linux-kernel - drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c:50:17: warning: 'anx781x_i2c

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Date:   Wed, 11 May 2022 13:43:28 +0800
From:   kernel test robot <lkp@...el.com>
To:     Icenowy Zheng <icenowy@...c.io>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Maxime Ripard <maxime@...no.tech>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Torsten Duwe <duwe@...e.de>,
        Andrzej Hajda <a.hajda@...sung.com>
Subject: drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c:50:17: warning:
 'anx781x_i2c_addresses' defined but not used

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   feb9c5e19e913b53cb536a7aa7c9f20107bb51ec
commit: 5d97408e0d70a7c7c5942ba95260bab7c9e21eb4 drm/bridge: move ANA78xx driver to analogix subdirectory
date:   2 years, 6 months ago
config: x86_64-randconfig-a013 (https://download.01.org/0day-ci/archive/20220511/202205111306.DCEG8q0G-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5d97408e0d70a7c7c5942ba95260bab7c9e21eb4
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 5d97408e0d70a7c7c5942ba95260bab7c9e21eb4
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/bridge/analogix/

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

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c:50:17: warning: 'anx781x_i2c_addresses' defined but not used [-Wunused-const-variable=]
      50 | static const u8 anx781x_i2c_addresses[] = {
         |                 ^~~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c:42:17: warning: 'anx7808_i2c_addresses' defined but not used [-Wunused-const-variable=]
      42 | static const u8 anx7808_i2c_addresses[] = {
         |                 ^~~~~~~~~~~~~~~~~~~~~


vim +/anx781x_i2c_addresses +50 drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c

0647e7dd3f7ab2e drivers/gpu/drm/bridge/analogix-anx78xx.c Enric Balletbo i Serra 2016-05-02  41  
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22 @42  static const u8 anx7808_i2c_addresses[] = {
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  43  	[I2C_IDX_TX_P0] = 0x78,
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  44  	[I2C_IDX_TX_P1] = 0x7a,
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  45  	[I2C_IDX_TX_P2] = 0x72,
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  46  	[I2C_IDX_RX_P0] = 0x7e,
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  47  	[I2C_IDX_RX_P1] = 0x80,
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  48  };
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  49  
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22 @50  static const u8 anx781x_i2c_addresses[] = {
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  51  	[I2C_IDX_TX_P0] = 0x70,
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  52  	[I2C_IDX_TX_P1] = 0x7a,
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  53  	[I2C_IDX_TX_P2] = 0x72,
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  54  	[I2C_IDX_RX_P0] = 0x7e,
025910db8057f60 drivers/gpu/drm/bridge/analogix-anx78xx.c Brian Masney           2019-09-22  55  	[I2C_IDX_RX_P1] = 0x80,
0647e7dd3f7ab2e drivers/gpu/drm/bridge/analogix-anx78xx.c Enric Balletbo i Serra 2016-05-02  56  };
0647e7dd3f7ab2e drivers/gpu/drm/bridge/analogix-anx78xx.c Enric Balletbo i Serra 2016-05-02  57  

:::::: The code at line 50 was first introduced by commit
:::::: 025910db8057f60d2d2aa11002f7751e3eb66588 drm/bridge: analogix-anx78xx: add support for 7808 addresses

:::::: TO: Brian Masney <masneyb@...tation.org>
:::::: CC: Andrzej Hajda <a.hajda@...sung.com>

-- 
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