linux-kernel - Re: [PATCH 0/2] x86/KASAN updates for 4.3

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Message-ID: <20150813090119.GA10280@arm.com>
Date:	Thu, 13 Aug 2015 10:01:19 +0100
From:	Will Deacon <will.deacon@....com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Andrey Ryabinin <ryabinin.a.a@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"x86@...nel.org" <x86@...nel.org>,
	Catalin Marinas <Catalin.Marinas@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Arnd Bergmann <arnd@...db.de>,
	Linus Walleij <linus.walleij@...aro.org>,
	David Keitel <dkeitel@...eaurora.org>,
	Alexander Potapenko <glider@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Alexey Klimov <klimov.linux@...il.com>,
	Yury <yury.norov@...il.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: Re: [PATCH 0/2] x86/KASAN updates for 4.3

Hi Ingo,

On Thu, Aug 13, 2015 at 09:16:41AM +0100, Ingo Molnar wrote:
> * Ingo Molnar <mingo@...nel.org> wrote:
> > * Andrey Ryabinin <ryabinin.a.a@...il.com> wrote:
> > 
> > > These 2 patches taken from v5 'KASAN for arm64' series.
> > > The only change is updated changelog in second patch.
> > > 
> > > I hope this is not too late to queue these for 4.3,
> > > as this allow us to merge arm64/KASAN patches in v4.4
> > > through arm64 tree.
> > > 
> > > Andrey Ryabinin (2):
> > >   x86/kasan: define KASAN_SHADOW_OFFSET per architecture
> > >   x86/kasan, mm: introduce generic kasan_populate_zero_shadow()
> > > 
> > >  arch/x86/include/asm/kasan.h |   3 +
> > >  arch/x86/mm/kasan_init_64.c  | 123 ++--------------------------------
> > >  include/linux/kasan.h        |  10 ++-
> > >  mm/kasan/Makefile            |   2 +-
> > >  mm/kasan/kasan_init.c        | 152 +++++++++++++++++++++++++++++++++++++++++++
> > >  5 files changed, 170 insertions(+), 120 deletions(-)
> > >  create mode 100644 mm/kasan/kasan_init.c
> > 
> > It's absolutely too late in the -rc cycle for v4.3!
> 
> Stupid me, I have read 'v4.2' ...
> 
> So yes, it's still good for v4.3, the development window is still open.
> 
> The rest still stands:
> 
> > I can create a stable topic tree for it, tip:mm/kasan or so, which arm64 could 
> > pull and base its own ARM specific work on, if that's OK with everyone.

Yes please, works for me! If we're targetting 4.3, then please can you base
on 4.2-rc4, as that's what our current arm64 queue is using?

Cheers,

Will
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