linux-kernel - Re: [PATCH v6 0/6] KASan for arm

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Message-ID: <fbdc3788-3a24-2885-b61b-8480e8464a51@gmail.com>
Date:   Mon, 7 Oct 2019 14:34:45 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Michal Hocko <mhocko@...e.com>,
        Julien Thierry <julien.thierry@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        David Howells <dhowells@...hat.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Andrey Ryabinin <ryabinin.a.a@...il.com>,
        Alexander Potapenko <glider@...gle.com>,
        kvmarm@...ts.cs.columbia.edu, Jonathan Corbet <corbet@....net>,
        Abbott Liu <liuwenliang@...wei.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Russell King <linux@...linux.org.uk>,
        kasan-dev <kasan-dev@...glegroups.com>,
        bcm-kernel-feedback-list <bcm-kernel-feedback-list@...adcom.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>, drjones@...hat.com,
        Vladimir Murzin <vladimir.murzin@....com>,
        Kees Cook <keescook@...omium.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Andre Przywara <andre.przywara@....com>, philip@....systems,
        Jinbum Park <jinb.park7@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Nicolas Pitre <nico@...xnic.net>,
        Greg KH <gregkh@...uxfoundation.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        Christoffer Dall <christoffer.dall@....com>,
        Rob Landley <rob@...dley.net>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Thomas Garnier <thgarnie@...gle.com>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: Re: [PATCH v6 0/6] KASan for arm

On 7/18/19 12:51 AM, Arnd Bergmann wrote:
> On Thu, Jul 11, 2019 at 7:00 PM Florian Fainelli
> <florian.fainelli@...adcom.com> wrote:
>> On 7/2/19 2:06 PM, Linus Walleij wrote:
> 
>>
>> Great, thanks a lot for taking a look. FYI, I will be on holiday from
>> July 19th till August 12th, if you think you have more feedback between
>> now and then, I can try to pick it up and submit a v7 with that feedback
>> addressed, or it will happen when I return, or you can pick it up if you
>> refer, all options are possible!
>>
>> @Arnd, should we squash your patches in as well?
> 
> Yes, please do. I don't remember if I sent you all of them already,
> here is the list of patches that I have applied locally on top of your
> series to get a clean randconfig build:
> 
> 123c3262f872 KASAN: push back KASAN_STACK to clang-10

This one seems to have received some feedback, not sure if it was
addressed or not in a subsequent patch?

> d63dd9e2afd9 [HACK] ARM: disable KASAN+XIP_KERNEL

That one has been squashed, we could always lift the XIP_KERNEL
restriction later once someone with suitable hardware confirms it works.

> 879eb3c22240 kasan: increase 32-bit stack frame warning limit

That one should be pushed separately.

> 053555034bdf kasan: disable CONFIG_KASAN_STACK with clang on arm32

This one I did not take based on Linus' feedback that is breaks booting
on his RealView board.

> 6c1a78a448c2 ARM: fix kasan link failures

This one was squashed relevant and will be sent out as v7.
-- 
Florian