It's an fd; so define it as "int", which could also save the unncessary
(int) case.

Signed-off-by: Yuanhan Liu <yuanhan.liu at linux.intel.com>
---
 lib/librte_vhost/rte_virtio_net.h | 2 +-
 lib/librte_vhost/virtio-net.c     | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/librte_vhost/rte_virtio_net.h 
b/lib/librte_vhost/rte_virtio_net.h
index 600b20b..4d25f79 100644
--- a/lib/librte_vhost/rte_virtio_net.h
+++ b/lib/librte_vhost/rte_virtio_net.h
@@ -85,7 +85,7 @@ struct vhost_virtqueue {
        struct vring_avail      *avail;                 /**< Virtqueue 
available ring. */
        struct vring_used       *used;                  /**< Virtqueue used 
ring. */
        uint32_t                size;                   /**< Size of descriptor 
ring. */
-       uint32_t                backend;                /**< Backend value to 
determine if device should started/stopped. */
+       int                     backend;                /**< Backend value to 
determine if device should started/stopped. */
        uint16_t                vhost_hlen;             /**< Vhost header 
length (varies depending on RX merge buffers. */
        volatile uint16_t       last_used_idx;          /**< Last index used on 
the available ring */
        volatile uint16_t       last_used_idx_res;      /**< Used for multiple 
devices reserving buffers. */
diff --git a/lib/librte_vhost/virtio-net.c b/lib/librte_vhost/virtio-net.c
index f4695af..1a6259b 100644
--- a/lib/librte_vhost/virtio-net.c
+++ b/lib/librte_vhost/virtio-net.c
@@ -717,8 +717,8 @@ vhost_set_backend(struct vhost_device_ctx ctx, struct 
vhost_vring_file *file)
         * we add the device.
         */
        if (!(dev->flags & VIRTIO_DEV_RUNNING)) {
-               if (((int)dev->virtqueue[VIRTIO_TXQ]->backend != 
VIRTIO_DEV_STOPPED) &&
-                       ((int)dev->virtqueue[VIRTIO_RXQ]->backend != 
VIRTIO_DEV_STOPPED)) {
+               if (dev->virtqueue[VIRTIO_TXQ]->backend != VIRTIO_DEV_STOPPED &&
+                   dev->virtqueue[VIRTIO_RXQ]->backend != VIRTIO_DEV_STOPPED) {
                        return notify_ops->new_device(dev);
                }
        /* Otherwise we remove it. */
-- 
1.9.0

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