crispin 2013-05-21  20  }
7a1a44c909fcb4 John Crispin 2013-05-21  21  

:::::: The code at line 17 was first introduced by commit
:::::: 7a1a44c909fcb4707b01448a28490d7be366b530 MIPS: ralink: add a bootrom dumper module

:::::: TO: John Crispin <blogic@xxxxxxxxxxx>
:::::: CC: Ralf Baechle <ralf@xxxxxxxxxxxxxx>

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

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