Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752031AbeAQEX5 (ORCPT + 1 other); Tue, 16 Jan 2018 23:23:57 -0500 Received: from mail-vk0-f42.google.com ([209.85.213.42]:45105 "EHLO mail-vk0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750823AbeAQEXz (ORCPT ); Tue, 16 Jan 2018 23:23:55 -0500 X-Google-Smtp-Source: ACJfBotIyDXuuDJdEmtLHlw+kFjtlc+Xs6Egaa6TwZovMm5k/yjZuv8s3xwz9QzeH1rG+gGiD9D7hQ== MIME-Version: 1.0 In-Reply-To: <20180116132540.18939-3-jeffy.chen@rock-chips.com> References: <20180116132540.18939-1-jeffy.chen@rock-chips.com> <20180116132540.18939-3-jeffy.chen@rock-chips.com> From: Tomasz Figa Date: Wed, 17 Jan 2018 13:23:33 +0900 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2 02/13] iommu/rockchip: Suppress unbinding To: Jeffy Chen Cc: linux-kernel@vger.kernel.org, Ricky Liang , Robin Murphy , simon xue , Heiko Stuebner , "open list:ARM/Rockchip SoC..." , "open list:IOMMU DRIVERS" , Joerg Roedel , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: On Tue, Jan 16, 2018 at 10:25 PM, Jeffy Chen wrote: > It's not safe to unbind rockchip IOMMU driver. Might be good to explain why it is not safe and actually add that it does not make any sense for such low level devices. Best regards, Tomasz