From: Xin Long <lucien.xin@gmail.com>
Date: Fri, 9 Dec 2022 15:21:39 +0000 (-0500)
Subject: net: team: use IFF_NO_ADDRCONF flag to prevent ipv6 addrconf
X-Git-Tag: v6.6.17~5932^2~9^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0aa64df30b382fc71d4fb1827d528e0eb3eff854;p=platform%2Fkernel%2Flinux-rpi.git

net: team: use IFF_NO_ADDRCONF flag to prevent ipv6 addrconf

This patch is to use IFF_NO_ADDRCONF flag to prevent ipv6 addrconf
for Team port. This flag will be set in team_port_enter(), which
is called before dev_open(), and cleared in team_port_leave(),
called after dev_close() and the err path in team_port_add().

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index d10606f..fcd43d6 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1044,6 +1044,7 @@ static int team_port_enter(struct team *team, struct team_port *port)
 			goto err_port_enter;
 		}
 	}
+	port->dev->priv_flags |= IFF_NO_ADDRCONF;
 
 	return 0;
 
@@ -1057,6 +1058,7 @@ static void team_port_leave(struct team *team, struct team_port *port)
 {
 	if (team->ops.port_leave)
 		team->ops.port_leave(team, port);
+	port->dev->priv_flags &= ~IFF_NO_ADDRCONF;
 	dev_put(team->dev);
 }