linux-kernel - Re: [PATCH 3/4] powerpc/powernv: remove dead NPU DMA code

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Message-ID: <b0ce7d72-5de7-63d3-cb4e-ea78342cb3fa@ozlabs.ru>
Date:   Thu, 20 Jun 2019 11:45:42 +1000
From:   Alexey Kardashevskiy <aik@...abs.ru>
To:     Christoph Hellwig <hch@....de>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] powerpc/powernv: remove dead NPU DMA code



On 19/06/2019 17:28, Christoph Hellwig wrote:
> On Wed, Jun 19, 2019 at 10:34:54AM +1000, Alexey Kardashevskiy wrote:
>>
>>
>> On 23/05/2019 17:49, Christoph Hellwig wrote:
>>> None of these routines were ever used since they were added to the
>>> kernel.
>>
>>
>> It is still being used exactly in the way as it was explained before in
>> previous respins. Thanks.
> 
> Please point to the in-kernel user, because that is the only relevant
> one.  This is not just my opinion but we had a clear discussion on that
> at least years kernel summit.


There is no in-kernel user which still does not mean that the code is
dead. If it is irrelevant - put this to the commit log instead of saying
it is dead; also if there was a clear outcome from that discussion, then
please point me to that, I do not get to attend these discussions. Thanks,


-- 
Alexey