linux-kernel - Re: [PATCH 1/2] mm: remove the specific name of arm64

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Date:   Mon, 11 May 2020 11:45:48 +0100
From:   Will Deacon <will@...nel.org>
To:     Zong Li <zong.li@...ive.com>
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] mm: remove the specific name of arm64

On Mon, May 11, 2020 at 02:28:19PM +0800, Zong Li wrote:
> UXN is the name of arm64 page-table descriptors.
> 
> Signed-off-by: Zong Li <zong.li@...ive.com>
> CC: Will Deacon <will@...nel.org>
> ---
>  mm/Kconfig.debug | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
> index e19f94c6df90..b8cbe035247f 100644
> --- a/mm/Kconfig.debug
> +++ b/mm/Kconfig.debug
> @@ -130,8 +130,6 @@ config DEBUG_WX
>  
>  	  This is useful for discovering cases where the kernel is leaving W+X
>  	  mappings after applying NX, as such mappings are a security risk.
> -	  This check also includes UXN, which should be set on all kernel
> -	  mappings.
>  
>  	  Look for a message in dmesg output like this:

Acked-by: Will Deacon <will@...nel.org>

The commit message needs help, but I'm assuming Andrew will just fold this
into the other patch so it doesn't matter.

Will