Hi "Jonathan,

I love your patch! Perhaps something to improve:

[auto build test WARNING on pinctrl/devel]
[also build test WARNING on robh/for-next linus/master v5.13-rc4 next-20210602]
[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/Jonathan-Neusch-fer/Nuvoton-WPCM450-pinctrl-and-GPIO-driver/20210602-200629
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
config: alpha-allyesconfig (attached as .config)
compiler: alpha-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/42f026e0692ea0083822284f98d2b82dcb6141ef
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Jonathan-Neusch-fer/Nuvoton-WPCM450-pinctrl-and-GPIO-driver/20210602-200629
        git checkout 42f026e0692ea0083822284f98d2b82dcb6141ef
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha 

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

All warnings (new ones prefixed by >>):

   In file included from include/linux/printk.h:409,
                    from include/linux/kernel.h:17,
                    from include/asm-generic/bug.h:20,
                    from arch/alpha/include/asm/bug.h:23,
                    from include/linux/bug.h:5,
                    from include/linux/thread_info.h:12,
                    from include/asm-generic/current.h:5,
                    from ./arch/alpha/include/generated/asm/current.h:1,
                    from include/linux/sched.h:12,
                    from include/linux/ratelimit.h:6,
                    from include/linux/dev_printk.h:16,
                    from include/linux/device.h:15,
                    from drivers/pinctrl/nuvoton/pinctrl-wpcm450.c:6:
   drivers/pinctrl/nuvoton/pinctrl-wpcm450.c: In function 'wpcm450_get_groups_count':
>> drivers/pinctrl/nuvoton/pinctrl-wpcm450.c:882:21: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=]
     882 |  dev_dbg(npcm->dev, "group size: %d\n", ARRAY_SIZE(wpcm450_groups));
         |                     ^~~~~~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:129:15: note: in definition of macro '__dynamic_func_call'
     129 |   func(&id, ##__VA_ARGS__);  \
         |               ^~~~~~~~~~~
   include/linux/dynamic_debug.h:161:2: note: in expansion of macro '_dynamic_func_call'
     161 |  _dynamic_func_call(fmt,__dynamic_dev_dbg,   \
         |  ^~~~~~~~~~~~~~~~~~
   include/linux/dev_printk.h:123:2: note: in expansion of macro 'dynamic_dev_dbg'
     123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
         |  ^~~~~~~~~~~~~~~
   include/linux/dev_printk.h:123:23: note: in expansion of macro 'dev_fmt'
     123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                       ^~~~~~~
   drivers/pinctrl/nuvoton/pinctrl-wpcm450.c:882:2: note: in expansion of macro 'dev_dbg'
     882 |  dev_dbg(npcm->dev, "group size: %d\n", ARRAY_SIZE(wpcm450_groups));
         |  ^~~~~~~
   drivers/pinctrl/nuvoton/pinctrl-wpcm450.c:882:35: note: format string is defined here
     882 |  dev_dbg(npcm->dev, "group size: %d\n", ARRAY_SIZE(wpcm450_groups));
         |                                  ~^
         |                                   |
         |                                   int
         |                                  %ld


vim +882 drivers/pinctrl/nuvoton/pinctrl-wpcm450.c

   876	
   877	/* pinctrl_ops */
   878	static int wpcm450_get_groups_count(struct pinctrl_dev *pctldev)
   879	{
   880		struct wpcm450_pinctrl *npcm = pinctrl_dev_get_drvdata(pctldev);
   881	
 > 882		dev_dbg(npcm->dev, "group size: %d\n", ARRAY_SIZE(wpcm450_groups));
   883		return ARRAY_SIZE(wpcm450_groups);
   884	}
   885	

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