[tobetter:odroidm1-4.19.y 4348/9999] sound/soc/soc-core.c:761:27: warning: no previous prototype for function 'soc_find_component_locked'

[kernel test robot]

Hi Aditya,

FYI, the error/warning still remains.

tree:   https://github.com/tobetter/linux odroidm1-4.19.y
head:   9c4982fe4e77325e4d0861cea11b239d8200b585
commit: 75fe91933be2dd4b884ca83bd72e1e0f0d05cfc6 [4348/9999] ANDROID: ASoC: core: add locked version of soc_find_component
config: x86_64-randconfig-a014 (https://download.01.org/0day-ci/archive/20220406/202204060317.N87e8kq1-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c4a1b07d0979e7ff20d7d541af666d822d66b566)
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/tobetter/linux/commit/75fe91933be2dd4b884ca83bd72e1e0f0d05cfc6
        git remote add tobetter https://github.com/tobetter/linux
        git fetch --no-tags tobetter odroidm1-4.19.y
        git checkout 75fe91933be2dd4b884ca83bd72e1e0f0d05cfc6
        # 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 sound/soc/

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

All warnings (new ones prefixed by >>):

>> sound/soc/soc-core.c:761:27: warning: no previous prototype for function 'soc_find_component_locked' [-Wmissing-prototypes]
   struct snd_soc_component *soc_find_component_locked(
                             ^
   sound/soc/soc-core.c:761:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   struct snd_soc_component *soc_find_component_locked(
   ^
   static 
   1 warning generated.
   sound/soc/soc-core.c:2971: warning: Excess function parameter 'legacy_dai_naming' description in 'snd_soc_register_dais'
   sound/soc/soc-core.c:3333: warning: Function parameter or member 'online' not described in 'snd_soc_card_change_online_state'


vim +/soc_find_component_locked +761 sound/soc/soc-core.c

   750	
   751	/**
   752	 * soc_find_component_locked: soc_find_component with client lock acquired
   753	 *
   754	 * @of_node: of_node of the component to query.
   755	 * @name: name of the component to query.
   756	 *
   757	 * function to find out if a component is already registered with ASoC core.
   758	 *
   759	 * Returns component handle for success, else NULL error.
   760	 */
 > 761	struct snd_soc_component *soc_find_component_locked(
   762		const struct device_node *of_node, const char *name)
   763	{
   764		struct snd_soc_component *component = NULL;
   765	
   766		mutex_lock(&client_mutex);
   767		component = soc_find_component(of_node, name);
   768		mutex_unlock(&client_mutex);
   769		return component;
   770	}
   771	EXPORT_SYMBOL(soc_find_component_locked);
   772	

-- 
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https://01.org/lkp