PCI: hotplug: acpiphp: remove hot plug parameter write to PCI host bridge

acpiphp is writing hot plug parameters to the PCI host bridge
PCI config space.  This patch removes the incorrect operation.

Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Cc: <lcm@us.ibm.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 3cc5a82..72ec4a2 100644 (file)
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -1368,6 +1368,9 @@ static void program_hpp(struct pci_dev *dev, struct acpiphp_bridge *bridge)
                        (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)))
                return;
 
+       if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST)
+               return;
+
        pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
                        bridge->hpp.t0->cache_line_size);
        pci_write_config_byte(dev, PCI_LATENCY_TIMER,