[PATCH] media: verisilicon: Add reference buffers compression

[kernel test robot]

Hi Benjamin,

kernel test robot noticed the following build warnings:

[auto build test WARNING on media-tree/master]
[also build test WARNING on pza/reset/next linuxtv-media-stage/master linus/master v6.9 next-20240515]
[cannot apply to pza/imx-drm/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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Benjamin-Gaignard/media-verisilicon-Add-reference-buffers-compression/20240515-002208
base:   git://linuxtv.org/media_tree.git master
patch link:    https://lore.kernel.org/r/20240514162054.294002-1-benjamin.gaignard%40collabora.com
patch subject: [PATCH] media: verisilicon: Add reference buffers compression
config: alpha-randconfig-r133-20240515 (https://download.01.org/0day-ci/archive/20240516/202405160544.3hBso24H-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20240516/202405160544.3hBso24H-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405160544.3hBso24H-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/media/platform/verisilicon/hantro_hevc.c:28:6: sparse: sparse: symbol 'hevc_use_compression' was not declared. Should it be static?

vim +/hevc_use_compression +28 drivers/media/platform/verisilicon/hantro_hevc.c

    27	
  > 28	bool hevc_use_compression;
    29	module_param_named(hevc_use_compression, hevc_use_compression, bool, 0644);
    30	MODULE_PARM_DESC(hevc_use_compression,
    31			 "Use reference frame compression for HEVC");
    32	

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