linux-ext4 - Re: [ext4:dev 27/31] ERROR: modpost: "jbd2_journal_unregister

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Date:   Wed, 30 Jun 2021 15:52:53 +0800
From:   Zhang Yi <yi.zhang@...wei.com>
To:     kernel test robot <lkp@...el.com>
CC:     <kbuild-all@...ts.01.org>, <linux-ext4@...r.kernel.org>,
        Theodore Ts'o <tytso@....edu>, Jan Kara <jack@...e.cz>
Subject: Re: [ext4:dev 27/31] ERROR: modpost:
 "jbd2_journal_unregister_shrinker" undefined!

On 2021/6/30 15:25, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev
> head:   d578b99443fde0968246cc7cbf3bc3016123c2f4
> commit: 4ba3fcdde7e36af93610ceb3cc38365b14539865 [27/31] jbd2,ext4: add a shrinker to release checkpointed buffers
> config: xtensa-randconfig-s032-20210628 (attached as .config)
> compiler: xtensa-linux-gcc (GCC) 9.3.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # apt-get install sparse
>         # sparse version: v0.6.3-341-g8af24329-dirty
>         # https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=4ba3fcdde7e36af93610ceb3cc38365b14539865
>         git remote add ext4 https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git
>         git fetch --no-tags ext4 dev
>         git checkout 4ba3fcdde7e36af93610ceb3cc38365b14539865
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=xtensa 
> 
> 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 >>, old ones prefixed by <<):
> 
>>> ERROR: modpost: "jbd2_journal_unregister_shrinker" undefined!
>>> ERROR: modpost: "jbd2_journal_register_shrinker" undefined!
> 

Oh, sorry, I forget to export these two function, I will send a fix patch soon.

Yi.