From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752630AbbBXUMp (ORCPT ); Tue, 24 Feb 2015 15:12:45 -0500 Received: from mx1.redhat.com ([209.132.183.28]:59078 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751436AbbBXUMn (ORCPT ); Tue, 24 Feb 2015 15:12:43 -0500 Subject: [PATCH 0/2] PCI: pci_unignore_hotplug() From: Alex Williamson To: bhelgaas@google.com, linux-pci@vger.kernel.org, airlied@linux.ie, alexander.deucher@amd.com, dri-devel@lists.freedesktop.org Cc: alex.williamson@redhat.com, linux-kernel@vger.kernel.org Date: Tue, 24 Feb 2015 13:12:27 -0700 Message-ID: <20150224200603.14443.68971.stgit@gimli.home> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I'd kinda like to use pci_ignore_hotplug() for devices in use by a user via vfio-pci, but the interface seems only partially implemented since we can only set ignore_hotplug and not clear it. This adds the capability to clear the flag and applies it as seems to be appropriate to the existing users. I don't have a system with power control for a radeon or nouveau device, so I'd certainly appreciate testing. It seems though that once the device is in D0, we've passed the critical point where the device could be accidentally unplugged. Thanks, Alex --- Alex Williamson (2): pci: Add reciprocal function for pci_ignore_hotplug() nouveau/radeon: Un-ignore hotplug on resume drivers/gpu/drm/nouveau/nouveau_drm.c | 1 + drivers/gpu/drm/radeon/radeon_drv.c | 1 + include/linux/pci.h | 5 +++++ 3 files changed, 7 insertions(+)