Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp1988365pxu; Tue, 24 Nov 2020 14:02:46 -0800 (PST) X-Google-Smtp-Source: ABdhPJxN0vXpChN7S1K2Eut9caUckB+KWbTxZdzE+m/K3VlWVg9qK9dT/D4mBnUyWdOpC/kVhf6c X-Received: by 2002:a17:906:5396:: with SMTP id g22mr484000ejo.111.1606255366226; Tue, 24 Nov 2020 14:02:46 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1606255366; cv=none; d=google.com; s=arc-20160816; b=pa+CUFyktUsIT58QYmQqnQhjbHWW6XcoBB1uTcw0+NX/iJMHRK0pA3xds9c6om9rfk aWUt7oqjrb3PdMbFIbe22jab1sy3H9rxy28IvA9/OZvvT3I9tl/aYxNaXlx7Kj1IbwsA ON4GMZElZnjKA6k7ZD2yZ0U5g4A8mfiiNMeShA/b9s6Uv8HjNGw+LiSYtCzKhmkKaA8k jId7TgTDt+qVqHTLdLX3joSOiioOkJ4qYC2fHM5B0BrSrWnrJRAO77V4aQVDY8LyQhYt vu714v9H5vWM+UImwnm4ClanmQNAO95pusDF+MpG3a703SaO7SzNjvlNqUmdTiXUuQnL U5lA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=fDsUN36oe3pM2JrU02G8ugt/W39FKb7K1Vdt66V7Np0=; b=HJ/z9WkPYR0qclNE+QM3blfX/kn94JLzsiCZbKi9XYmzpuG5zvnrMfPQg8AlHNKm4S VGgAE99EP9za4mWwzzyNu29iCKs21Rd0xSWOeJxyhILa0EDedB6tqBJGrZxEX4SfNknr UvcbmCu/AtYk7Zs/rMYcJMVI5bXlbGHOFgKmd2HHTkGmWletFSkCFdtK1vnPBSO+Vj+q lLugoIlhCeVOfM463PQgR44eyP31sSEMkigKdF2AfGarGKWgtc6HZjfTNNfnK9AhNklz spy68CsjrJCz6YrTY0s9TtSVGdDVYHhyWH+Drzzojs8bkTsGbamtYU+NmwQZNdeI61vV eTKw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id p21si7438edw.573.2020.11.24.14.02.21; Tue, 24 Nov 2020 14:02:46 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388297AbgKXNdT (ORCPT + 99 others); Tue, 24 Nov 2020 08:33:19 -0500 Received: from verein.lst.de ([213.95.11.211]:54461 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388011AbgKXNdS (ORCPT ); Tue, 24 Nov 2020 08:33:18 -0500 Received: by verein.lst.de (Postfix, from userid 2407) id 4C5866736F; Tue, 24 Nov 2020 14:33:15 +0100 (CET) Date: Tue, 24 Nov 2020 14:33:15 +0100 From: Christoph Hellwig To: Ricardo Ribalda Cc: Christoph Hellwig , Mauro Carvalho Chehab , Marek Szyprowski , IOMMU DRIVERS , Joerg Roedel , Robin Murphy , Linux Doc Mailing List , Linux Kernel Mailing List , Linux Media Mailing List , Tomasz Figa , Sergey Senozhatsky Subject: Re: [PATCH] WIP! media: uvcvideo: Use dma_alloc_noncontiguos API Message-ID: <20201124133315.GA30214@lst.de> References: <20200930160917.1234225-9-hch@lst.de> <20201118142546.170621-1-ribalda@chromium.org> <20201124113512.GA21974@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 24, 2020 at 01:01:33PM +0100, Ricardo Ribalda wrote: > I was hoping that you could answer that question :). > > Do you have other use-cases than linux-media in mind? > > I think Sergey wants to experiment also with vb2, to figure out how > much it affects it. > His change will be much more complicated than mine thought, there are > more cornercases there. I don't have anything urgend lined up, although I think there are plenty other potential use cases. > > Can you respost a combined series to get started? > > Sure. Shall I also include the profiling patch? That is in the media code, right? I don't really care too much.