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Date: Mon, 4 Sep 2017 17:20:21 +0100
From: Ard Biesheuvel <>
To: Nicolas Pitre <>
Cc: "" <>, 
	Kernel Hardening <>, Arnd Bergmann <>, 
	Russell King <>, Kees Cook <>, 
	Thomas Garnier <>, Marc Zyngier <>, 
	Mark Rutland <>, Tony Lindgren <>, 
	Matt Fleming <>, Dave Martin <>
Subject: Re: [PATCH v2 08/29] ARM: head: use PC-relative insn sequence for __smp_alt

On 4 September 2017 at 17:19, Nicolas Pitre <> wrote:
> On Sun, 3 Sep 2017, Ard Biesheuvel wrote:
>> Replace the open coded PC relative offset calculations with a pair
>> of adr_l invocations. This ensures these quantities are invariant
>> under runtime relocation.
> You probably should add that this patch must be applied on top of "ARM:
> kernel: use relative references for UP/SMP alternatives" because of the
> expected r3 value prior to that patch.
> Acked-by: Nicolas Pitre <>

Yes, that is why I needed to reorder them. I will add a mention to the
commit log.


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