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powerpc/pci: Don't try to allocate resources that will be reassigned 

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@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Benjamin Herrenschmidt 2016-07-08 16:37:18 +10:00 committed by Michael Ellerman
parent 08a45b320a
commit 9a1a70ae15
1 changed files with 4 additions and 2 deletions
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6
arch/powerpc/kernel/pci-common.c
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@ -1418,8 +1418,10 @@ 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