linux-kernel - Re: [PATCH v11 2/5] kasan: Add KASAN mode kernel parameter

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Message-ID: <CAAeHK+y=t4c5FfVx3r3Rvwg3GTYN_q1xme=mwk51hgQfJX9MZw@mail.gmail.com>
Date:   Mon, 1 Feb 2021 21:04:25 +0100
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     Vincenzo Frascino <vincenzo.frascino@....com>
Cc:     Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        kasan-dev <kasan-dev@...glegroups.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Marco Elver <elver@...gle.com>,
        Evgenii Stepanov <eugenis@...gle.com>,
        Branislav Rankov <Branislav.Rankov@....com>
Subject: Re: [PATCH v11 2/5] kasan: Add KASAN mode kernel parameter

On Sat, Jan 30, 2021 at 5:52 PM Vincenzo Frascino
<vincenzo.frascino@....com> wrote:
>
> @@ -45,6 +52,9 @@ static enum kasan_arg_fault kasan_arg_fault __ro_after_init;
>  DEFINE_STATIC_KEY_FALSE(kasan_flag_enabled);
>  EXPORT_SYMBOL(kasan_flag_enabled);
>
> +/* Whether the asynchronous mode is enabled. */
> +bool kasan_flag_async __ro_after_init;

Just noticed that we need EXPORT_SYMBOL(kasan_flag_async) here.

There are also a few arm64 mte functions that need to be exported, but
I've addressed that myself here:

https://lore.kernel.org/linux-arm-kernel/cover.1612208222.git.andreyknvl@google.com/T/#m4746d3c410c3f6baddb726fc9ea9dd1496a4a788