drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c:49:34: warning: unused variable 'mdp_of_ids'

From: kernel test robot
Date: Fri Feb 10 2023 - 03:29:38 EST


Hi Moudy,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 38c1e0c65865426676123cc9a127526fa02bcac6
commit: 61890ccaefaff89f5babd2c8412fd222c3f5fe38 media: platform: mtk-mdp3: add MediaTek MDP3 driver
date: 5 months ago
config: hexagon-randconfig-r024-20230210 (https://download.01.org/0day-ci/archive/20230210/202302101603.xNtJ8p91-lkp@xxxxxxxxx/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=61890ccaefaff89f5babd2c8412fd222c3f5fe38
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 61890ccaefaff89f5babd2c8412fd222c3f5fe38
# 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/mediatek/mdp3/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202302101603.xNtJ8p91-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c:49:34: warning: unused variable 'mdp_of_ids' [-Wunused-const-variable]
static const struct of_device_id mdp_of_ids[] = {
^
1 warning generated.
--
>> drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c:607:34: warning: unused variable 'mdp_comp_dt_ids' [-Wunused-const-variable]
static const struct of_device_id mdp_comp_dt_ids[] = {
^
>> drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c:627:34: warning: unused variable 'mdp_sub_comp_dt_ids' [-Wunused-const-variable]
static const struct of_device_id mdp_sub_comp_dt_ids[] = {
^
2 warnings generated.


vim +/mdp_of_ids +49 drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c

48
> 49 static const struct of_device_id mdp_of_ids[] = {
50 { .compatible = "mediatek,mt8183-mdp3-rdma",
51 .data = &mt8183_mdp_driver_data,
52 },
53 {},
54 };
55 MODULE_DEVICE_TABLE(of, mdp_of_ids);
56

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