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yaml
---
r: 358404
b: refs/heads/master
c: fcbed0b
h: refs/heads/master
v: v3
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Yijing Wang authored and Bjorn Helgaas committed Jan 25, 2013
1 parent d810df7 commit 4db0e23
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Showing 2 changed files with 17 additions and 21 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: ab6380ef01983e977c147cb8bb040f57e4fe2d55
refs/heads/master: fcbed0bcb216b9f134e8614f46e00649a179e042
36 changes: 16 additions & 20 deletions trunk/drivers/pci/hotplug/shpchp_pci.c
Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@ int __ref shpchp_configure_device(struct slot *p_slot)
struct controller *ctrl = p_slot->ctrl;
struct pci_dev *bridge = ctrl->pci_dev;
struct pci_bus *parent = bridge->subordinate;
int num, fn;
int num;

dev = pci_get_slot(parent, PCI_DEVFN(p_slot->device, 0));
if (dev) {
Expand All @@ -57,24 +57,20 @@ int __ref shpchp_configure_device(struct slot *p_slot)
return -ENODEV;
}

for (fn = 0; fn < 8; fn++) {
dev = pci_get_slot(parent, PCI_DEVFN(p_slot->device, fn));
if (!dev)
list_for_each_entry(dev, &parent->devices, bus_list) {
if (PCI_SLOT(dev->devfn) != p_slot->device)
continue;
if ((dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) ||
(dev->hdr_type == PCI_HEADER_TYPE_CARDBUS))
pci_hp_add_bridge(dev);
pci_dev_put(dev);
}

pci_assign_unassigned_bridge_resources(bridge);

for (fn = 0; fn < 8; fn++) {
dev = pci_get_slot(parent, PCI_DEVFN(p_slot->device, fn));
if (!dev)
list_for_each_entry(dev, &parent->devices, bus_list) {
if (PCI_SLOT(dev->devfn) != p_slot->device)
continue;
pci_configure_slot(dev);
pci_dev_put(dev);
}

pci_bus_add_devices(parent);
Expand All @@ -85,32 +81,32 @@ int __ref shpchp_configure_device(struct slot *p_slot)
int shpchp_unconfigure_device(struct slot *p_slot)
{
int rc = 0;
int j;
u8 bctl = 0;
struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate;
struct pci_dev *dev, *temp;
struct controller *ctrl = p_slot->ctrl;

ctrl_dbg(ctrl, "%s: domain:bus:dev = %04x:%02x:%02x\n",
__func__, pci_domain_nr(parent), p_slot->bus, p_slot->device);

for (j = 0; j < 8 ; j++) {
struct pci_dev *temp = pci_get_slot(parent,
(p_slot->device << 3) | j);
if (!temp)
list_for_each_entry_safe(dev, temp, &parent->devices, bus_list) {
if (PCI_SLOT(dev->devfn) != p_slot->device)
continue;
if (temp->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
pci_read_config_byte(temp, PCI_BRIDGE_CONTROL, &bctl);

pci_dev_get(dev);
if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
pci_read_config_byte(dev, PCI_BRIDGE_CONTROL, &bctl);
if (bctl & PCI_BRIDGE_CTL_VGA) {
ctrl_err(ctrl,
"Cannot remove display device %s\n",
pci_name(temp));
pci_dev_put(temp);
pci_name(dev));
pci_dev_put(dev);
rc = -EINVAL;
break;
}
}
pci_stop_and_remove_bus_device(temp);
pci_dev_put(temp);
pci_stop_and_remove_bus_device(dev);
pci_dev_put(dev);
}
return rc;
}
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