Debug len more than free_entries

Author: Cuda-Chen

virtio-snd.c

@@ -741,7 +741,7 @@ static void __virtio_snd_frame_enqueue(void *payload,
 
     /* Move prod_head. */
     if (n > free_entries)
-        fprintf(stderr, "payload length larger than free_entries\n");
+        fprintf(stderr, "payload length %" PRIu32 " larger than free_entries %" PRIu32 "\n", n, free_entries);
     prod_next = prod_head + n;
     props->ring.prod.head = prod_next;
 
@@ -835,8 +835,9 @@ static int virtio_snd_tx_desc_handler(virtio_snd_state_t *vsnd,
         /* TODO: ring buffer copy here */
         void *payload = (void *) (base + addr);
         __virtio_snd_frame_enqueue(payload, len, stream_id);
-        fprintf(stderr, "prod tail: %" PRIu32 "\n",
-                vsnd_props[stream_id].ring.prod.tail); /* XXX: test only */
+        /* XXX: test only */
+        /*fprintf(stderr, "prod tail: %" PRIu32 "\n",
+                vsnd_props[stream_id].ring.prod.tail);*/
         ret_len += len;
 
     early_continue: