Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752304AbcDRMMu (ORCPT ); Mon, 18 Apr 2016 08:12:50 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:59927 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751044AbcDRMMs (ORCPT ); Mon, 18 Apr 2016 08:12:48 -0400 Date: Mon, 18 Apr 2016 05:12:47 -0700 From: Christoph Hellwig To: Sinan Kaya Cc: linux-rdma@vger.kernel.org, timur@codeaurora.org, cov@codeaurora.org, Yishai Hadas , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH V2] net: ethernet: mellanox: correct page conversion Message-ID: <20160418121247.GA25387@infradead.org> References: <1460845412-13120-1-git-send-email-okaya@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1460845412-13120-1-git-send-email-okaya@codeaurora.org> User-Agent: Mutt/1.5.24 (2015-08-30) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 300 Lines: 6 On Sat, Apr 16, 2016 at 06:23:32PM -0400, Sinan Kaya wrote: > Current code is assuming that the address returned by dma_alloc_coherent > is a logical address. This is not true on ARM/ARM64 systems. Can you explain what you mean with a 'logical address' and what actual issue you're trying to solve?