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=-5.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 95C18C43382 for ; Thu, 27 Sep 2018 05:19:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 333BB2156B for ; Thu, 27 Sep 2018 05:19:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 333BB2156B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727026AbeI0Lfx (ORCPT ); Thu, 27 Sep 2018 07:35:53 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:53914 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726631AbeI0Lfx (ORCPT ); Thu, 27 Sep 2018 07:35:53 -0400 Received: from localhost (ip-213-127-77-73.ip.prioritytelecom.net [213.127.77.73]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 21EA8BD8; Thu, 27 Sep 2018 05:19:27 +0000 (UTC) Date: Thu, 27 Sep 2018 07:19:25 +0200 From: Greg KH To: rkir@google.com Cc: linux-kernel@vger.kernel.org, tkjos@google.com, Lingfeng Yang Subject: Re: [PATCH v2 06/21] platform: goldfish: pipe: Add DMA support to goldfish pipe Message-ID: <20180927051925.GA473@kroah.com> References: <20180926230222.126513-1-rkir@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180926230222.126513-1-rkir@google.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 26, 2018 at 04:02:19PM -0700, rkir@google.com wrote: > From: Roman Kiryanov > > Goldfish DMA is an extension to the pipe device and is designed > to facilitate high-speed RAM->RAM transfers from guest to host. > > See uapi/linux/goldfish/goldfish_dma.h for more details. > > Signed-off-by: Roman Kiryanov > Signed-off-by: Lingfeng Yang > --- > Changes in v2: > - Got sign-off from Lingfeng Yang. > - Removed the license boilerplate from goldfish_dma.h. > - Rebased. I don't understand this series. Please start over with 01/XX as your other patches were all merged. And I still think you need a better justification for this, given the many other ways the kernel already has for this feature... thanks, greg k-h