Hi Dmitry,

I love your patch! Yet something to improve:

[auto build test ERROR on pm/linux-next]
[also build test ERROR on tegra-drm/drm/tegra/for-next linus/master v5.14-rc7 next-20210826]
[cannot apply to tegra/for-next]
[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/Dmitry-Osipenko/NVIDIA-Tegra-power-management-patches-for-5-16/20210827-093936
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: hexagon-randconfig-r045-20210827 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 1076082a0d97bd5c16a25ee7cf3dbb6ee4b5a9fe)
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/11cffc90b58c476a1beca3ab35ff397d7363498d
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Dmitry-Osipenko/NVIDIA-Tegra-power-management-patches-for-5-16/20210827-093936
        git checkout 11cffc90b58c476a1beca3ab35ff397d7363498d
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/regulator/

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 >>):

   In file included from drivers/regulator/fixed.c:22:
>> include/linux/pm_opp.h:438:8: error: declaration of anonymous struct must be a definition
   static struct inline dev_pm_opp *dev_pm_opp_from_clk_rate(struct device *dev)
          ^
>> include/linux/pm_opp.h:438:1: warning: declaration does not declare anything [-Wmissing-declarations]
   static struct inline dev_pm_opp *dev_pm_opp_from_clk_rate(struct device *dev)
   ^~~~~~
   In file included from drivers/regulator/fixed.c:23:
   In file included from include/linux/regulator/driver.h:16:
>> include/linux/linear_range.h:29:56: warning: declaration of 'struct linear_range' will not be visible outside of this function [-Wvisibility]
   unsigned int linear_range_values_in_range(const struct linear_range *r);
                                                          ^
   include/linux/linear_range.h:30:62: warning: declaration of 'struct linear_range' will not be visible outside of this function [-Wvisibility]
   unsigned int linear_range_values_in_range_array(const struct linear_range *r,
                                                                ^
   include/linux/linear_range.h:32:54: warning: declaration of 'struct linear_range' will not be visible outside of this function [-Wvisibility]
   unsigned int linear_range_get_max_value(const struct linear_range *r);
                                                        ^
   include/linux/linear_range.h:34:41: warning: declaration of 'struct linear_range' will not be visible outside of this function [-Wvisibility]
   int linear_range_get_value(const struct linear_range *r, unsigned int selector,
                                           ^
   include/linux/linear_range.h:36:47: warning: declaration of 'struct linear_range' will not be visible outside of this function [-Wvisibility]
   int linear_range_get_value_array(const struct linear_range *r, int ranges,
                                                 ^
   include/linux/linear_range.h:38:48: warning: declaration of 'struct linear_range' will not be visible outside of this function [-Wvisibility]
   int linear_range_get_selector_low(const struct linear_range *r,
                                                  ^
   include/linux/linear_range.h:41:49: warning: declaration of 'struct linear_range' will not be visible outside of this function [-Wvisibility]
   int linear_range_get_selector_high(const struct linear_range *r,
                                                   ^
   include/linux/linear_range.h:44:54: warning: declaration of 'struct linear_range' will not be visible outside of this function [-Wvisibility]
   int linear_range_get_selector_low_array(const struct linear_range *r,
                                                        ^
>> drivers/regulator/fixed.c:223:32: error: implicit declaration of function 'of_get_required_opp_performance_state' [-Werror,-Wimplicit-function-declaration]
                   drvdata->performance_state = of_get_required_opp_performance_state(dev->of_node, 0);
                                                ^
   9 warnings and 2 errors generated.


vim +438 include/linux/pm_opp.h

   437	
 > 438	static struct inline dev_pm_opp *dev_pm_opp_from_clk_rate(struct device *dev)
   439	{
   440		return ERR_PTR(-EOPNOTSUPP);
   441	}
   442	

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