From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752762AbdJPMtB (ORCPT ); Mon, 16 Oct 2017 08:49:01 -0400 Received: from mailout2.w1.samsung.com ([210.118.77.12]:60453 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752298AbdJPMs7 (ORCPT ); Mon, 16 Oct 2017 08:48:59 -0400 X-AuditID: cbfec7f2-f793b6d000003243-84-59e4aab8d40b Subject: Re: [PATCH 0/2] fix lockdep warnings in s5p_mfc and exynos-gsc vb2 drivers To: Shuah Khan , mchehab@kernel.org, hansverk@cisco.com, kgene@kernel.org, krzk@kernel.org, s.nawrocki@samsung.com, shailendra.v@samsung.com, shuah@kernel.org, Julia.Lawall@lip6.fr, kyungmin.park@samsung.com, kamil@wypas.org, jtp.park@samsung.com, a.hajda@samsung.com Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org From: Marek Szyprowski Message-id: Date: Mon, 16 Oct 2017 14:48:54 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-version: 1.0 In-reply-to: Content-type: text/plain; charset="utf-8"; format="flowed" Content-transfer-encoding: 7bit Content-language: en-US X-Brightmail-Tracker: H4sIAAAAAAAAA02Sa0hTYRjHeXfO2Tmulqd56elCwbp8SNKihEPmSOrDISiiSJgEOfOk2TZj S8ksM0ttmk6zmo11tcTmXDqnjDApNTUlLbSb0gwVQ1MbXiKzRnPHYN9+z+V9nuf/56UwySdi FXVSfYbTqBVKqVCE17fOdW9xmIflW3XuZUyftYtgXMW3EdNS9V7AlH/tRMzt9lyC0Q99x5ju 7mqSeZM1TjK2oQ8E0/PMJGSuVdcRTLntj4BpHvf0Pfw5hjE3Rq0kc3PGhe+m2RvzNQRrM+uE 7HN7Elv76CJr138h2UK7GbHTtrVsb8sl8iAVI9oVzylPpnKaMFmsKPFJxS389D3qrNNkEGai XmEe8qOA3gEjAx8JnoPhrfOpJy+iJPRjBE0NHRgfTCPoH5lE/180jxYSfKEcQcuHEpIPviH4 bDV4ZwXQR8DyZsa7I5C2CCD3inqBMZqD0dw6b15Ib4O8iTwvi2kZ2I3zggXG6Y1Q77J5OYg+ CpVlDpzvWQ6/Spxe9qMjoL/HJORn7oQRdzbB8zqotUxgPK+Ay9mf8YXjgDaTcKfKgvES9oI+ Z25RdACMtdlJnteA7upLAc96BFnZITyXIuiaEPMcAc1t7xaXLYPr9QbPTMqTF8PVHAnfwoJ+ en7R3ygw/XAuulXoMaimhCxC64w+eow+Gow+Gow+Gu4j3IwCuRStKoHTbg/VKlTaFHVC6PFk lQ15/lunu23KgWbbdzYhmkLSpeKKriG5hFCkatNUTQgoTBooLn00LJeI4xVp5zhN8jFNipLT NqHVFC5dIY6MyZFL6ATFGe4Ux53mNP+rAspvVSbSFfi/2O9w/DpUfDjJqomNziiL7xmAjFcn VK4K5WSNf2Vf/F+3/ejKucHwyHTnhX1ySTSbsOm1YX0b3ZpPjr/gDnQ3On8HNzqCwsL3TJ0P Kchw++uiOkym2bSOyLvuFEuc7EttaW6RKn/TZkHUg1JdQ8CSPxtk8sH0uJIYxZ1mKa5NVGzb jGm0in9QIIbAawMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrHIsWRmVeSWpSXmKPExsVy+t/xy7rbVz2JNOh6qWxxa905VosPE2cy WhxZe5XJYtmD04wWM0+0s1r0P37NbHH+/AZ2i7NNb9gtNj2+xmpxedccNoueDVtZLZZt+sNk cfgNUN2ib6+YLaa8XMduMfXLBxYHAY8pvzeyemxa1cnmsXdLlsfmJfUeW/rvsnv0bVnF6PF5 k5zHlSON7AEcUVw2Kak5mWWpRfp2CVwZK1dMYymYz1Fxb850tgbGK2xdjJwcEgImEodf9rFC 2GISF+6tB4sLCSxhlNi60bOLkQvIfs4osXThPbAiYYFQiTVnv7CBJEQE1jBJrNk0gxEkwSyQ KvHv3TZGiI4JjBI/J+9nB0mwCRhKdL3tAhvLK2AnsWXWbyYQm0VAVWLbh01gtqhAjMTEBxcZ IWoEJX5MvscCYnMKWEvcvjyHDWKBmcSXl4dZIWx5ic1r3jJD2OISza03WSYwCs5C0j4LScss JC2zkLQsYGRZxSiSWlqcm55bbKhXnJhbXJqXrpecn7uJERiL24793LyD8dLG4EOMAhyMSjy8 DBcfRwqxJpYVV+YeYpTgYFYS4Z2x5EmkEG9KYmVValF+fFFpTmrxIUZpDhYlcd7ePasjhQTS E0tSs1NTC1KLYLJMHJxSDYzZynnNJ7w0H2XzqLzeK2QioWt/+VlYYT3z6ZuLH6xJvcVwLb8i 5JFI9Kp1Fc843pYyPnda+6P1vlus5OEdn/3PiDy9pJB1a6vGI+4381pXT90xl2nB/uOP31in uQkW12lwxMoyLT2efLWSw3CVUvruRevP26buDnDm+l01O0TFIdHwa9SPCEMlluKMREMt5qLi RAAVa+CNwQIAAA== X-CMS-MailID: 20171016124855eucas1p280b66ab1497a06ca79d820bb6ed6e8e8 X-Msg-Generator: CA X-Sender-IP: 182.198.249.179 X-Local-Sender: =?UTF-8?B?TWFyZWsgU3p5cHJvd3NraRtTUlBPTC1LZXJuZWwgKFRQKRs=?= =?UTF-8?B?7IK87ISx7KCE7J6QG1NlbmlvciBTb2Z0d2FyZSBFbmdpbmVlcg==?= X-Global-Sender: =?UTF-8?B?TWFyZWsgU3p5cHJvd3NraRtTUlBPTC1LZXJuZWwgKFRQKRtT?= =?UTF-8?B?YW1zdW5nIEVsZWN0cm9uaWNzG1NlbmlvciBTb2Z0d2FyZSBFbmdpbmVlcg==?= X-Sender-Code: =?UTF-8?B?QzEwG0VIURtDMTBDRDAyQ0QwMjczOTI=?= CMS-TYPE: 201P X-CMS-RootMailID: 20171013231531epcas5p2f009317ed58f5177e7a0768b69a62b6c X-RootMTR: 20171013231531epcas5p2f009317ed58f5177e7a0768b69a62b6c References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Shuah, On 2017-10-14 01:13, Shuah Khan wrote: > Driver mmap functions shouldn't hold lock when calling vb2_mmap(). The > vb2_mmap() function has its own lock that it uses to protect the critical > section. > > Reference: commit log for f035eb4e976ef5a059e30bc91cfd310ff030a7d3 It would make sense to add the information about the reference commit to each commit message and also point to commit e752577ed7bf55c81e10343fced8b378cda2b63b, as it is exactly the same case here. Anyway: Acked-by: Marek Szyprowski I wonder if makes sense to send those patches also to stable@vget.kernel.org (maybe v4.3+, like the mentioned above commit, if they really apply?). > Shuah Khan (2): > media: exynos-gsc: fix lockdep warning > media: s5p-mfc: fix lockdep warning > > drivers/media/platform/exynos-gsc/gsc-m2m.c | 5 ----- > drivers/media/platform/s5p-mfc/s5p_mfc.c | 3 --- > 2 files changed, 8 deletions(-) > Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland