From 9a1a70ae1545c99ed685431c2ab6c4a2c58625de Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 8 Jul 2016 16:37:18 +1000 Subject: [PATCH] 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 Signed-off-by: Michael Ellerman --- 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 c6ac4f01dd56..f93942b4b6a6 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -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 -- 2.20.1