From: Sven Eckelmann Date: Sun, 27 Feb 2022 22:40:40 +0000 (+0100) Subject: batman-adv: Demote batadv-on-batadv skip error message X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=6ee3c393eeb7d16a3c228c4fa23913b76c7e7df3;p=uclinux-h8%2Flinux.git batman-adv: Demote batadv-on-batadv skip error message The error message "Cannot find parent device" was shown for users of macvtap (on batadv devices) whenever the macvtap was moved to a different netns. This happens because macvtap doesn't provide an implementation for rtnl_link_ops->get_link_net. The situation for which this message is printed is actually not an error but just a warning that the optional sanity check was skipped. So demote the message from error to warning and adjust the text to better explain what happened. Reported-by: Leonardo Mörlein Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich --- diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c index 59d19097a54c..b25afc7ff59c 100644 --- a/net/batman-adv/hard-interface.c +++ b/net/batman-adv/hard-interface.c @@ -165,9 +165,9 @@ static bool batadv_is_on_batman_iface(const struct net_device *net_dev) /* recurse over the parent device */ parent_dev = __dev_get_by_index((struct net *)parent_net, dev_get_iflink(net_dev)); - /* if we got a NULL parent_dev there is something broken.. */ if (!parent_dev) { - pr_err("Cannot find parent device\n"); + pr_warn("Cannot find parent device. Skipping batadv-on-batadv check for %s\n", + net_dev->name); return false; }