linux-kernel - Re: arch/powerpc/platforms/pseries/reconfig.c:394:30: error: 'ofdt_proc

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Message-ID: <CAFqt6zYiKP+jK_=_wmcMPYQyCxhroKkdMVy7qXhksh-V6HM=EQ@mail.gmail.com>
Date:   Thu, 26 Nov 2020 00:43:39 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     kernel test robot <lkp@...el.com>
Cc:     Alexey Dobriyan <adobriyan@...il.com>, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: arch/powerpc/platforms/pseries/reconfig.c:394:30: error:
 'ofdt_proc_ops' defined but not used

On Tue, Nov 24, 2020 at 12:40 PM kernel test robot <lkp@...el.com> wrote:
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   d5beb3140f91b1c8a3d41b14d729aefa4dcc58bc
> commit: 97a32539b9568bb653683349e5a76d02ff3c3e2c proc: convert everything to "struct proc_ops"
> date:   10 months ago
> config: powerpc-randconfig-r002-20201124 (attached as .config)
> compiler: powerpc64le-linux-gcc (GCC) 9.3.0
> 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=97a32539b9568bb653683349e5a76d02ff3c3e2c
>         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>         git fetch --no-tags linus master
>         git checkout 97a32539b9568bb653683349e5a76d02ff3c3e2c
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
>
> All errors (new ones prefixed by >>):
>
> >> arch/powerpc/platforms/pseries/reconfig.c:394:30: error: 'ofdt_proc_ops' defined but not used [-Werror=unused-const-variable=]
>      394 | static const struct proc_ops ofdt_proc_ops = {
>          |                              ^~~~~~~~~~~~~
>    cc1: all warnings being treated as errors
> --
> >> arch/powerpc/platforms/pseries/lparcfg.c:701:30: error: 'lparcfg_proc_ops' defined but not used [-Werror=unused-const-variable=]
>      701 | static const struct proc_ops lparcfg_proc_ops = {
>          |                              ^~~~~~~~~~~~~~~~
>    cc1: all warnings being treated as errors

Both ofdt_proc_ops & lparcfg_proc_ops are used by proc_create().
Not sure why it is throwing warnings.

>
> vim +/ofdt_proc_ops +394 arch/powerpc/platforms/pseries/reconfig.c
>
>    393
>  > 394  static const struct proc_ops ofdt_proc_ops = {
>    395          .proc_write     = ofdt_write,
>    396          .proc_lseek     = noop_llseek,
>    397  };
>    398
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org