linux-kernel - drivers/media/platform/intel/pxa_camera.c:2449:34: warning: unused variable 'pxa_camera_of

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Date:   Sun, 12 Feb 2023 07:45:33 +0800
From:   kernel test robot <lkp@...el.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: drivers/media/platform/intel/pxa_camera.c:2449:34: warning: unused
 variable 'pxa_camera_of_match'

Hi Mauro,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   47e9aa14ce5abca70d6584a8d8213707d197c38e
commit: 95495f2aa9d8df1a7697bab24118544d3568f41d media: platform: place Intel drivers on a separate dir
date:   11 months ago
config: hexagon-randconfig-r022-20230212 (https://download.01.org/0day-ci/archive/20230212/202302120714.YWaROisP-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project db0e6591612b53910a1b366863348bdb9d7d2fb1)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=95495f2aa9d8df1a7697bab24118544d3568f41d
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 95495f2aa9d8df1a7697bab24118544d3568f41d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/media/platform/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302120714.YWaROisP-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/media/platform/intel/pxa_camera.c:2449:34: warning: unused variable 'pxa_camera_of_match' [-Wunused-const-variable]
   static const struct of_device_id pxa_camera_of_match[] = {
                                    ^
   1 warning generated.


vim +/pxa_camera_of_match +2449 drivers/media/platform/intel/pxa_camera.c

7254026cedd42d drivers/media/video/pxa_camera.c               Guennadi Liakhovetski 2011-06-29  2448  
e9a1d94fa85542 drivers/media/platform/soc_camera/pxa_camera.c Robert Jarzmik        2014-06-29 @2449  static const struct of_device_id pxa_camera_of_match[] = {
e9a1d94fa85542 drivers/media/platform/soc_camera/pxa_camera.c Robert Jarzmik        2014-06-29  2450  	{ .compatible = "marvell,pxa270-qci", },
e9a1d94fa85542 drivers/media/platform/soc_camera/pxa_camera.c Robert Jarzmik        2014-06-29  2451  	{},
e9a1d94fa85542 drivers/media/platform/soc_camera/pxa_camera.c Robert Jarzmik        2014-06-29  2452  };
e9a1d94fa85542 drivers/media/platform/soc_camera/pxa_camera.c Robert Jarzmik        2014-06-29  2453  MODULE_DEVICE_TABLE(of, pxa_camera_of_match);
e9a1d94fa85542 drivers/media/platform/soc_camera/pxa_camera.c Robert Jarzmik        2014-06-29  2454  

:::::: The code at line 2449 was first introduced by commit
:::::: e9a1d94fa85542d4f3046ac82d234a3c8349c948 [media] media: pxa_camera device-tree support

:::::: TO: Robert Jarzmik <robert.jarzmik@...e.fr>
:::::: CC: Mauro Carvalho Chehab <m.chehab@...sung.com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests