[dpdk-stable] patch 'vhost: fix checking of device features' has been queued to LTS release 16.11.3

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to LTS release 16.11.3

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 07/19/17. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From ba3547df77dd5b7affd65c23a5712f087fb0d6e8 Mon Sep 17 00:00:00 2001
From: Ivan Dyukov <i.dyukov at samsung.com>
Date: Wed, 28 Jun 2017 15:40:31 +0300
Subject: [PATCH] vhost: fix checking of device features

[ upstream commit c665d9a231945181af0a6e6fbeae7f56657f964a ]

To compare enabled features in current device we must use bit
mask instead of bit position.

Fixes: c843af3aa13e ("vhost: access header only if offloading is supported")

Signed-off-by: Ivan Dyukov <i.dyukov at samsung.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>
Acked-by: Yuanhan Liu <yuanhan.liu at linux.intel.com>
---
 lib/librte_vhost/virtio_net.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
index 7d5b04c..ec9f1e5 100644
--- a/lib/librte_vhost/virtio_net.c
+++ b/lib/librte_vhost/virtio_net.c
@@ -644,9 +644,11 @@ static inline bool
 virtio_net_with_host_offload(struct virtio_net *dev)
 {
 	if (dev->features &
-			(VIRTIO_NET_F_CSUM | VIRTIO_NET_F_HOST_ECN |
-			 VIRTIO_NET_F_HOST_TSO4 | VIRTIO_NET_F_HOST_TSO6 |
-			 VIRTIO_NET_F_HOST_UFO))
+			((1ULL << VIRTIO_NET_F_CSUM) |
+			 (1ULL << VIRTIO_NET_F_HOST_ECN) |
+			 (1ULL << VIRTIO_NET_F_HOST_TSO4) |
+			 (1ULL << VIRTIO_NET_F_HOST_TSO6) |
+			 (1ULL << VIRTIO_NET_F_HOST_UFO)))
 		return true;
 
 	return false;
-- 
2.7.4