virtio: update the comments for transport features

Tiwei Bie · mstsirkin · commit 2eb98105f8c7 · 2018-06-12T04:59:29.000+03:00
The existing comments for transport features are outdated.
So update them to address the latest changes in the spec.

Suggested-by: Michael S. Tsirkin &lt;mst@redhat.com&gt;
Signed-off-by: Tiwei Bie &lt;tiwei.bie@intel.com&gt;
Reviewed-by: Cornelia Huck &lt;cohuck@redhat.com&gt;
Signed-off-by: Michael S. Tsirkin &lt;mst@redhat.com&gt;
Reviewed-by: Stefan Hajnoczi &lt;stefanha@redhat.com&gt;
diff --git a/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.h
@@ -45,9 +45,12 @@
 /* We've given up on this device. */
 #define VIRTIO_CONFIG_S_FAILED		0x80
 
-/* Some virtio feature bits (currently bits 28 through 32) are reserved for the
- * transport being used (eg. virtio_ring), the rest are per-device feature
- * bits. */
+/*
+ * Virtio feature bits VIRTIO_TRANSPORT_F_START through
+ * VIRTIO_TRANSPORT_F_END are reserved for the transport
+ * being used (e.g. virtio_ring, virtio_pci etc.), the
+ * rest are per-device feature bits.
+ */
 #define VIRTIO_TRANSPORT_F_START	28
 #define VIRTIO_TRANSPORT_F_END		38
 
