From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756702Ab1D3Mum (ORCPT ); Sat, 30 Apr 2011 08:50:42 -0400 Received: from casper.infradead.org ([85.118.1.10]:35373 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753516Ab1D3Muk (ORCPT ); Sat, 30 Apr 2011 08:50:40 -0400 Message-ID: <4DBC0598.9060101@infradead.org> Date: Sat, 30 Apr 2011 09:50:32 -0300 From: Mauro Carvalho Chehab User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101208 Red Hat/3.1.7-3.el6_0 Thunderbird/3.1.7 MIME-Version: 1.0 To: Patrick Boettcher CC: Florian Mickler , oliver@neukum.org, linux-kernel@vger.kernel.org, Linux Media Mailing List Subject: Re: [media] dib0700: get rid of on-stack dma buffers References: <1301851423-21969-1-git-send-email-florian@mickler.org> <4DBB2E72.3030800@infradead.org> <20110430114609.53103d67@schatten.dmk.lab> In-Reply-To: <20110430114609.53103d67@schatten.dmk.lab> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.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 Patrick, Em 30-04-2011 06:46, Florian Mickler escreveu: > On Fri, 29 Apr 2011 18:32:34 -0300 > Mauro Carvalho Chehab wrote: > >> As it is a trivial fix, I'll be picking it directly. > > Zdenek reported in the bug that it doesn't fix all instances of the > warning. Could you please take a look on it? I'll apply the patch anyway, as at least it will reduce the stack size and partially fix the issue, but, as Florian and Zdenek pointed, there are still some cases were stack pointers are used to pass data to URB's, and this is forbidden (and don't even work on some architectures). Mauro.