Hi Mihai,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on char-misc/char-misc-testing]
[also build test ERROR on linus/master v5.10-rc1 next-20201029]
[cannot apply to linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Mihai-Carabas/misc-pvpanic-preparing-for-pvpanic-driver-framework/20201029-204304
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 3650b228f83adda7e5ee532e2b90429c03f7b9ec
config: openrisc-randconfig-r001-20201029 (attached as .config)
compiler: or1k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/d8f90ef175d20a5e55607c7dafea596286bb7a64
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Mihai-Carabas/misc-pvpanic-preparing-for-pvpanic-driver-framework/20201029-204304
        git checkout d8f90ef175d20a5e55607c7dafea596286bb7a64
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=openrisc 

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

All error/warnings (new ones prefixed by >>):

   drivers/misc/pvpanic/pvpanic.c:54:5: warning: no previous prototype for 'pvpanic_add_device' [-Wmissing-prototypes]
      54 | int pvpanic_add_device(struct device *dev, struct resource *res)
         |     ^~~~~~~~~~~~~~~~~~
   drivers/misc/pvpanic/pvpanic.c:81:6: warning: no previous prototype for 'pvpanic_remove_device' [-Wmissing-prototypes]
      81 | void pvpanic_remove_device(void)
         |      ^~~~~~~~~~~~~~~~~~~~~
   drivers/misc/pvpanic/pvpanic.c: In function 'pvpanic_platform_probe':
>> drivers/misc/pvpanic/pvpanic.c:104:10: error: implicit declaration of function 'ioport_map'; did you mean 'ioremap'? [-Werror=implicit-function-declaration]
     104 |   base = ioport_map(res->start, resource_size(res));
         |          ^~~~~~~~~~
         |          ioremap
>> drivers/misc/pvpanic/pvpanic.c:104:8: warning: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
     104 |   base = ioport_map(res->start, resource_size(res));
         |        ^
   cc1: some warnings being treated as errors

vim +104 drivers/misc/pvpanic/pvpanic.c

    87	
    88	static int pvpanic_platform_probe(struct platform_device *pdev)
    89	{
    90		struct device *dev = &pdev->dev;
    91		struct resource *res;
    92		void __iomem *base;
    93	
    94		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
    95		if (res) {
    96			base = devm_ioremap_resource(dev, res);
    97			if (IS_ERR(base))
    98				return -ENODEV;
    99		} else {
   100			res = platform_get_resource(pdev, IORESOURCE_IO, 0);
   101			if (!res)
   102				return -ENODEV;
   103	
 > 104			base = ioport_map(res->start, resource_size(res));
   105			if (!base)
   106				return -ENODEV;
   107			pvpanic_data.is_ioport = true;
   108		}
   109	
   110		pvpanic_data.base = base;
   111		atomic_notifier_chain_register(&panic_notifier_list,
   112					       &pvpanic_panic_nb);
   113	
   114		return 0;
   115	}
   116	

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