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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>
Gary Hade 18 ani în urmă
părinte
comite
9ef2241b18
1 a modificat fișierele cu 3 adăugiri și 0 ștergeri
  1. 3 0
      drivers/pci/hotplug/acpiphp_glue.c

+ 3 - 0
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)))
 			(dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)))
 		return;
 		return;
 
 
+	if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST)
+		return;
+
 	pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
 	pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
 			bridge->hpp.t0->cache_line_size);
 			bridge->hpp.t0->cache_line_size);
 	pci_write_config_byte(dev, PCI_LATENCY_TIMER,
 	pci_write_config_byte(dev, PCI_LATENCY_TIMER,