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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 10192C4332F for ; Mon, 28 Feb 2022 22:06:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231307AbiB1WHX (ORCPT ); Mon, 28 Feb 2022 17:07:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231329AbiB1WHS (ORCPT ); Mon, 28 Feb 2022 17:07:18 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id EFE1CC4E0C for ; Mon, 28 Feb 2022 14:06:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1646085998; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=d94j7lxxX5y02+A6WG5OxYm+EuL2bPwYE+feweTMi6I=; b=J0ohMJ9U4ZN2kRr3Weze39lKaA2qodgnMc2U8kKg2jj2hagwo7Z89eTVrnJTmbp9kN8iQp h6WAvdENA2NstwlRqY7ftZc5uM+XFeiHJEt+qmcrDz8x3bA8qd0uSU9A6L6rBA9ZutRL1g jHofp/lyat83++zOLirrqDWEJrhor9o= Received: from mail-ot1-f70.google.com (mail-ot1-f70.google.com [209.85.210.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-607-GqBc5b2POfSxUFbczmrbGw-1; Mon, 28 Feb 2022 17:06:36 -0500 X-MC-Unique: GqBc5b2POfSxUFbczmrbGw-1 Received: by mail-ot1-f70.google.com with SMTP id q2-20020a9d5782000000b005ad0c39a8b5so9959180oth.2 for ; Mon, 28 Feb 2022 14:06:36 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=d94j7lxxX5y02+A6WG5OxYm+EuL2bPwYE+feweTMi6I=; b=Yd7hxYZrD5HZUbKCOJ0aKap9vmNnfY0RbIoaWuaBXQtF4C5F7KaHzYaXOGibF7FV0e 0iFHgqbGePjctJg35YLonoTwXZkJWa6Zlvc3qVgJMV5tmJo2oQ9giGHXjvSE3QyDpH48 pCjLlFrYB/nKZZlW+vdhAxddK5YB4J8xiFjNW49TWJzH17nI+IV1kXzkq3tC1tS3zg8/ LQ1foX+X9Q0mhLxhaeZufG9016kCslZPKDF+lU6IxJa+36DTJMdL2Uq+eZsBz+DX9RYJ NE4gBeIwvkfafm1c/N5FCFrhMJVDggDdgSET+2QjeNXkkylhdXtjbVgtjuXYCm7/DzyF zdXQ== X-Gm-Message-State: AOAM531VbmAVJ2zgA0UfoR3RdiPNMgVpBeOkUc0uN1RUYNxIs7vH0MEP sV1etl+8hSJlqWAHNbMOSVoCZQJEl/LgFGJ64V6qXyQXSe5SezaE1OZHv3ltSXdvSpjR5SLtAzw tU4lbSMpPVFUPzDA8jj1y X-Received: by 2002:a05:6808:1586:b0:2d5:1211:5785 with SMTP id t6-20020a056808158600b002d512115785mr10690613oiw.0.1646085995965; Mon, 28 Feb 2022 14:06:35 -0800 (PST) X-Google-Smtp-Source: ABdhPJwLGQUBEm26I4XhzS9O0hC1lMHUwWYT/sXCYb5vTAfKM0mj7adVygonLblatFgJDlUF3+gebg== X-Received: by 2002:a05:6808:1586:b0:2d5:1211:5785 with SMTP id t6-20020a056808158600b002d512115785mr10690580oiw.0.1646085995791; Mon, 28 Feb 2022 14:06:35 -0800 (PST) Received: from redhat.com ([38.15.36.239]) by smtp.gmail.com with ESMTPSA id m21-20020a056820051500b0031d0841b87esm5371712ooj.34.2022.02.28.14.06.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Feb 2022 14:06:35 -0800 (PST) Date: Mon, 28 Feb 2022 15:06:33 -0700 From: Alex Williamson To: Lu Baolu Cc: Greg Kroah-Hartman , Joerg Roedel , Bjorn Helgaas , Jason Gunthorpe , Christoph Hellwig , Kevin Tian , Ashok Raj , Will Deacon , Robin Murphy , Dan Williams , rafael@kernel.org, Diana Craciun , Cornelia Huck , Eric Auger , Liu Yi L , Jacob jun Pan , Chaitanya Kulkarni , Stuart Yoder , Laurentiu Tudor , Thierry Reding , David Airlie , Daniel Vetter , Jonathan Hunter , Li Yang , Dmitry Osipenko , iommu@lists.linux-foundation.org, linux-pci@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v7 10/11] vfio: Remove iommu group notifier Message-ID: <20220228150633.3438200c.alex.williamson@redhat.com> In-Reply-To: <20220228005056.599595-11-baolu.lu@linux.intel.com> References: <20220228005056.599595-1-baolu.lu@linux.intel.com> <20220228005056.599595-11-baolu.lu@linux.intel.com> X-Mailer: Claws Mail 3.18.0 (GTK+ 2.24.33; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Mon, 28 Feb 2022 08:50:55 +0800 Lu Baolu wrote: > The iommu core and driver core have been enhanced to avoid unsafe driver > binding to a live group after iommu_group_set_dma_owner(PRIVATE_USER) > has been called. There's no need to register iommu group notifier. This > removes the iommu group notifer which contains BUG_ON() and WARN(). > > Signed-off-by: Lu Baolu > Reviewed-by: Jason Gunthorpe > --- > drivers/vfio/vfio.c | 147 -------------------------------------------- > 1 file changed, 147 deletions(-) Acked-by: Alex Williamson