Patchwork [-v2] pci: clear bridge resource size if BIOS assign bad one

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Submitter Yinghai
Date June 3, 2010, 8:43 p.m.
Message ID <4C0813D7.7080900@oracle.com>
Download mbox | patch
Permalink /patch/104169/
State New, archived
Headers show

Comments

Patch

Index: linux-2.6/arch/x86/pci/i386.c
===================================================================
--- linux-2.6.orig/arch/x86/pci/i386.c
+++ linux-2.6/arch/x86/pci/i386.c
@@ -136,6 +136,7 @@  static void __init pcibios_allocate_bus_
 					 * child resource allocations in this
 					 * range.
 					 */
+					r->start = r->end = 0;
 					r->flags = 0;
 				}
 			}
Index: linux-2.6/arch/microblaze/pci/pci-common.c
===================================================================
--- linux-2.6.orig/arch/microblaze/pci/pci-common.c
+++ linux-2.6/arch/microblaze/pci/pci-common.c
@@ -1277,6 +1277,7 @@  void pcibios_allocate_bus_resources(stru
 		printk(KERN_WARNING "PCI: Cannot allocate resource region "
 		       "%d of PCI bridge %d, will remap\n", i, bus->number);
 clear_resource:
+		res->start = res->end = 0;
 		res->flags = 0;
 	}
 
Index: linux-2.6/arch/mn10300/unit-asb2305/pci-asb2305.c
===================================================================
--- linux-2.6.orig/arch/mn10300/unit-asb2305/pci-asb2305.c
+++ linux-2.6/arch/mn10300/unit-asb2305/pci-asb2305.c
@@ -117,6 +117,7 @@  static void __init pcibios_allocate_bus_
 					 * Invalidate the resource to prevent
 					 * child resource allocations in this
 					 * range. */
+					r->start = r->end = 0;
 					r->flags = 0;
 				}
 			}
Index: linux-2.6/arch/powerpc/kernel/pci-common.c
===================================================================
--- linux-2.6.orig/arch/powerpc/kernel/pci-common.c
+++ linux-2.6/arch/powerpc/kernel/pci-common.c
@@ -1309,6 +1309,7 @@  void pcibios_allocate_bus_resources(stru
 		printk(KERN_WARNING "PCI: Cannot allocate resource region "
 		       "%d of PCI bridge %d, will remap\n", i, bus->number);
 clear_resource:
+		res->start = res->end = 0;
 		res->flags = 0;
 	}