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Date:   Fri, 8 Jan 2021 17:26:10 +0000
From:   Vincenzo Frascino <>
To:     Andrey Konovalov <>
Cc:     Linux ARM <>,
        LKML <>,
        kasan-dev <>,
        Catalin Marinas <>,
        Will Deacon <>,
        Dmitry Vyukov <>,
        Andrey Ryabinin <>,
        Alexander Potapenko <>,
        Marco Elver <>,
        Evgenii Stepanov <>,
        Branislav Rankov <>
Subject: Re: [PATCH 2/4] arm64: mte: Add asynchronous mode support

Hi Andrey,

On 1/8/21 1:36 PM, Andrey Konovalov wrote:
> Perhaps we could add a generic arch-agnostic enum to
> include/linux/kasan.h and use it in both arm64 and KASAN code?
> enum kasan_hw_tags_mode {
> }
> Assuming other architectures that support memory tagging will end up
> with sync/async mode separation as well, this should work. But even if
> that doesn't happen, this interface can be adjusted later.

I am fine with this solution, I will add it in my v3.
As part of the enumeration I will add READ_SYNC mode as well, so we have all the
possible combinations.


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