linux-kernel - Re: [mcgrof:sysctl-testing 12/18] mm/page-writeback.c:93:28: warning: unused variable 'dirty_bytes

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Message-ID: <YlntqSsx17+PReMW@bombadil.infradead.org>
Date:   Fri, 15 Apr 2022 15:11:53 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     kernel test robot <lkp@...el.com>
Cc:     zhanglianjie <zhanglianjie@...ontech.com>, llvm@...ts.linux.dev,
        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: [mcgrof:sysctl-testing 12/18] mm/page-writeback.c:93:28:
 warning: unused variable 'dirty_bytes_min'

On Fri, Apr 08, 2022 at 03:38:53PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git sysctl-testing
> head:   7cde53da38a3ea00d75ef6a6ab06fa85b80bcf87
> commit: 87125d15aa3c4046e902758a39062f213b3664ad [12/18] mm: move page-writeback sysctls to their own file
> config: s390-randconfig-r034-20220406 (https://download.01.org/0day-ci/archive/20220408/202204081510.D41wQr6m-lkp@intel.com/config)
> compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 6b306233f78876a1d197ed6e1f05785505de7c63)
> 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 s390 cross compiling tool for clang build
>         # apt-get install binutils-s390x-linux-gnu
>         # https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git/commit/?id=87125d15aa3c4046e902758a39062f213b3664ad
>         git remote add mcgrof https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git
>         git fetch --no-tags mcgrof sysctl-testing
>         git checkout 87125d15aa3c4046e902758a39062f213b3664ad
>         # save the config file to linux build tree
>         mkdir build_dir
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash
> 
> 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 >>):

I'll post a fix.

 Luis