linux-kernel - Re: [PATCH v7 0/8] arm64: untag user pointers passed to the kernel

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Date:   Wed, 3 Oct 2018 15:31:12 +0200
From:   Luc Van Oostenryck <luc.vanoostenryck@...il.com>
To:     Andrey Konovalov <andreyknvl@...gle.com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>,
        Robin Murphy <robin.murphy@....com>,
        Kees Cook <keescook@...omium.org>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Ingo Molnar <mingo@...nel.org>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        Shuah Khan <shuah@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org,
        linux-mm@...ck.org, linux-arch@...r.kernel.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Kostya Serebryany <kcc@...gle.com>,
        Evgeniy Stepanov <eugenis@...gle.com>,
        Lee Smith <Lee.Smith@....com>,
        Ramana Radhakrishnan <Ramana.Radhakrishnan@....com>,
        Jacob Bramley <Jacob.Bramley@....com>,
        Ruben Ayrapetyan <Ruben.Ayrapetyan@....com>,
        Chintan Pandya <cpandya@...eaurora.org>
Subject: Re: [PATCH v7 0/8] arm64: untag user pointers passed to the kernel

On Tue, Oct 02, 2018 at 03:12:35PM +0200, Andrey Konovalov wrote:
...

> Changes in v7:
> - Rebased onto 17b57b18 (4.19-rc6).
> - Dropped the "arm64: untag user address in __do_user_fault" patch, since
>   the existing patches already handle user faults properly.
> - Dropped the "usb, arm64: untag user addresses in devio" patch, since the
>   passed pointer must come from a vma and therefore be untagged.
> - Dropped the "arm64: annotate user pointers casts detected by sparse"
>   patch (see the discussion to the replies of the v6 of this patchset).
> - Added more context to the cover letter.
> - Updated Documentation/arm64/tagged-pointers.txt.

Hi,

I'm quite hapy now with what concerns me (sparse).
Please, feel free to add my:
Reviewed-by: Luc Van Oostenryck <luc.vanoostenryck@...il.com>


Cheers,
-- Luc Van Oostenryck