From 97441fab87c9c816963ac3f220185f6526e194ed Mon Sep 17 00:00:00 2001
From: Mark Johnston <markj@FreeBSD.org>
Date: Fri, 23 Oct 2020 14:15:58 +0000
Subject: [PATCH] ntb: Fix an assertion to permit >= 32 doorbells

MFC after:	1 week
Sponsored by:	NetApp, Inc.
Sponsored by:	Klara, Inc.
---
 sys/dev/ntb/ntb_transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/dev/ntb/ntb_transport.c b/sys/dev/ntb/ntb_transport.c
index e6e630229a3..d6bccfb0f08 100644
--- a/sys/dev/ntb/ntb_transport.c
+++ b/sys/dev/ntb/ntb_transport.c
@@ -357,7 +357,7 @@ ntb_transport_attach(device_t dev)
 	spad_count = ntb_spad_count(dev);
 	db_bitmap = ntb_db_valid_mask(dev);
 	db_count = flsll(db_bitmap);
-	KASSERT(db_bitmap == (1 << db_count) - 1,
+	KASSERT(db_bitmap == ((uint64_t)1 << db_count) - 1,
 	    ("Doorbells are not sequential (%jx).\n", db_bitmap));
 
 	if (nt->mw_count == 0) {