[PATCH RFC v4 03/21] PCI: Enable bridge's I/O and MEM access for hotplugged devices

[Sergey Miroshnichenko]

After updating the bridge window resources, the PCI_COMMAND_IO and
PCI_COMMAND_MEMORY bits of the bridge must be addressed as well.

Signed-off-by: Sergey Miroshnichenko <s.miroshniche...@yadro.com>
---
 drivers/pci/pci.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 895201d4c9e6..69898fe5255e 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1622,6 +1622,14 @@ static void pci_enable_bridge(struct pci_dev *dev)
                pci_enable_bridge(bridge);
 
        if (pci_is_enabled(dev)) {
+               int i, bars = 0;
+
+               for (i = PCI_BRIDGE_RESOURCES; i < DEVICE_COUNT_RESOURCE; i++) {
+                       if (dev->resource[i].flags & (IORESOURCE_MEM | 
IORESOURCE_IO))
+                               bars |= (1 << i);
+               }
+               do_pci_enable_device(dev, bars);
+
                if (!dev->is_busmaster)
                        pci_set_master(dev);
                mutex_unlock(&dev->enable_mutex);
-- 
2.20.1