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Date: Tue, 16 Jan 2024 21:23:29 +0000
From: Lorenzo Stoakes <lstoakes@gmail.com>
To: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>, Baoquan He <bhe@redhat.com>,
	Christoph Hellwig <hch@infradead.org>,
	Matthew Wilcox <willy@infradead.org>,
	"Liam R . Howlett" <Liam.Howlett@oracle.com>,
	Dave Chinner <david@fromorbit.com>,
	Oleksiy Avramchenko <oleksiy.avramchenko@sony.com>,
	kernel test robot <lkp@intel.com>
Subject: Re: [PATCH 1/1] mm: vmalloc: Mark vmap_init_free_space() with __init
 tag
Message-ID: <6d09807d-0476-4d9d-8753-dd6520c9a2eb@lucifer.local>
References: <20240111132628.299644-1-urezki@gmail.com>
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In-Reply-To: <20240111132628.299644-1-urezki@gmail.com>

On Thu, Jan 11, 2024 at 02:26:28PM +0100, Uladzislau Rezki (Sony) wrote:
> The vmap_init_free_space() function is called only once
> therefore tag it with __init. Apart of that it access the
> "vmlist" variable that is located in ".init.data" section.
>
> Reported-by: kernel test robot <lkp@intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202401112056.I41bELL4-lkp@intel.com/
> Fixes: 86817057732 ("mm: vmalloc: remove global vmap_area_root rb-tree")
> Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
> ---
>  mm/vmalloc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/vmalloc.c b/mm/vmalloc.c
> index 43a6608e1397..257981e37936 100644
> --- a/mm/vmalloc.c
> +++ b/mm/vmalloc.c
> @@ -4834,7 +4834,7 @@ module_init(proc_vmalloc_init);
>
>  #endif
>
> -static void vmap_init_free_space(void)
> +static void __init vmap_init_free_space(void)
>  {
>  	unsigned long vmap_start = 1;
>  	const unsigned long vmap_end = ULONG_MAX;
> --
> 2.39.2
>

Looks good to me too. Feel free to add:

Reviewed-by: Lorenzo Stoakes <lstoakes@gmail.com>