diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 3b690c3512f3..203630065839 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -270,10 +270,10 @@ static int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 		if (!sz64)
 			goto fail;
 
-		if ((BITS_PER_LONG < 64) && (sz64 > 0x100000000ULL)) {
+		if ((sizeof(resource_size_t) < 8) && (sz64 > 0x100000000ULL)) {
 			dev_err(&dev->dev, "can't handle 64-bit BAR\n");
 			goto fail;
-		} else if ((BITS_PER_LONG < 64) && l) {
+		} else if ((sizeof(resource_size_t) < 8) && l) {
 			/* Address above 32-bit boundary; disable the BAR */
 			pci_write_config_dword(dev, pos, 0);
 			pci_write_config_dword(dev, pos + 4, 0);