diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index d20aabc26273c4c2ceda98338efb6e439aebb9e5..3a10e678c7f474f631caf7c195bd7889b6f71516 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -670,7 +670,7 @@ static inline int brcm_pcie_get_rc_bar2_size_and_offset(struct brcm_pcie *pcie,
 	 *   outbound memory @ 3GB). So instead it will  start at the 1x
 	 *   multiple of its size
 	 */
-	if (!*rc_bar2_size || *rc_bar2_offset % *rc_bar2_size ||
+	if (!*rc_bar2_size || (*rc_bar2_offset & (*rc_bar2_size - 1)) ||
 	    (*rc_bar2_offset < SZ_4G && *rc_bar2_offset > SZ_2G)) {
 		dev_err(dev, "Invalid rc_bar2_offset/size: size 0x%llx, off 0x%llx\n",
 			*rc_bar2_size, *rc_bar2_offset);