From ac81860ea073daed50246af54db706c6e491f240 Mon Sep 17 00:00:00 2001 From: Praveen Kalamegham Date: Wed, 19 May 2010 17:03:12 -0500 Subject: [PATCH] PCI: hotplug: pciehp: Removed check for hotplug of display devices Removed check to prevent hotplug of display devices within pciehp. Originally this was thought to have been required within the PCI Hotplug specification for some legacy devices. However there is no such requirement in the most recent revision. The check prevents hotplug of not only display devices but also computational GPUs which require serviceability. Signed-off-by: Praveen Kalamegham Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/pciehp_pci.c | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-) diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c index 0a16444c14c9..2fce726758d2 100644 --- a/drivers/pci/hotplug/pciehp_pci.c +++ b/drivers/pci/hotplug/pciehp_pci.c @@ -84,12 +84,6 @@ int pciehp_configure_device(struct slot *p_slot) dev = pci_get_slot(parent, PCI_DEVFN(0, fn)); if (!dev) continue; - if ((dev->class >> 16) == PCI_BASE_CLASS_DISPLAY) { - ctrl_err(ctrl, "Cannot hot-add display device %s\n", - pci_name(dev)); - pci_dev_put(dev); - continue; - } if ((dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) || (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)) { pciehp_add_bridge(dev); @@ -133,15 +127,9 @@ int pciehp_unconfigure_device(struct slot *p_slot) presence = 0; for (j = 0; j < 8; j++) { - struct pci_dev* temp = pci_get_slot(parent, PCI_DEVFN(0, j)); + struct pci_dev *temp = pci_get_slot(parent, PCI_DEVFN(0, j)); if (!temp) continue; - if ((temp->class >> 16) == PCI_BASE_CLASS_DISPLAY) { - ctrl_err(ctrl, "Cannot remove display device %s\n", - pci_name(temp)); - pci_dev_put(temp); - continue; - } if (temp->hdr_type == PCI_HEADER_TYPE_BRIDGE && presence) { pci_read_config_byte(temp, PCI_BRIDGE_CONTROL, &bctl); if (bctl & PCI_BRIDGE_CTL_VGA) { @@ -149,7 +137,8 @@ int pciehp_unconfigure_device(struct slot *p_slot) "Cannot remove display device %s\n", pci_name(temp)); pci_dev_put(temp); - continue; + rc = EINVAL; + break; } } pci_remove_bus_device(temp); -- 2.20.1