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

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Message-ID: <202204191631.zjUg442L-lkp@intel.com>
Date:   Tue, 19 Apr 2022 16:48:07 +0800
From:   kernel test robot <lkp@...el.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        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:   b2d229d4ddb17db541098b83524d901257e93845
commit: 95495f2aa9d8df1a7697bab24118544d3568f41d media: platform: place Intel drivers on a separate dir
date:   5 weeks ago
config: mips-randconfig-r025-20220419 (https://download.01.org/0day-ci/archive/20220419/202204191631.zjUg442L-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c1c49a356162b22554088d269f7689bdb044a9f1)
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
        # install mips cross compiling tool for clang build
        # apt-get install binutils-mips-linux-gnu
        # 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=mips SHELL=/bin/bash drivers/media/platform/intel/ lib/lz4/

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/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.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for SSB_EMBEDDED
   Depends on SSB && SSB_DRIVER_MIPS && SSB_PCICORE_HOSTMODE
   Selected by
   - BCM47XX_SSB && BCM47XX


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://01.org/lkp