linux-kernel - Re: [PATCH v3] arm64: Add workaround for Cavium erratum 27456

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Message-ID: <56CDF170.30509@caviumnetworks.com>
Date:	Wed, 24 Feb 2016 10:07:44 -0800
From:	David Daney <ddaney@...iumnetworks.com>
To:	Will Deacon <will.deacon@....com>
CC:	Marc Zyngier <marc.zyngier@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	David Daney <ddaney.cavm@...il.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	Mark Rutland <mark.rutland@....com>,
	<linux-kernel@...r.kernel.org>, Andrew Pinski <apinski@...ium.com>,
	David Daney <david.daney@...ium.com>
Subject: Re: [PATCH v3] arm64: Add workaround for Cavium erratum 27456

On 02/24/2016 10:06 AM, Will Deacon wrote:
> On Wed, Feb 24, 2016 at 10:03:02AM -0800, David Daney wrote:
>> On 02/24/2016 06:07 AM, Marc Zyngier wrote:
>>> On 24/02/16 13:40, Will Deacon wrote:
>>>
>>> [...]
>>>
>>>> (and Catalin, if you pick this up, watch out for the conflicts in
>>>> cpufeature.h)
>>>
>>> Yup, that one is about to become a minefield (ARM64_HAS_NO_HW_PREFETCH,
>>> ARM64_HAS_UAO, ARM64_ALT_PAN_NOT_UAO and ARM64_HAS_VIRT_HOST_EXTN are
>>> already happily clashing into -next). But hey, the more the merrier! ;-)
>>>
>>
>> Would you like me to rebase it to for-next/core ?
>
> I think ARM64_HAS_VIRT_HOST_EXTN is in the KVM tree, so you're probably
> best off looking at linux-next and choosing your feature number based on
> that, whilst basing the patch on either for-next/core or mainline.
>

OK, I will do that now.

David.

> Will
>