linux-kernel - Re: [hnaz-mm:master 34/291] WARNING: modpost: vmlinux.o(.data+0x234bc8): Section mismatch in reference from the variable fc2580_driver to the function .init.text:set_reset

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Date:   Mon, 25 Apr 2022 10:04:27 +0200
From:   David Hildenbrand <david@...hat.com>
To:     kernel test robot <lkp@...el.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Johannes Weiner <hannes@...xchg.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: [hnaz-mm:master 34/291] WARNING: modpost:
 vmlinux.o(.data+0x234bc8): Section mismatch in reference from the variable
 fc2580_driver to the function .init.text:set_reset_devices()

On 24.04.22 06:21, kernel test robot wrote:
> tree:   https://github.com/hnaz/linux-mm master
> head:   ba42854fa9997614e0ffdbc35b082df3ba6e59da
> commit: 477a4d0f1f38e738d1a50d5005b79aca719c30bc [34/291] mm/hugetlb: take src_mm->write_protect_seq in copy_hugetlb_page_range()
> config: riscv-randconfig-r015-20220420 (https://download.01.org/0day-ci/archive/20220424/202204241241.dnUrBBvT-lkp@intel.com/config)
> compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project bac6cd5bf85669e3376610cfc4c4f9ca015e7b9b)
> 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 riscv cross compiling tool for clang build
>         # apt-get install binutils-riscv64-linux-gnu
>         # https://github.com/hnaz/linux-mm/commit/477a4d0f1f38e738d1a50d5005b79aca719c30bc
>         git remote add hnaz-mm https://github.com/hnaz/linux-mm
>         git fetch --no-tags hnaz-mm master
>         git checkout 477a4d0f1f38e738d1a50d5005b79aca719c30bc
>         # 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=riscv 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 >>, old ones prefixed by <<):
> 
>>> WARNING: modpost: vmlinux.o(.data+0x234bc8): Section mismatch in reference from the variable fc2580_driver to the function .init.text:set_reset_devices()
> The variable fc2580_driver references
> the function __init set_reset_devices()
> If the reference is valid then annotate the
> variable with or __refdata (see linux/init.h) or name the variable:

I don't see my patch causing that. Seems unrelated.

-- 
Thanks,

David / dhildenb