[pinchartl-media:gmsl/max9286/bindings 2/45] drivers/media/v4l2-core/v4l2-subdev.c:951:10: error: implicit declaration of function '__v4l2_subdev_state_alloc'

[kernel test robot <lkp@intel.com>]

tree:   git://linuxtv.org/pinchartl/media.git gmsl/max9286/bindings
head:   b551a93fb443867f1a950d6063910639bd303daf
commit: 3e5486c9f448f3d9067b1050ed189db7d062fdf4 [2/45] media: subdev: add active state to struct v4l2_subdev
config: x86_64-randconfig-r015-20211216 (https://download.01.org/0day-ci/archive/20211217/202112171557.AF8ndfET-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 9043c3d65b11b442226015acfbf8167684586cfa)
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
        git remote add pinchartl-media git://linuxtv.org/pinchartl/media.git
        git fetch --no-tags pinchartl-media gmsl/max9286/bindings
        git checkout 3e5486c9f448f3d9067b1050ed189db7d062fdf4
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/media/v4l2-core/

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/media/v4l2-core/v4l2-subdev.c:951:10: error: implicit declaration of function '__v4l2_subdev_state_alloc' [-Werror,-Wimplicit-function-declaration]
           state = __v4l2_subdev_state_alloc(sd);
                   ^
>> drivers/media/v4l2-core/v4l2-subdev.c:951:8: warning: incompatible integer to pointer conversion assigning to 'struct v4l2_subdev_state *' from 'int' [-Wint-conversion]
           state = __v4l2_subdev_state_alloc(sd);
                 ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/media/v4l2-core/v4l2-subdev.c:963:2: error: implicit declaration of function '__v4l2_subdev_state_free' [-Werror,-Wimplicit-function-declaration]
           __v4l2_subdev_state_free(sd->active_state);
           ^
   1 warning and 2 errors generated.


vim +/__v4l2_subdev_state_alloc +951 drivers/media/v4l2-core/v4l2-subdev.c

   946	
   947	int v4l2_subdev_init_finalize(struct v4l2_subdev *sd)
   948	{
   949		struct v4l2_subdev_state *state;
   950	
 > 951		state = __v4l2_subdev_state_alloc(sd);
   952		if (IS_ERR(state))
   953			return PTR_ERR(state);
   954	
   955		sd->active_state = state;
   956	
   957		return 0;
   958	}
   959	EXPORT_SYMBOL_GPL(v4l2_subdev_init_finalize);
   960	
   961	void v4l2_subdev_cleanup(struct v4l2_subdev *sd)
   962	{
 > 963		__v4l2_subdev_state_free(sd->active_state);

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