[hverkuil-media-tree:hdcp 4/4] drivers/media/i2c/adv7604.c:2884:38: warning: 'adv7604_ctrl_hdcp_auth' defined but not used

[kernel test robot]

tree:   git://linuxtv.org/hverkuil/media_tree.git hdcp
head:   da521c491aa5d01b7a920ef66c8d9aef36f14a02
commit: da521c491aa5d01b7a920ef66c8d9aef36f14a02 [4/4] Added HDCP support for ADV7604
config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220811/202208110550.PpJJO7J3-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        git remote add hverkuil-media-tree git://linuxtv.org/hverkuil/media_tree.git
        git fetch --no-tags hverkuil-media-tree hdcp
        git checkout da521c491aa5d01b7a920ef66c8d9aef36f14a02
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/media/i2c/

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

All warnings (new ones prefixed by >>):

>> drivers/media/i2c/adv7604.c:2884:38: warning: 'adv7604_ctrl_hdcp_auth' defined but not used [-Wunused-const-variable=]
    2884 | static const struct v4l2_ctrl_config adv7604_ctrl_hdcp_auth = {
         |                                      ^~~~~~~~~~~~~~~~~~~~~~


vim +/adv7604_ctrl_hdcp_auth +2884 drivers/media/i2c/adv7604.c

  2883	
> 2884	static const struct v4l2_ctrl_config adv7604_ctrl_hdcp_auth = {
  2885		.ops = NULL,
  2886		.id = V4L2_CID_DV_HDCP_RX_AUTH,
  2887		.name = "HDCP Authentication Status",
  2888		.type = V4L2_CTRL_TYPE_BITMASK,
  2889		.min = 0,
  2890		.max = 1,
  2891		.step = 0,
  2892		.def = 0,
  2893		.flags = V4L2_CTRL_FLAG_READ_ONLY
  2894	};
  2895	

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