sound/soc/qcom/qdsp6/q6apm.c:30:14: sparse: sparse: symbol 'g_apm' was not declared. Should it be static?

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a1effab7a3a35a837dd9d2b974a1bc4939df1ad5
commit: 47bc8cf60e926d1fb0c5d990bf6f5e01e9b3352e ASoC: qdsp6: audioreach: Add ADSP ready check
date:   8 weeks ago
config: arm-randconfig-s042-20230322 (https://download.01.org/0day-ci/archive/20230322/202303222339.xUpUMsob-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=47bc8cf60e926d1fb0c5d990bf6f5e01e9b3352e
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 47bc8cf60e926d1fb0c5d990bf6f5e01e9b3352e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash sound/soc/qcom/qdsp6/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202303222339.xUpUMsob-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> sound/soc/qcom/qdsp6/q6apm.c:30:14: sparse: sparse: symbol 'g_apm' was not declared. Should it be static?

vim +/g_apm +30 sound/soc/qcom/qdsp6/q6apm.c

    29	
  > 30	struct q6apm *g_apm;
    31	

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https://github.com/intel/lkp-tests