From: David Ahern <dsa@xxxxxxxxxxxxxxxxxxx>
This patch has been added to the stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit e37791ec1ad785b59022ae211f63a16189bacebf ]
When the mpls_router module is unloaded, mpls routes are deleted but
notifications are not sent to userspace leaving userspace caches
out of sync. Add the call to mpls_notify_route in mpls_net_exit as
routes are freed.
Fixes: 0189197f44160 ("mpls: Basic routing support")
Signed-off-by: David Ahern <dsa@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
net/mpls/af_mpls.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index 1f93a5978f2a..398375098efb 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -1098,6 +1098,7 @@ static void mpls_net_exit(struct net *net)
for (index = 0; index < platform_labels; index++) {
struct mpls_route *rt = rtnl_dereference(platform_label[index]);
RCU_INIT_POINTER(platform_label[index], NULL);
+ mpls_notify_route(net, index, rt, NULL, NULL);
mpls_rt_free(rt);
}
rtnl_unlock();
--
2.11.0