net/virtio: check protocol feature in user backend

[dpdk.git] / drivers / net / virtio / virtio_user / vhost_user.c

diff --git a/drivers/net/virtio/virtio_user/vhost_user.c b/drivers/net/virtio/virtio_user/vhost_user.c
index 337e511..ef290c3 100644 (file)
--- a/drivers/net/virtio/virtio_user/vhost_user.c
+++ b/drivers/net/virtio/virtio_user/vhost_user.c
@@ -277,6 +277,11 @@ vhost_user_sock(struct virtio_user_dev *dev,
        msg.size = 0;
 
        switch (req) {
+       case VHOST_USER_GET_STATUS:
+               if (!(dev->protocol_features &
+                               (1ULL << VHOST_USER_PROTOCOL_F_STATUS)))
+                       return 0;
+               /* Fallthrough */
        case VHOST_USER_GET_FEATURES:
        case VHOST_USER_GET_PROTOCOL_FEATURES:
                need_reply = 1;
@@ -373,6 +378,7 @@ vhost_user_sock(struct virtio_user_dev *dev,
 
                switch (req) {
                case VHOST_USER_GET_FEATURES:
+               case VHOST_USER_GET_STATUS:
                case VHOST_USER_GET_PROTOCOL_FEATURES:
                        if (msg.size != sizeof(m.payload.u64)) {
                                PMD_DRV_LOG(ERR, "Received bad msg size");