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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id j1-20020a63e741000000b003731be9e343si397619pgk.380.2022.03.08.16.44.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Mar 2022 16:44:30 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20210309 header.b=HxxanOKY; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id E8020D5562; Tue, 8 Mar 2022 16:00:03 -0800 (PST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236929AbiCGQnn (ORCPT + 99 others); Mon, 7 Mar 2022 11:43:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51248 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242183AbiCGQni (ORCPT ); Mon, 7 Mar 2022 11:43:38 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 50A4F35861; Mon, 7 Mar 2022 08:42:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=dZ5ezsuEtPttQFdHzk6smo3zWVoSu7+ceMuIlWOmZYs=; b=HxxanOKYrIkyKERJAGiE7BSo/F nw/zRMZwV6QO1ZCrfnsTpq52v9qrqMrbte7yL/NVifHFxBOQIjHe5kvab95AbpESaiG0ECtl5nJeg D/bfMiY+iZ2KA803m+moPurXBies0z8cDlU4/l3nCPW0y2kRS2yqCcpkJgabbxE2H8FBcaCxqqNHA yIJHE9wgYY2DGZpJ32vEZOOgVEDtXO15QBEtwBnvO7Gf9+FHZi5hqWb5FNxuxcJd4b2MfgWvHdBAy h+8582DZslTnxKpjHyR57RPI/lX+5Xhc3mh3qzGlIcr27X5rVppJ37R7s4bIRVvDaO1yVlSih5tiY 9zIJABww==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1nRGRS-000sgV-A6; Mon, 07 Mar 2022 16:42:38 +0000 Date: Mon, 7 Mar 2022 08:42:38 -0800 From: Christoph Hellwig To: Daehwan Jung Cc: Mathias Nyman , Greg Kroah-Hartman , "open list:USB XHCI DRIVER" , open list , Howard Yen , Jack Pham , Puma Hsu , "J . Avila" , sc.suh@samsung.com, cpgs@samsung.com, cpgsproxy5@samsung.com Subject: Re: [PATCH v2 4/4] usb: host: add xhci-exynos module Message-ID: References: <1646648256-105214-1-git-send-email-dh10.jung@samsung.com> <1646648256-105214-5-git-send-email-dh10.jung@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1646648256-105214-5-git-send-email-dh10.jung@samsung.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 07, 2022 at 07:17:36PM +0900, Daehwan Jung wrote: > This is for reference to introduce usb offload as seeing how a user does. > We only care DCBAA, Device Context, Transfer Ring, Event Ring, and ERST. > They are allocated on specific address(SRAM) for Co-Processor. > Co-processor could use them directly without xhci driver after then. No one cares about your "reference". Without a real, actual users crappy hooks like this are completely uninteresting.