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Diffstat (limited to 'net/openvswitch/flow.c')
-rw-r--r--net/openvswitch/flow.c21
1 files changed, 5 insertions, 16 deletions
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index b7f38b161909..98c70630ad06 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -203,10 +203,7 @@ struct sw_flow_actions *ovs_flow_actions_alloc(const struct nlattr *actions)
int actions_len = nla_len(actions);
struct sw_flow_actions *sfa;
- /* At least DP_MAX_PORTS actions are required to be able to flood a
- * packet to every port. Factor of 2 allows for setting VLAN tags,
- * etc. */
- if (actions_len > 2 * DP_MAX_PORTS * nla_total_size(4))
+ if (actions_len > MAX_ACTIONS_BUFSIZE)
return ERR_PTR(-EINVAL);
sfa = kmalloc(sizeof(*sfa) + actions_len, GFP_KERNEL);
@@ -427,19 +424,11 @@ void ovs_flow_deferred_free(struct sw_flow *flow)
call_rcu(&flow->rcu, rcu_free_flow_callback);
}
-/* RCU callback used by ovs_flow_deferred_free_acts. */
-static void rcu_free_acts_callback(struct rcu_head *rcu)
-{
- struct sw_flow_actions *sf_acts = container_of(rcu,
- struct sw_flow_actions, rcu);
- kfree(sf_acts);
-}
-
/* Schedules 'sf_acts' to be freed after the next RCU grace period.
* The caller must hold rcu_read_lock for this to be sensible. */
void ovs_flow_deferred_free_acts(struct sw_flow_actions *sf_acts)
{
- call_rcu(&sf_acts->rcu, rcu_free_acts_callback);
+ kfree_rcu(sf_acts, rcu);
}
static int parse_vlan(struct sk_buff *skb, struct sw_flow_key *key)
@@ -1000,7 +989,7 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
swkey->phy.in_port = in_port;
attrs &= ~(1 << OVS_KEY_ATTR_IN_PORT);
} else {
- swkey->phy.in_port = USHRT_MAX;
+ swkey->phy.in_port = DP_MAX_PORTS;
}
/* Data attributes. */
@@ -1143,7 +1132,7 @@ int ovs_flow_metadata_from_nlattrs(u32 *priority, u16 *in_port,
const struct nlattr *nla;
int rem;
- *in_port = USHRT_MAX;
+ *in_port = DP_MAX_PORTS;
*priority = 0;
nla_for_each_nested(nla, attr, rem) {
@@ -1180,7 +1169,7 @@ int ovs_flow_to_nlattrs(const struct sw_flow_key *swkey, struct sk_buff *skb)
nla_put_u32(skb, OVS_KEY_ATTR_PRIORITY, swkey->phy.priority))
goto nla_put_failure;
- if (swkey->phy.in_port != USHRT_MAX &&
+ if (swkey->phy.in_port != DP_MAX_PORTS &&
nla_put_u32(skb, OVS_KEY_ATTR_IN_PORT, swkey->phy.in_port))
goto nla_put_failure;