X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fnetdev-provider.h;h=170136d4d643a9f770ec67a3e8bbdd877bbba025;hb=cf3fad8a1b633c7c4231edda04b0e56e67df0d91;hp=d4ff6200fe733d441865cfd87282beb84861994a;hpb=2b9d65898426b2e15d05dc6a9ffdbcb92933398f;p=openvswitch

diff --git a/lib/netdev-provider.h b/lib/netdev-provider.h
index d4ff6200..170136d4 100644
--- a/lib/netdev-provider.h
+++ b/lib/netdev-provider.h
@@ -259,7 +259,11 @@ struct netdev_class {
     int (*get_ifindex)(const struct netdev *netdev);
 
     /* Sets 'carrier' to true if carrier is active (link light is on) on
-     * 'netdev'. */
+     * 'netdev'.
+     *
+     * May be null if device does not provide carrier status (will be always
+     * up as long as device is up).
+     */
     int (*get_carrier)(const struct netdev *netdev, bool *carrier);
 
     /* Retrieves current device stats for 'netdev' into 'stats'.