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Date:   Thu, 23 Jun 2022 12:36:15 -0400
From:   Gabriel Krisman Bertazi <>
To:     kernel test robot <>
Subject: Re: [PATCH 6/7] ext4: Enable negative dentries on case-insensitive

kernel test robot <> 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
> url:
> base: dev
> config: x86_64-randconfig-a006 (
> compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
> reproduce (this is a W=1 build):
>         #
>         git remote add linux-review
>         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 <>
> 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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