From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from aer-iport-3.cisco.com ([173.38.203.53]:19612 "EHLO aer-iport-3.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751801AbcD1Nmg (ORCPT ); Thu, 28 Apr 2016 09:42:36 -0400 Subject: Re: [PATCH v2] media: vb2-dma-contig: configure DMA max segment size properly To: Marek Szyprowski , linux-media@vger.kernel.org, linux-samsung-soc@vger.kernel.org References: <57220299.3000807@xs4all.nl> <1461849603-6313-1-git-send-email-m.szyprowski@samsung.com> <57221022.5040606@cisco.com> Cc: Sylwester Nawrocki , Laurent Pinchart , Krzysztof Kozlowski , Bartlomiej Zolnierkiewicz , Hans Verkuil From: Hans Verkuil Message-ID: <57221348.9020306@cisco.com> Date: Thu, 28 Apr 2016 15:42:32 +0200 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 04/28/2016 03:39 PM, Marek Szyprowski wrote: > Hello, > > > On 2016-04-28 15:29, Hans Verkuil wrote: >> On 04/28/2016 03:20 PM, Marek Szyprowski wrote: >>> This patch lets vb2-dma-contig memory allocator to configure DMA max >>> segment size properly for the client device. Setting it is needed to let >>> DMA-mapping subsystem to create a single, contiguous mapping in DMA >>> address space. This is essential for all devices, which use dma-contig >>> videobuf2 memory allocator and shared buffers (in USERPTR or DMAbuf modes >>> of operations). >>> >>> Signed-off-by: Marek Szyprowski >> Acked-by: Hans Verkuil >> >> Should this go in for 4.7? (might be too late) Should this go into older >> kernels as well? Oops, typo. I meant 4.6, not 4.7. I gather that committing this for 4.6 is not necessary, so I just queue it up for 4.7. Regards, Hans