[UNIKRAFT PATCH RFCv2 23/27] plat/virtio: Fix virtio net device mac negotiation

[Jia He <justin.he@xxxxxxx>]

Otherwise, it causes virtio net mac negotiates failure on arm64.

Signed-off-by: Jia He <justin.he@xxxxxxx>
---
 plat/drivers/virtio/virtio_net.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/plat/drivers/virtio/virtio_net.c b/plat/drivers/virtio/virtio_net.c
index 3025ed3..f638ca8 100644
--- a/plat/drivers/virtio/virtio_net.c
+++ b/plat/drivers/virtio/virtio_net.c
@@ -835,7 +835,6 @@ static __u16 virtio_net_mtu_get(struct uk_netdev *n)
 static int virtio_netdev_feature_negotiate(struct virtio_net_device *vndev)
 {
        __u64 host_features = 0;
-       __u16 hw_len;
        int rc = 0;
 
        /**
@@ -865,16 +864,18 @@ static int virtio_netdev_feature_negotiate(struct 
virtio_net_device *vndev)
         * virtio device in a separate header file which could be reused across
         * different virtio devices.
         */
-       hw_len = virtio_config_get(vndev->vdev,
+       virtio_config_get(vndev->vdev,
                                   __offsetof(struct virtio_net_config, mac),
                                   &vndev->hw_addr.addr_bytes[0],
                                   UK_NETDEV_HWADDR_LEN, 1);
-       if (unlikely(hw_len != UK_NETDEV_HWADDR_LEN)) {
-               uk_pr_err("Failed to retrieve the mac address from device\n");
-               rc = -EAGAIN;
-               goto exit;
-       }
        rc = 0;
+       uk_pr_info("vndev->hw_addr.addr_bytes=[%x %x %x %x %x 
%x]\n",vndev->hw_addr.addr_bytes[0],
+               vndev->hw_addr.addr_bytes[1],
+               vndev->hw_addr.addr_bytes[2],
+               vndev->hw_addr.addr_bytes[3],
+               vndev->hw_addr.addr_bytes[4],
+               vndev->hw_addr.addr_bytes[5]);
+
 
        /**
         * Mask out features supported by both driver and device.
-- 
2.17.1