linux-kernel - Re: [PATCH] arm64/mm: Change protval as 'pteval_t' in map

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Message-ID: <dad7496b-265e-4910-986e-98cefea1b4d0@redhat.com>
Date: Mon, 11 Nov 2024 20:07:42 +1000
From: Gavin Shan <gshan@...hat.com>
To: Anshuman Khandual <anshuman.khandual@....com>,
 linux-arm-kernel@...ts.infradead.org
Cc: Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
 Ard Biesheuvel <ardb@...nel.org>, Ryan Roberts <ryan.roberts@....com>,
 Mark Rutland <mark.rutland@....com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64/mm: Change protval as 'pteval_t' in map_range()

On 11/11/24 5:52 PM, Anshuman Khandual wrote:
> pgprot_t has been defined as an encapsulated structure with pteval_t as its
> element. Hence it is prudent to use pteval_t as the type instead of via the
> size based u64. Besides pteval_t type might be different size later on with
> FEAT_D128.
> 
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Will Deacon <will@...nel.org>
> Cc: Ard Biesheuvel <ardb@...nel.org>
> Cc: Ryan Roberts <ryan.roberts@....com>
> Cc: Mark Rutland <mark.rutland@....com>
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
> ---
> This applies on v6.12-rc7
> 
>   arch/arm64/kernel/pi/map_range.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reviewed-by: Gavin Shan <gshan@...hat.com>