[PATCH] PCI: dwc: Warn only for non-prefetchable memory resource size >4GB

[Vidya Sagar]

commit 9e73fa02aa009 ("PCI: dwc: Warn if MEM resource size exceeds max for
32-bits") enables warning for MEM resources of size >4GB but prefetchable
 memory resources also come under this category where sizes can go beyond
4GB. Avoid logging a warning for prefetchable memory resources.

Signed-off-by: Vidya Sagar <vidyas@xxxxxxxxxx>
---
 drivers/pci/controller/dwc/pcie-designware-host.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 42fbfe2a1b8f..a29396529ea4 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -366,7 +366,8 @@ int dw_pcie_host_init(struct pcie_port *pp)
 			pp->mem = win->res;
 			pp->mem->name = "MEM";
 			mem_size = resource_size(pp->mem);
-			if (upper_32_bits(mem_size))
+			if (upper_32_bits(mem_size) &&
+			    !(win->res->flags & IORESOURCE_PREFETCH))
 				dev_warn(dev, "MEM resource size exceeds max for 32 bits\n");
 			pp->mem_size = mem_size;
 			pp->mem_bus_addr = pp->mem->start - win->offset;
-- 
2.17.1