From 4044af03a4e95642d8d1982800c079029c2b087c Mon Sep 17 00:00:00 2001
From: "Alexander V. Chernikov" <melifaro@FreeBSD.org>
Date: Mon, 19 Apr 2021 16:58:41 +0100
Subject: [PATCH] Fix vtnet TCP lro panic

Differential Revision: https://reviews.freebsd.org/D29900
Reviewed by:	hps, kp
---
 sys/dev/virtio/network/if_vtnet.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/dev/virtio/network/if_vtnet.c b/sys/dev/virtio/network/if_vtnet.c
index 3650d19fbe0e..e65914c5184f 100644
--- a/sys/dev/virtio/network/if_vtnet.c
+++ b/sys/dev/virtio/network/if_vtnet.c
@@ -2145,7 +2145,8 @@ vtnet_rxq_eof(struct vtnet_rxq *rxq)
 
 	if (deq > 0) {
 #if defined(INET) || defined(INET6)
-		tcp_lro_flush_all(&rxq->vtnrx_lro);
+		if (vtnet_software_lro(sc))
+			tcp_lro_flush_all(&rxq->vtnrx_lro);
 #endif
 		virtqueue_notify(vq);
 	}