[PATCH 14/14] powerpc/pci: Don't try to allocate resources that will be reassigned
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2016-07-08 06:37:55
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
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> --- 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 d1f91e1..fb32db4 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c@@ -1370,8 +1370,10 @@ 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
--
2.7.4