[openeuler:OLK-6.6 2527/2527] drivers/media/v4l2-core/v4l2-subdev.c:2253:10: error: call to undeclared function 'v4l2_subdev_get_locked_active_state'; ISO C99 and later do not support implicit function declarations

[openeuler:OLK-6.6 2527/2527] drivers/media/v4l2-core/v4l2-subdev.c:2253:10: error: call to undeclared function 'v4l2_subdev_get_locked_active_state'; ISO C99 and later do not support implicit function declarations

[kernel test robot]

tree:   https://gitee.com/openeuler/kernel.git OLK-6.6
head:   cbc572af8c3daa87a87df19c570fb3fd3ed99022
commit: c1be6d998806425f28600e867a8e9a2dd9bac741 [2527/2527] media: subdev: Add v4l2_subdev_is_streaming()
config: x86_64-buildonly-randconfig-004-20250718 (https://download.01.org/0day-ci/archive/20250718/202507181525.PYgxRhvq-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250718/202507181525.PYgxRhvq-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507181525.PYgxRhvq-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/media/v4l2-core/v4l2-subdev.c:2253:10: error: call to undeclared function 'v4l2_subdev_get_locked_active_state'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    2253 |         state = v4l2_subdev_get_locked_active_state(sd);
         |                 ^
>> drivers/media/v4l2-core/v4l2-subdev.c:2253:8: error: incompatible integer to pointer conversion assigning to 'struct v4l2_subdev_state *' from 'int' [-Wint-conversion]
    2253 |         state = v4l2_subdev_get_locked_active_state(sd);
         |               ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   2 errors generated.


vim +/v4l2_subdev_get_locked_active_state +2253 drivers/media/v4l2-core/v4l2-subdev.c

  2242	
  2243	bool v4l2_subdev_is_streaming(struct v4l2_subdev *sd)
  2244	{
  2245		struct v4l2_subdev_state *state;
  2246	
  2247		if (!v4l2_subdev_has_op(sd, pad, enable_streams))
  2248			return sd->s_stream_enabled;
  2249	
  2250		if (!(sd->flags & V4L2_SUBDEV_FL_STREAMS))
  2251			return !!sd->enabled_pads;
  2252	
> 2253		state = v4l2_subdev_get_locked_active_state(sd);
  2254	
  2255		for (unsigned int i = 0; i < state->stream_configs.num_configs; ++i) {
  2256			const struct v4l2_subdev_stream_config *cfg;
  2257	
  2258			cfg = &state->stream_configs.configs[i];
  2259	
  2260			if (cfg->enabled)
  2261				return true;
  2262		}
  2263	
  2264		return false;
  2265	}
  2266	EXPORT_SYMBOL_GPL(v4l2_subdev_is_streaming);
  2267	

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