linux-kernel - drivers/watchdog/pic32-wdt.c:159:34: warning: unused variable 'pic32_wdt_dt

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Date:   Fri, 22 Apr 2022 07:16:56 +0800
From:   kernel test robot <lkp@...el.com>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Subject: drivers/watchdog/pic32-wdt.c:159:34: warning: unused variable
 'pic32_wdt_dt_ids'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   b253435746d9a4a701b5f09211b9c14d3370d0da
commit: c434b9f80b0923e6460031b0fd964f8b0bf3c6a6 MIPS: Kconfig: add MIPS_GENERIC_KERNEL symbol
date:   1 year, 7 months ago
config: mips-randconfig-r005-20220422 (https://download.01.org/0day-ci/archive/20220422/202204220754.nuORtA1j-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5bd87350a5ae429baf8f373cb226a57b62f87280)
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=c434b9f80b0923e6460031b0fd964f8b0bf3c6a6
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout c434b9f80b0923e6460031b0fd964f8b0bf3c6a6
        # 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=mips SHELL=/bin/bash drivers/staging/media/hantro/ drivers/watchdog/

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/watchdog/pic32-wdt.c:159:34: warning: unused variable 'pic32_wdt_dt_ids' [-Wunused-const-variable]
   static const struct of_device_id pic32_wdt_dt_ids[] = {
                                    ^
   1 warning generated.


vim +/pic32_wdt_dt_ids +159 drivers/watchdog/pic32-wdt.c

8f91fc56bc439a Joshua Henderson 2016-02-26  158  
8f91fc56bc439a Joshua Henderson 2016-02-26 @159  static const struct of_device_id pic32_wdt_dt_ids[] = {
8f91fc56bc439a Joshua Henderson 2016-02-26  160  	{ .compatible = "microchip,pic32mzda-wdt", },
8f91fc56bc439a Joshua Henderson 2016-02-26  161  	{ /* sentinel */ }
8f91fc56bc439a Joshua Henderson 2016-02-26  162  };
8f91fc56bc439a Joshua Henderson 2016-02-26  163  MODULE_DEVICE_TABLE(of, pic32_wdt_dt_ids);
8f91fc56bc439a Joshua Henderson 2016-02-26  164  

:::::: The code at line 159 was first introduced by commit
:::::: 8f91fc56bc439a5baefae598040d263f48526596 watchdog: pic32-wdt: Add PIC32 watchdog driver

:::::: TO: Joshua Henderson <joshua.henderson@...rochip.com>
:::::: CC: Ralf Baechle <ralf@...ux-mips.org>

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