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Date:   Thu, 23 Jun 2022 12:36:15 -0400
From:   Gabriel Krisman Bertazi <krisman@...labora.com>
To:     kernel test robot <lkp@...el.com>
Cc:     viro@...iv.linux.org.uk, tytso@....edu, jaegeuk@...nel.org,
        kbuild-all@...ts.01.org, ebiggers@...nel.org,
        linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, kernel@...labora.com
Subject: Re: [PATCH 6/7] ext4: Enable negative dentries on case-insensitive
 lookup

kernel test robot <lkp@...el.com> writes:

> Hi Gabriel,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on tytso-ext4/dev]
> [also build test ERROR on jaegeuk-f2fs/dev-test linus/master v5.19-rc3 next-20220622]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Gabriel-Krisman-Bertazi/Support-negative-dentries-on-case-insensitive-directories/20220623-034942
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev
> config: x86_64-randconfig-a006 (https://download.01.org/0day-ci/archive/20220623/202206231550.0JrilBjp-lkp@intel.com/config)
> compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
> reproduce (this is a W=1 build):
>         # https://github.com/intel-lab-lkp/linux/commit/69488ccc517a48af2f1cec0efb84651397edf6f6
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review Gabriel-Krisman-Bertazi/Support-negative-dentries-on-case-insensitive-directories/20220623-034942
>         git checkout 69488ccc517a48af2f1cec0efb84651397edf6f6
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
>
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@...el.com>
>
> All errors (new ones prefixed by >>, old ones prefixed by <<):
>
>>> ERROR: modpost: "d_set_casefold_lookup" [fs/ext4/ext4.ko] undefined!

Hm, missing the EXPORT_SYMBOL() since this is called from filesystems.
I will add it for v2.

-- 
Gabriel Krisman Bertazi

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