linux-kernel - Re: [PATCH] mm: add mmap_prepare() compatibility layer for nested file systems

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Message-ID: <a54bea89-cad6-4d9a-af5c-f2a6b42640cb@lucifer.local>
Date: Mon, 9 Jun 2025 16:45:54 +0100
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: kernel test robot <lkp@...el.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, oe-kbuild-all@...ts.linux.dev,
        Linux Memory Management List <linux-mm@...ck.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>,
        "Liam R . Howlett" <Liam.Howlett@...cle.com>,
        Vlastimil Babka <vbabka@...e.cz>, Jann Horn <jannh@...gle.com>,
        Pedro Falcato <pfalcato@...e.de>, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: add mmap_prepare() compatibility layer for nested
 file systems

On Mon, Jun 09, 2025 at 11:40:25PM +0800, kernel test robot wrote:
> Hi Lorenzo,
>
> kernel test robot noticed the following build warnings:
>
> [auto build test WARNING on akpm-mm/mm-everything]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Lorenzo-Stoakes/mm-add-mmap_prepare-compatibility-layer-for-nested-file-systems/20250609-172628
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
> patch link:    https://lore.kernel.org/r/20250609092413.45435-1-lorenzo.stoakes%40oracle.com
> patch subject: [PATCH] mm: add mmap_prepare() compatibility layer for nested file systems
> config: arc-randconfig-002-20250609 (https://download.01.org/0day-ci/archive/20250609/202506092301.jUMzAZW1-lkp@intel.com/config)
> compiler: arc-linux-gcc (GCC) 10.5.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250609/202506092301.jUMzAZW1-lkp@intel.com/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202506092301.jUMzAZW1-lkp@intel.com/
>
> All warnings (new ones prefixed by >>):
>
> >> Warning: mm/mmap.c:1921 function parameter 'vma' not described in 'compat_vma_mmap_prepare'
>

Thanks, this is due to a silly typo, I put ';' when I meant to say ':' :)

I asked Andrew to fix it in https://lore.kernel.org/linux-mm/dddd402f-1705-41a2-8806-543d0bfff5bc@lucifer.local/

> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki


Cheers, Lorenzo