[PATCH 20/32] riscv: Add Kendryte K210 FPIOA pinctrl driver

[kernel test robot]

Hi Damien,

I love your patch! Perhaps something to improve:

[auto build test WARNING on robh/for-next]
[also build test WARNING on spi/for-next pza/reset/next linus/master v5.10-rc3 next-20201109]
[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/Damien-Le-Moal/RISC-V-Kendryte-K210-support-improvments/20201109-095540
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: riscv-nommu_k210_defconfig (attached as .config)
compiler: riscv64-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/b53c7c4d3b5b4658b4951955fd69c0ceb4bfac4d
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Damien-Le-Moal/RISC-V-Kendryte-K210-support-improvments/20201109-095540
        git checkout b53c7c4d3b5b4658b4951955fd69c0ceb4bfac4d
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv 

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

All warnings (new ones prefixed by >>):

>> drivers/pinctrl/pinctrl-k210.c:848:5: warning: no previous prototype for 'k210_pinctrl_dt_node_to_map' [-Wmissing-prototypes]
     848 | int k210_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +/k210_pinctrl_dt_node_to_map +848 drivers/pinctrl/pinctrl-k210.c

   847	
 > 848	int k210_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
   849				struct device_node *np_config,
   850				struct pinctrl_map **map, unsigned int *num_maps)
   851	{
   852		unsigned int reserved_maps;
   853		struct device_node *np;
   854		int ret;
   855	
   856		reserved_maps = 0;
   857		*map = NULL;
   858		*num_maps = 0;
   859	
   860		ret = k210_pinctrl_dt_subnode_to_map(pctldev, np_config, map,
   861						     &reserved_maps, num_maps);
   862		if (ret < 0)
   863			goto err;
   864	
   865		for_each_available_child_of_node(np_config, np) {
   866			ret = k210_pinctrl_dt_subnode_to_map(pctldev, np, map,
   867							     &reserved_maps, num_maps);
   868			if (ret < 0)
   869				goto err;
   870		}
   871		return 0;
   872	
   873	err:
   874		pinctrl_utils_free_map(pctldev, *map, *num_maps);
   875		return ret;
   876	}
   877	

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