[OS-BUILD PATCH 1/2] Revert "PCI: of: Refactor the check for non-prefetchable 32-bit window"

[Herton R. Krzesinski (via Email Bridge)]

From: Herton R. Krzesinski <herton(a)redhat.com&gt;

Revert "PCI: of: Refactor the check for non-prefetchable 32-bit window"

This reverts commit 7526d4b295786a611864afff7913a79a49a2cb71.

It was dropped from final upsream series merged:
https://lore.kernel.org/linux-pci/20210614230457.752811-1-punitagrawal@gm...

Signed-off-by: Herton R. Krzesinski <herton(a)redhat.com&gt;

diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index blahblah..blahblah 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -573,6 +573,12 @@ static int pci_parse_request_of_pci_ranges(struct device *dev,
 			break;
 		case IORESOURCE_MEM:
 			res_valid |= !(res->flags & IORESOURCE_PREFETCH);
+
+			if (!(res->flags & IORESOURCE_PREFETCH))
+				if (!(res->flags & IORESOURCE_MEM_64) &&
+				    upper_32_bits(resource_size(res)))
+					dev_warn(dev, "Memory resource size exceeds max for 32 bits\n");
+
 			break;
 		}
 	}

--
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1187