From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) by kanga.kvack.org (Postfix) with ESMTP id D17D16B0005 for ; Mon, 15 Oct 2018 01:50:10 -0400 (EDT) Received: by mail-wr1-f70.google.com with SMTP id 93-v6so15328639wrb.2 for ; Sun, 14 Oct 2018 22:50:10 -0700 (PDT) Received: from newverein.lst.de (verein.lst.de. [213.95.11.211]) by mx.google.com with ESMTPS id z79-v6si7545199wmd.169.2018.10.14.22.50.09 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 14 Oct 2018 22:50:09 -0700 (PDT) Date: Mon, 15 Oct 2018 07:50:08 +0200 From: Christoph Hellwig Subject: Re: [PATCH 16/33] powerpc/powernv: remove dead npu-dma code Message-ID: <20181015055008.GA23344@lst.de> References: <20181009132500.17643-1-hch@lst.de> <20181009132500.17643-17-hch@lst.de> <7709932d-efb8-2c9b-5128-99cc491c302b@ozlabs.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7709932d-efb8-2c9b-5128-99cc491c302b@ozlabs.ru> Sender: owner-linux-mm@kvack.org List-ID: To: Alexey Kardashevskiy Cc: Christoph Hellwig , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , linuxppc-dev@lists.ozlabs.org, iommu@lists.linux-foundation.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org On Mon, Oct 15, 2018 at 12:34:02PM +1100, Alexey Kardashevskiy wrote: > > On 10/10/2018 00:24, Christoph Hellwig wrote: > > This code has been unused since it was merged and is in the way of > > cleaning up the DMA code, thus remove it. > > > > This effectively reverts commit 5d2aa710 ("powerpc/powernv: Add support > > for Nvlink NPUs"). > > > This code is heavily used by the NVIDIA GPU driver. Not by the that actually exists in the kernel tree, so it simply doesn't matter.