From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1211EC433E0 for ; Sun, 31 May 2020 22:00:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DBFB1206F1 for ; Sun, 31 May 2020 22:00:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="ptLSHDxV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728379AbgEaWAW (ORCPT ); Sun, 31 May 2020 18:00:22 -0400 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:3708 "EHLO hqnvemgate26.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727084AbgEaWAV (ORCPT ); Sun, 31 May 2020 18:00:21 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Sun, 31 May 2020 15:00:09 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Sun, 31 May 2020 15:00:21 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Sun, 31 May 2020 15:00:21 -0700 Received: from [10.2.56.10] (10.124.1.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Sun, 31 May 2020 22:00:12 +0000 Subject: Re: [PATCH 0/2] video: fbdev: fix error handling, convert to pin_user_pages*() To: Andy Shevchenko CC: Sam Ravnborg , LKML , "linux-fbdev@vger.kernel.org" , Arnd Bergmann , "Gustavo A . R . Silva" , "Jani Nikula" , Daniel Vetter , Bartlomiej Zolnierkiewicz , "dri-devel@lists.freedesktop.org" , "Paul Mundt" References: <20200522041506.39638-1-jhubbard@nvidia.com> <20200531205819.GC138722@ravnborg.org> <854fae07-3cb4-dbcf-fa93-35b447f9d084@nvidia.com> From: John Hubbard X-Nvconfidentiality: public Message-ID: Date: Sun, 31 May 2020 15:00:12 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.1 MIME-Version: 1.0 In-Reply-To: X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL105.nvidia.com (172.20.187.12) To HQMAIL107.nvidia.com (172.20.187.13) Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1590962409; bh=mOAHg3HWAQU+SMgvhvLbwcrCiN0aIfRDvzo6PURxuws=; h=X-PGP-Universal:Subject:To:CC:References:From:X-Nvconfidentiality: Message-ID:Date:User-Agent:MIME-Version:In-Reply-To: X-Originating-IP:X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=ptLSHDxVso3RmTaVpqglneBPvQzg2bSY6Fo4uzSa9phJrDAwaSIV3oBEMcttBX3x2 qsP/G2Hr7T8kQOqLlPnrSjvDPtNX21coIAGNE0MtSY4Tu4gedBmuomvOKgDlBd5bYR T6X/fSnMmgVhJtsXHbwOeEqU61FkQjt47VAprGjOG600hSdouVmaCoTwI5Sx0/WLi2 ZndYhUYCfEDX/21wOQorRxy2t4ssGitG6CiCLcE8WfxY6Ap5FYLbEbLhjBdkRSHnH5 7tJGjJjs722imCo81uA2nV5XcM3a0cuO0fFxm88tw7yPsoxRzX33C6C7p7ACs/EYkw 0+E6YvRcvKT7Q== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020-05-31 14:11, Andy Shevchenko wrote: > ... > JFYI, we have history.git starting from v0.01. > OK, thanks for that note. According to that history.git [1], then: drivers/video/pvr2fb.c had get_user_pages_fast() support added to pvr2fb_write() back in 2004, but only for CONFIG_SH_DMA, as part of commit 434502754f2 ("[PATCH] SH Merge") ...and that commit created the minor bug that patch 0001 here addresses. (+Cc Paul just for the sake of completeness.) [1] git://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git thanks, -- John Hubbard NVIDIA