linux-kernel - drivers/media/platform/mediatek/mdp/mtk_mdp_core.c:31:34: warning: unused variable 'mtk_mdp_comp_dt

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <202212041607.fd6UXQjO-lkp@intel.com>
Date:   Sun, 4 Dec 2022 16:09:59 +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/mediatek/mdp/mtk_mdp_core.c:31:34: warning:
 unused variable 'mtk_mdp_comp_dt_ids'

Hi Mauro,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   c2bf05db6c78f53ca5cd4b48f3b9b71f78d215f1
commit: 2023a99811110aebba9eee4aa09ef7bd21a8a249 media: platform: rename mediatek/mtk-jpeg/ to mediatek/jpeg/
date:   9 months ago
config: hexagon-randconfig-r006-20221204
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 6e4cea55f0d1104408b26ac574566a0e4de48036)
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=2023a99811110aebba9eee4aa09ef7bd21a8a249
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 2023a99811110aebba9eee4aa09ef7bd21a8a249
        # 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 SHELL=/bin/bash drivers/media/platform/mediatek/mdp/

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

All warnings (new ones prefixed by >>):

>> drivers/media/platform/mediatek/mdp/mtk_mdp_core.c:31:34: warning: unused variable 'mtk_mdp_comp_dt_ids' [-Wunused-const-variable]
   static const struct of_device_id mtk_mdp_comp_dt_ids[] = {
                                    ^
   1 warning generated.


vim +/mtk_mdp_comp_dt_ids +31 drivers/media/platform/mediatek/mdp/mtk_mdp_core.c

c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  30  
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08 @31  static const struct of_device_id mtk_mdp_comp_dt_ids[] = {
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  32  	{
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  33  		.compatible = "mediatek,mt8173-mdp-rdma",
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  34  		.data = (void *)MTK_MDP_RDMA
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  35  	}, {
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  36  		.compatible = "mediatek,mt8173-mdp-rsz",
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  37  		.data = (void *)MTK_MDP_RSZ
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  38  	}, {
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  39  		.compatible = "mediatek,mt8173-mdp-wdma",
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  40  		.data = (void *)MTK_MDP_WDMA
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  41  	}, {
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  42  		.compatible = "mediatek,mt8173-mdp-wrot",
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  43  		.data = (void *)MTK_MDP_WROT
55d80506c5f7c3 drivers/media/platform/mtk-mdp/mtk_mdp_core.c Vincent Stehlé 2016-10-27  44  	},
55d80506c5f7c3 drivers/media/platform/mtk-mdp/mtk_mdp_core.c Vincent Stehlé 2016-10-27  45  	{ },
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  46  };
c8eb2d7e8202fd drivers/media/platform/mtk-mdp/mtk_mdp_core.c Minghsiu Tsai  2016-09-08  47  

:::::: The code at line 31 was first introduced by commit
:::::: c8eb2d7e8202fd9cb912f5d33cc34ede66dcb24a [media] media: Add Mediatek MDP Driver

:::::: TO: Minghsiu Tsai <minghsiu.tsai@...iatek.com>
:::::: CC: Mauro Carvalho Chehab <mchehab@...pensource.com>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

View attachment "config" of type "text/plain" (113783 bytes)