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([122.99.82.10]) by smtp.gmail.com with ESMTPSA id y12sm23503945pfn.187.2019.06.19.18.45.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 19 Jun 2019 18:45:46 -0700 (PDT) Subject: Re: [PATCH 3/4] powerpc/powernv: remove dead NPU DMA code To: Christoph Hellwig Cc: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org References: <20190523074924.19659-1-hch@lst.de> <20190523074924.19659-4-hch@lst.de> <20190619072837.GA6858@lst.de> From: Alexey Kardashevskiy Openpgp: preference=signencrypt Autocrypt: addr=aik@ozlabs.ru; keydata= mQINBE+rT0sBEADFEI2UtPRsLLvnRf+tI9nA8T91+jDK3NLkqV+2DKHkTGPP5qzDZpRSH6mD EePO1JqpVuIow/wGud9xaPA5uvuVgRS1q7RU8otD+7VLDFzPRiRE4Jfr2CW89Ox6BF+q5ZPV /pS4v4G9eOrw1v09lEKHB9WtiBVhhxKK1LnUjPEH3ifkOkgW7jFfoYgTdtB3XaXVgYnNPDFo PTBYsJy+wr89XfyHr2Ev7BB3Xaf7qICXdBF8MEVY8t/UFsesg4wFWOuzCfqxFmKEaPDZlTuR tfLAeVpslNfWCi5ybPlowLx6KJqOsI9R2a9o4qRXWGP7IwiMRAC3iiPyk9cknt8ee6EUIxI6 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DG9EMkK8IBXnLulqVk54kf7fE0jT/d8RTtJIA92GzsgdK2rpT1MBKKVffjRFGwN7nQVOzi4T XrB5p+6ML7Bd84xOEGsj/vdaXmz1esuH7BOZAGEZfLRCHJ0GVCSssg== Message-ID: Date: Thu, 20 Jun 2019 11:45:42 +1000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.1 MIME-Version: 1.0 In-Reply-To: <20190619072837.GA6858@lst.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0DE1C43613 for ; Thu, 20 Jun 2019 01:49:43 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 677AC214AF for ; Thu, 20 Jun 2019 01:49:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=ozlabs-ru.20150623.gappssmtp.com 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APXvYqydlj7IrbaimeUH7eEPfJxfBLMCn/tlktDhrkvDNmwx7Rhr66+loq1aYVEOKXxBDifQtG98Pg== X-Received: by 2002:a17:902:22e:: with SMTP id 43mr117455279plc.272.1560995146988; Wed, 19 Jun 2019 18:45:46 -0700 (PDT) Received: from [10.61.2.175] ([122.99.82.10]) by smtp.gmail.com with ESMTPSA id y12sm23503945pfn.187.2019.06.19.18.45.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 19 Jun 2019 18:45:46 -0700 (PDT) Subject: Re: [PATCH 3/4] powerpc/powernv: remove dead NPU DMA code To: Christoph Hellwig References: <20190523074924.19659-1-hch@lst.de> <20190523074924.19659-4-hch@lst.de> <20190619072837.GA6858@lst.de> From: Alexey Kardashevskiy Openpgp: preference=signencrypt Autocrypt: addr=aik@ozlabs.ru; keydata= mQINBE+rT0sBEADFEI2UtPRsLLvnRf+tI9nA8T91+jDK3NLkqV+2DKHkTGPP5qzDZpRSH6mD EePO1JqpVuIow/wGud9xaPA5uvuVgRS1q7RU8otD+7VLDFzPRiRE4Jfr2CW89Ox6BF+q5ZPV /pS4v4G9eOrw1v09lEKHB9WtiBVhhxKK1LnUjPEH3ifkOkgW7jFfoYgTdtB3XaXVgYnNPDFo 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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