Subject: Re: [PATCH V4 01/11] arm64: mm: Remove bit-masking optimisations for PAGE_OFFSET and VMEMMAP_START

From: Catalin Marinas <[email-masked]>
Date: Mon, 5 Aug 2019 12:07:08 +0100

On Mon, Jul 29, 2019 at 05:21:07PM +0100, Steve Capper wrote:
> Currently there are assumptions about the alignment of VMEMMAP_START
> and PAGE_OFFSET that won't be valid after this series is applied.
> 
> These assumptions are in the form of bitwise operators being used
> instead of addition and subtraction when calculating addresses.
> 
> This patch replaces these bitwise operators with addition/subtraction.
> 
> Signed-off-by: Steve Capper <[email-masked]>

Reviewed-by: Catalin Marinas <[email-masked]>

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