linux-kernel - Re: [PATCH 02/26] arm64/iommu: improve mmap bounds checking

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Message-ID: <a96caa67-ac59-9ce8-aabc-2601c9a10203@arm.com>
Date:   Tue, 30 Apr 2019 12:38:19 +0100
From:   Robin Murphy <robin.murphy@....com>
To:     Christoph Hellwig <hch@....de>
Cc:     Joerg Roedel <joro@...tes.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Tom Lendacky <thomas.lendacky@....com>,
        iommu@...ts.linux-foundation.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 02/26] arm64/iommu: improve mmap bounds checking

On 29/04/2019 20:01, Christoph Hellwig wrote:
> On Mon, Apr 29, 2019 at 01:35:46PM +0100, Robin Murphy wrote:
>> On 22/04/2019 18:59, Christoph Hellwig wrote:
>>> The nr_pages checks should be done for all mmap requests, not just those
>>> using remap_pfn_range.
>>
>> I think it probably makes sense now to just squash this with #22 one way or
>> the other, but if you really really still want to keep it as a separate
>> patch with a misleading commit message then I'm willing to keep my
>> complaints to myself :)
> 
> Well, I split this out in response to your earlier comments, so if you
> prefer it squasheѕ back in I can do that..

AFAICS I only ever suggested splitting the original "fix and refactor" 
commit into the fix (patch #1) and the refactor - I think we've just 
ended up adding more "refactor" on top in the evolution of the series :)

Robin.