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From: kernel test robot <lkp@intel.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
	Linux Memory Management List <linux-mm@kvack.org>,
	linux-media@vger.kernel.org
Subject: [linux-next:master 12537/13576] drivers/media/platform/samsung/s5p-jpeg/jpeg-core.c:3126:34: warning: unused variable 'samsung_jpeg_match'
Date: Fri, 18 Mar 2022 21:52:25 +0800	[thread overview]
Message-ID: <202203182100.fSdmSXzo-lkp@intel.com> (raw)

Hi Mauro,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   6d72dda014a4753974eb08950089ddf71fec4f60
commit: 26f8b7e57c52a79c5e7c238e1deec08c0fb77b97 [12537/13576] media: platform: rename s5p-jpeg/ to samsung/s5p-jpeg/
config: hexagon-randconfig-r015-20220317 (https://download.01.org/0day-ci/archive/20220318/202203182100.fSdmSXzo-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a6e70e4056dff962ec634c5bd4f2f4105a0bef71)
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/next/linux-next.git/commit/?id=26f8b7e57c52a79c5e7c238e1deec08c0fb77b97
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 26f8b7e57c52a79c5e7c238e1deec08c0fb77b97
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/media/platform/samsung/s5p-jpeg/

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

All warnings (new ones prefixed by >>):

>> drivers/media/platform/samsung/s5p-jpeg/jpeg-core.c:3126:34: warning: unused variable 'samsung_jpeg_match' [-Wunused-const-variable]
   static const struct of_device_id samsung_jpeg_match[] = {
                                    ^
   1 warning generated.


vim +/samsung_jpeg_match +3126 drivers/media/platform/samsung/s5p-jpeg/jpeg-core.c

6c96dbbc2aa9f5 drivers/media/platform/s5p-jpeg/jpeg-core.c Andrzej Pietrasiewicz 2015-09-18  3125  
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18 @3126  static const struct of_device_id samsung_jpeg_match[] = {
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3127  	{
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3128  		.compatible = "samsung,s5pv210-jpeg",
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3129  		.data = &s5p_jpeg_drvdata,
3246fdaa0ac2d9 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2014-07-11  3130  	}, {
3246fdaa0ac2d9 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2014-07-11  3131  		.compatible = "samsung,exynos3250-jpeg",
3246fdaa0ac2d9 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2014-07-11  3132  		.data = &exynos3250_jpeg_drvdata,
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3133  	}, {
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3134  		.compatible = "samsung,exynos4210-jpeg",
3246fdaa0ac2d9 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2014-07-11  3135  		.data = &exynos4_jpeg_drvdata,
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3136  	}, {
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3137  		.compatible = "samsung,exynos4212-jpeg",
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3138  		.data = &exynos4_jpeg_drvdata,
7c15fd4bf3d367 drivers/media/platform/s5p-jpeg/jpeg-core.c Andrzej Pietrasiewicz 2015-03-09  3139  	}, {
7c15fd4bf3d367 drivers/media/platform/s5p-jpeg/jpeg-core.c Andrzej Pietrasiewicz 2015-03-09  3140  		.compatible = "samsung,exynos5420-jpeg",
7c15fd4bf3d367 drivers/media/platform/s5p-jpeg/jpeg-core.c Andrzej Pietrasiewicz 2015-03-09  3141  		.data = &exynos5420_jpeg_drvdata,
6c96dbbc2aa9f5 drivers/media/platform/s5p-jpeg/jpeg-core.c Andrzej Pietrasiewicz 2015-09-18  3142  	}, {
6c96dbbc2aa9f5 drivers/media/platform/s5p-jpeg/jpeg-core.c Andrzej Pietrasiewicz 2015-09-18  3143  		.compatible = "samsung,exynos5433-jpeg",
6c96dbbc2aa9f5 drivers/media/platform/s5p-jpeg/jpeg-core.c Andrzej Pietrasiewicz 2015-09-18  3144  		.data = &exynos5433_jpeg_drvdata,
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3145  	},
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3146  	{},
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3147  };
80529ae5c13725 drivers/media/platform/s5p-jpeg/jpeg-core.c Jacek Anaszewski      2013-12-18  3148  

:::::: The code at line 3126 was first introduced by commit
:::::: 80529ae5c13725e12ba0377e29b2160794ba6b25 [media] s5p-jpeg:  JPEG codec

:::::: TO: Jacek Anaszewski <j.anaszewski@samsung.com>
:::::: CC: Mauro Carvalho Chehab <m.chehab@samsung.com>

---
0-DAY CI Kernel Test Service
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

                 reply	other threads:[~2022-03-18 13:52 UTC|newest]

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