linux-kernel - drivers/input/touchscreen/sun4i-ts.c:392:34: warning: unused variable 'sun4i_ts_of

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Message-ID: <202302220342.AqAtycBB-lkp@intel.com>
Date:   Wed, 22 Feb 2023 04:05:21 +0800
From:   kernel test robot <lkp@...el.com>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Subject: drivers/input/touchscreen/sun4i-ts.c:392:34: warning: unused
 variable 'sun4i_ts_of_match'

Hi Paul,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   9e58df973d2272e6e558965e7cb32453a4b380ff
commit: c434b9f80b0923e6460031b0fd964f8b0bf3c6a6 MIPS: Kconfig: add MIPS_GENERIC_KERNEL symbol
date:   2 years, 5 months ago
config: mips-randconfig-c004-20230217 (https://download.01.org/0day-ci/archive/20230222/202302220342.AqAtycBB-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project db89896bbbd2251fff457699635acbbedeead27f)
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-mipsel-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
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross  olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302220342.AqAtycBB-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/input/touchscreen/sun4i-ts.c:392:34: warning: unused variable 'sun4i_ts_of_match' [-Wunused-const-variable]
   static const struct of_device_id sun4i_ts_of_match[] = {
                                    ^
   1 warning generated.


vim +/sun4i_ts_of_match +392 drivers/input/touchscreen/sun4i-ts.c

f09f98d3240b7e Hans de Goede 2014-05-14  391  
6decea7c5438e2 Hans de Goede 2014-05-14 @392  static const struct of_device_id sun4i_ts_of_match[] = {
6decea7c5438e2 Hans de Goede 2014-05-14  393  	{ .compatible = "allwinner,sun4i-a10-ts", },
91c68a7c1d92b4 Hans de Goede 2015-03-08  394  	{ .compatible = "allwinner,sun5i-a13-ts", },
43c0e2234021d7 Chen-Yu Tsai  2015-01-26  395  	{ .compatible = "allwinner,sun6i-a31-ts", },
6decea7c5438e2 Hans de Goede 2014-05-14  396  	{ /* sentinel */ }
6decea7c5438e2 Hans de Goede 2014-05-14  397  };
6decea7c5438e2 Hans de Goede 2014-05-14  398  MODULE_DEVICE_TABLE(of, sun4i_ts_of_match);
6decea7c5438e2 Hans de Goede 2014-05-14  399  

:::::: The code at line 392 was first introduced by commit
:::::: 6decea7c5438e2955f64e2513ec9a2fac7602a7d Input: add driver for Allwinner sunxi SoC's rtp controller

:::::: TO: Hans de Goede <hdegoede@...hat.com>
:::::: CC: Dmitry Torokhov <dmitry.torokhov@...il.com>

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