From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 26 Jun 2013 16:52:42 +0200 (CEST) Received: from localhost.localdomain ([127.0.0.1]:48410 "EHLO linux-mips.org" rhost-flags-OK-OK-OK-FAIL) by eddie.linux-mips.org with ESMTP id S6827823Ab3FZOwhyhQS9 (ORCPT ); Wed, 26 Jun 2013 16:52:37 +0200 Received: from scotty.linux-mips.net (localhost.localdomain [127.0.0.1]) by scotty.linux-mips.net (8.14.5/8.14.4) with ESMTP id r5QEqaXb009341; Wed, 26 Jun 2013 16:52:36 +0200 Received: (from ralf@localhost) by scotty.linux-mips.net (8.14.5/8.14.5/Submit) id r5QEqYIY009340; Wed, 26 Jun 2013 16:52:34 +0200 Date: Wed, 26 Jun 2013 16:52:34 +0200 From: Ralf Baechle To: "Steven J. Hill" Cc: linux-mips@linux-mips.org, Leonid Yegoshin , Florian Fainelli Subject: Re: [PATCH v2] Revert "MIPS: make CAC_ADDR and UNCAC_ADDR account for PHYS_OFFSET" Message-ID: <20130626145234.GB7171@linux-mips.org> References: <1371742590-10138-1-git-send-email-Steven.Hill@imgtec.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1371742590-10138-1-git-send-email-Steven.Hill@imgtec.com> User-Agent: Mutt/1.5.21 (2010-09-15) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 37134 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ralf@linux-mips.org Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On Thu, Jun 20, 2013 at 10:36:30AM -0500, Steven J. Hill wrote: > From: Leonid Yegoshin > > This reverts commit 3f4579252aa166641861a64f1c2883365ca126c2. It is > invalid because the macros CAC_ADDR and UNCAC_ADDR have a kernel > virtual address as an argument and also returns a kernel virtual > address. Using and physical address PHYS_OFFSET is blatantly wrong > for a macro common to multiple platforms. While the patch itself is looking sane at a glance, I'm wondering if this is fixing any actual bug or is just the result of a code review? Ralf