drivers/media/platform/marvell-ccic/mmp-driver.c:366:34: warning: unused variable 'mmpcam_of_match'

From: kernel test robot
Date: Fri Feb 11 2022 - 01:25:37 EST


Hi Arnd,

First bad commit (maybe != root cause):

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: f1baf68e1383f6ed93eb9cff2866d46562607a43
commit: b408b611eb951594691abfee8ca687b405d27757 mips: ar7: convert to CONFIG_COMMON_CLK
date: 8 months ago
config: mips-buildonly-randconfig-r001-20220211 (https://download.01.org/0day-ci/archive/20220211/202202111412.5iSkckar-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project f6685f774697c85d6a352dcea013f46a99f9fe31)
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=b408b611eb951594691abfee8ca687b405d27757
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout b408b611eb951594691abfee8ca687b405d27757
# 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=mips SHELL=/bin/bash drivers/media/platform/atmel/ drivers/media/platform/marvell-ccic/

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

All warnings (new ones prefixed by >>):

>> drivers/media/platform/marvell-ccic/mmp-driver.c:366:34: warning: unused variable 'mmpcam_of_match' [-Wunused-const-variable]
static const struct of_device_id mmpcam_of_match[] = {
^
1 warning generated.


vim +/mmpcam_of_match +366 drivers/media/platform/marvell-ccic/mmp-driver.c

bb0a896e3d5083 drivers/media/video/marvell-ccic/mmp-driver.c Jonathan Corbet 2011-12-30 365
83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 @366 static const struct of_device_id mmpcam_of_match[] = {
83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 367 { .compatible = "marvell,mmp2-ccic", },
83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 368 {},
83c40e6611ec1e drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-05-28 369 };
08aac0e32fe44b drivers/media/platform/marvell-ccic/mmp-driver.c Lubomir Rintel 2019-07-22 370 MODULE_DEVICE_TABLE(of, mmpcam_of_match);
67a8dbbc4e04cd drivers/media/video/marvell-ccic/mmp-driver.c Jonathan Corbet 2011-06-11 371

:::::: The code at line 366 was first introduced by commit
:::::: 83c40e6611ec1e548ece34f6940f516333abc16a media: marvell-ccic/mmp: add devicetree support

:::::: TO: Lubomir Rintel <lkundrak@xxxxx>
:::::: CC: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>

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