drivers/soc/renesas/rmobile-sysc.c:330:33: sparse: sparse: incorrect type in argument 1 (different address spaces)

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f838f8d2b694cf9d524dc4423e9dd2db13892f3f
commit: cf25d802e029c31efac8bdc979236927f37183bd soc: renesas: rmobile-sysc: Fix some leaks in rmobile_init_pm_domains()
date:   9 weeks ago
config: openrisc-randconfig-s032-20201221 (attached as .config)
compiler: or1k-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: v0.6.3-184-g1b896707-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cf25d802e029c31efac8bdc979236927f37183bd
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout cf25d802e029c31efac8bdc979236927f37183bd
        # 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=openrisc 

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/soc/renesas/rmobile-sysc.c:330:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *addr @@     got void [noderef] __iomem *[assigned] base @@
   drivers/soc/renesas/rmobile-sysc.c:330:33: sparse:     expected void *addr
   drivers/soc/renesas/rmobile-sysc.c:330:33: sparse:     got void [noderef] __iomem *[assigned] base

vim +330 drivers/soc/renesas/rmobile-sysc.c

   313	
   314	static int __init rmobile_init_pm_domains(void)
   315	{
   316		struct device_node *np, *pmd;
   317		bool scanned = false;
   318		void __iomem *base;
   319		int ret = 0;
   320	
   321		for_each_compatible_node(np, NULL, "renesas,sysc-rmobile") {
   322			base = of_iomap(np, 0);
   323			if (!base) {
   324				pr_warn("%pOF cannot map reg 0\n", np);
   325				continue;
   326			}
   327	
   328			pmd = of_get_child_by_name(np, "pm-domains");
   329			if (!pmd) {
 > 330				iounmap(base);
   331				pr_warn("%pOF lacks pm-domains node\n", np);
   332				continue;
   333			}
   334	
   335			if (!scanned) {
   336				/* Find PM domains containing special blocks */
   337				get_special_pds();
   338				scanned = true;
   339			}
   340	
   341			ret = rmobile_add_pm_domains(base, pmd, NULL);
   342			of_node_put(pmd);
   343			if (ret) {
   344				of_node_put(np);
   345				break;
   346			}
   347		}
   348	
   349		put_special_pds();
   350	
   351		return ret;
   352	}
   353	

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

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