linux-kernel - drivers/spi/spi-sh-msiof.c:1076:34: warning: unused variable 'sh_msiof

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Message-ID: <202108041907.J88rdV2n-lkp@intel.com>
Date:   Wed, 4 Aug 2021 19:55:19 +0800
From:   kernel test robot <lkp@...el.com>
To:     Sid Manning <sidneym@...eaurora.org>
Cc:     clang-built-linux@...glegroups.com, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Brian Cain <bcain@...eaurora.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: drivers/spi/spi-sh-msiof.c:1076:34: warning: unused variable
 'sh_msiof_match'

Hi Sid,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   d5ad8ec3cfb56a017de6a784835666475b4be349
commit: 788dcee0306e1bdbae1a76d1b3478bb899c5838e Hexagon: fix build errors
date:   3 months ago
config: hexagon-randconfig-r024-20210804 (attached as .config)
compiler: clang version 12.0.0
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=788dcee0306e1bdbae1a76d1b3478bb899c5838e
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 788dcee0306e1bdbae1a76d1b3478bb899c5838e
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=hexagon 

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/spi/spi-sh-msiof.c:1076:34: warning: unused variable 'sh_msiof_match' [-Wunused-const-variable]
   static const struct of_device_id sh_msiof_match[] = {
                                    ^
   1 warning generated.


vim +/sh_msiof_match +1076 drivers/spi/spi-sh-msiof.c

50a7e23f536779 Geert Uytterhoeven 2014-02-25  1075  
50a7e23f536779 Geert Uytterhoeven 2014-02-25 @1076  static const struct of_device_id sh_msiof_match[] = {
50a7e23f536779 Geert Uytterhoeven 2014-02-25  1077  	{ .compatible = "renesas,sh-mobile-msiof", .data = &sh_data },
bdacfc7b6216dd Fabrizio Castro    2017-09-25  1078  	{ .compatible = "renesas,msiof-r8a7743",   .data = &rcar_gen2_data },
bdacfc7b6216dd Fabrizio Castro    2017-09-25  1079  	{ .compatible = "renesas,msiof-r8a7745",   .data = &rcar_gen2_data },
61a8dec502b873 Geert Uytterhoeven 2017-07-12  1080  	{ .compatible = "renesas,msiof-r8a7790",   .data = &rcar_gen2_data },
61a8dec502b873 Geert Uytterhoeven 2017-07-12  1081  	{ .compatible = "renesas,msiof-r8a7791",   .data = &rcar_gen2_data },
61a8dec502b873 Geert Uytterhoeven 2017-07-12  1082  	{ .compatible = "renesas,msiof-r8a7792",   .data = &rcar_gen2_data },
61a8dec502b873 Geert Uytterhoeven 2017-07-12  1083  	{ .compatible = "renesas,msiof-r8a7793",   .data = &rcar_gen2_data },
61a8dec502b873 Geert Uytterhoeven 2017-07-12  1084  	{ .compatible = "renesas,msiof-r8a7794",   .data = &rcar_gen2_data },
61a8dec502b873 Geert Uytterhoeven 2017-07-12  1085  	{ .compatible = "renesas,rcar-gen2-msiof", .data = &rcar_gen2_data },
61a8dec502b873 Geert Uytterhoeven 2017-07-12  1086  	{ .compatible = "renesas,msiof-r8a7796",   .data = &rcar_gen3_data },
61a8dec502b873 Geert Uytterhoeven 2017-07-12  1087  	{ .compatible = "renesas,rcar-gen3-msiof", .data = &rcar_gen3_data },
264c3e8de4fbda Simon Horman       2016-12-20  1088  	{ .compatible = "renesas,sh-msiof",        .data = &sh_data }, /* Deprecated */
50a7e23f536779 Geert Uytterhoeven 2014-02-25  1089  	{},
50a7e23f536779 Geert Uytterhoeven 2014-02-25  1090  };
50a7e23f536779 Geert Uytterhoeven 2014-02-25  1091  MODULE_DEVICE_TABLE(of, sh_msiof_match);
50a7e23f536779 Geert Uytterhoeven 2014-02-25  1092  

:::::: The code at line 1076 was first introduced by commit
:::::: 50a7e23f53677918bf521b09ce9bb20fb87cd175 spi: sh-msiof: Move default FIFO sizes to device ID data

:::::: TO: Geert Uytterhoeven <geert+renesas@...ux-m68k.org>
:::::: CC: Mark Brown <broonie@...aro.org>

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

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