linux-kernel - drivers/devfreq/imx-bus.c:120:34: warning: unused variable 'imx_bus_of

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Date:   Wed, 11 Nov 2020 10:43:06 +0800
From:   kernel test robot <lkp@...el.com>
To:     Leonard Crestez <leonard.crestez@....com>
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        linux-kernel@...r.kernel.org, Chanwoo Choi <cw00.choi@...sung.com>
Subject: drivers/devfreq/imx-bus.c:120:34: warning: unused variable
 'imx_bus_of_match'

Hi Leonard,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   eccc876724927ff3b9ff91f36f7b6b159e948f0c
commit: 5173a9756c8df9c387e04e49da0c4061951bbfec PM / devfreq: Add generic imx bus scaling driver
date:   6 months ago
config: x86_64-randconfig-a001-20201111 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 4d81c8adb6ed9840257f6cb6b93f60856d422a15)
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 x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5173a9756c8df9c387e04e49da0c4061951bbfec
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 5173a9756c8df9c387e04e49da0c4061951bbfec
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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/devfreq/imx-bus.c:120:34: warning: unused variable 'imx_bus_of_match' [-Wunused-const-variable]
   static const struct of_device_id imx_bus_of_match[] = {
                                    ^
   1 warning generated.

vim +/imx_bus_of_match +120 drivers/devfreq/imx-bus.c

   119	
 > 120	static const struct of_device_id imx_bus_of_match[] = {
   121		{ .compatible = "fsl,imx8m-noc", },
   122		{ .compatible = "fsl,imx8m-nic", },
   123		{ /* sentinel */ },
   124	};
   125	MODULE_DEVICE_TABLE(of, imx_bus_of_match);
   126	

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

Download attachment ".config.gz" of type "application/gzip" (40591 bytes)