linux-kernel - [PATCH v8 35/50] vhost/net: larger header for virtio 1.0

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Message-ID: <1417449619-24896-36-git-send-email-mst@redhat.com>
Date:	Mon, 1 Dec 2014 18:05:39 +0200
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	David Miller <davem@...emloft.net>, cornelia.huck@...ibm.com,
	rusty@....ibm.com, nab@...ux-iscsi.org, pbonzini@...hat.com,
	thuth@...ux.vnet.ibm.com, dahi@...ux.vnet.ibm.com,
	Jason Wang <jasowang@...hat.com>, kvm@...r.kernel.org,
	virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: [PATCH v8 35/50] vhost/net: larger header for virtio 1.0

Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
Reviewed-by: Jason Wang <jasowang@...hat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@...ibm.com>
---
 drivers/vhost/net.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index c218188..8ff4a6d 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -1030,7 +1030,8 @@ static int vhost_net_set_features(struct vhost_net *n, u64 features)
 	size_t vhost_hlen, sock_hlen, hdr_len;
 	int i;
 
-	hdr_len = (features & (1 << VIRTIO_NET_F_MRG_RXBUF)) ?
+	hdr_len = (features & ((1ULL << VIRTIO_NET_F_MRG_RXBUF) |
+			       (1ULL << VIRTIO_F_VERSION_1))) ?
 			sizeof(struct virtio_net_hdr_mrg_rxbuf) :
 			sizeof(struct virtio_net_hdr);
 	if (features & (1 << VHOST_NET_F_VIRTIO_NET_HDR)) {
-- 
MST

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