diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 91a41f362a58..ac5fa86b0889 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -2304,8 +2304,8 @@ xhci_alloc_interrupter(struct xhci_hcd *xhci, unsigned int intr_num, gfp_t flags
 	writel(erst_size, &ir->ir_set->erst_size);
 
 	erst_base = xhci_read_64(xhci, &ir->ir_set->erst_base);
-	erst_base &= ERST_PTR_MASK;
-	erst_base |= (ir->erst.erst_dma_addr & (u64) ~ERST_PTR_MASK);
+	erst_base &= ERST_BASE_RSVDP;
+	erst_base |= ir->erst.erst_dma_addr & ~ERST_BASE_RSVDP;
 	xhci_write_64(xhci, erst_base, &ir->ir_set->erst_base);
 
 	/* Set the event ring dequeue address of this interrupter */
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index c46c7c097e8c..368098496d20 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -514,7 +514,7 @@ struct xhci_intr_reg {
 #define	ERST_SIZE_MASK		(0xffff << 16)
 
 /* erst_base bitmasks */
-#define ERST_BASE_RSVDP		(0x3f)
+#define ERST_BASE_RSVDP		(GENMASK_ULL(5, 0))
 
 /* erst_dequeue bitmasks */
 /* Dequeue ERST Segment Index (DESI) - Segment number (or alias)