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

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Message-ID: <CAAeHK+wdPDZkUSu+q1zb=YWxVD68mXqde9c+gYB4bb=zCsvbZw@mail.gmail.com>
Date:   Fri, 5 Feb 2021 16:49:23 +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 Mon, Feb 1, 2021 at 9:04 PM Andrey Konovalov <andreyknvl@...gle.com> wrote:
>
> 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.

Hi Vincenzo,

If you post a new version of this series, please include
EXPORT_SYMBOL(kasan_flag_async).

Thanks!

>
> 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