vhost: correct misleading printing information

Guest moved avail idx not used idx when we need to print log if
'(vq->avail_idx - last_avail_idx) > vq->num', so fix it.

Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
Message-Id: <20240311082109.46773-1-xianting.tian@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 32686c79c41d654cd6e4ccc24c41b91756e1dca0..8995730ce0bfc82d193bd7128e51817fba43de76 100644 (file)
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -2515,7 +2515,7 @@ int vhost_get_vq_desc(struct vhost_virtqueue *vq,
                vq->avail_idx = vhost16_to_cpu(vq, avail_idx);
 
                if (unlikely((u16)(vq->avail_idx - last_avail_idx) > vq->num)) {
-                       vq_err(vq, "Guest moved used index from %u to %u",
+                       vq_err(vq, "Guest moved avail index from %u to %u",
                                last_avail_idx, vq->avail_idx);
                        return -EFAULT;
                }