Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752701Ab0HZJp5 (ORCPT ); Thu, 26 Aug 2010 05:45:57 -0400 Received: from mailout-de.gmx.net ([213.165.64.23]:33008 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with SMTP id S1751582Ab0HZJpz (ORCPT ); Thu, 26 Aug 2010 05:45:55 -0400 X-Authenticated: #20450766 X-Provags-ID: V01U2FsdGVkX18vBuRxG2svxgMPIAT3VU3FIPs0iTYk9GoYJWvd9k bucem8zreKkMWH Date: Thu, 26 Aug 2010 11:45:58 +0200 (CEST) From: Guennadi Liakhovetski To: FUJITA Tomonori cc: mitov@issp.bas.bg, linux-kernel@vger.kernel.org, Linux Media Mailing List , Andrew Morton , linux-arm-kernel@lists.infradead.org, linux-sh@vger.kernel.org, u.kleine-koenig@pengutronix.de, philippe.retornaz@epfl.ch, gregkh@suse.de, jkrzyszt@tis.icnet.pl Subject: Re: [RFC][PATCH] add dma_reserve_coherent_memory()/dma_free_reserved_memory() API In-Reply-To: <20100826182915S.fujita.tomonori@lab.ntt.co.jp> Message-ID: References: <201008260904.19973.mitov@issp.bas.bg> <20100826152333K.fujita.tomonori@lab.ntt.co.jp> <20100826182915S.fujita.tomonori@lab.ntt.co.jp> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1082 Lines: 29 On Thu, 26 Aug 2010, FUJITA Tomonori wrote: > Why can't you revert a commit that causes the regression? See this reply, and the complete thread too. http://marc.info/?l=linux-sh&m=128130485208262&w=2 > The related DMA API wasn't changed in 2.6.36-rc1. The DMA API is not > responsible for the regression. And the patchset even exnteds the > definition of the DMA API (dma_declare_coherent_memory). Such change > shouldn't applied after rc1. I think that DMA-API.txt says that > dma_declare_coherent_memory() handles coherent memory for a particular > device. It's not for the API that reserves coherent memory that can be > used for any device for a single device. Anyway, we need a way to fix the regression. Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/