net sched: update vlan action for batched events operations

[ Upstream commit b35475c5491a14c8ce7a5046ef7bcda8a860581a ]

Add get_fill_size() routine used to calculate the action size
when building a batch of events.

Fixes: c7e2b9689 ("sched: introduce vlan action")
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/sched/act_vlan.c b/net/sched/act_vlan.c
index 033d273..20a7d4d 100644 (file)
--- a/net/sched/act_vlan.c
+++ b/net/sched/act_vlan.c
@@ -296,6 +296,14 @@ static int tcf_vlan_search(struct net *net, struct tc_action **a, u32 index,
        return tcf_idr_search(tn, a, index);
 }
 
+static size_t tcf_vlan_get_fill_size(const struct tc_action *act)
+{
+       return nla_total_size(sizeof(struct tc_vlan))
+               + nla_total_size(sizeof(u16)) /* TCA_VLAN_PUSH_VLAN_ID */
+               + nla_total_size(sizeof(u16)) /* TCA_VLAN_PUSH_VLAN_PROTOCOL */
+               + nla_total_size(sizeof(u8)); /* TCA_VLAN_PUSH_VLAN_PRIORITY */
+}
+
 static struct tc_action_ops act_vlan_ops = {
        .kind           =       "vlan",
        .type           =       TCA_ACT_VLAN,
@@ -305,6 +313,7 @@ static struct tc_action_ops act_vlan_ops = {
        .init           =       tcf_vlan_init,
        .cleanup        =       tcf_vlan_cleanup,
        .walk           =       tcf_vlan_walker,
+       .get_fill_size  =       tcf_vlan_get_fill_size,
        .lookup         =       tcf_vlan_search,
        .size           =       sizeof(struct tcf_vlan),
 };