[PATCH/RFC] powerpc/pci: Don't try to allocate resources that will be reassigned

[Benjamin Herrenschmidt]

When we know we will reassign all resources, trying (and failing)
to allocate them initially is fairly pointless and leads to a lot
of scary messages in the kernel log

Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
---
 arch/powerpc/kernel/pci-common.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 0f7a60f..2a67b16 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1362,8 +1362,10 @@ void __init pcibios_resource_survey(void)
 	/* Allocate and assign resources */
 	list_for_each_entry(b, &pci_root_buses, node)
 		pcibios_allocate_bus_resources(b);
-	pcibios_allocate_resources(0);
-	pcibios_allocate_resources(1);
+	if (!pci_has_flag(PCI_REASSIGN_ALL_RSRC)) {
+		pcibios_allocate_resources(0);
+		pcibios_allocate_resources(1);
+	}
 
 	/* Before we start assigning unassigned resource, we try to reserve
 	 * the low IO area and the VGA memory area if they intersect the