openvswitch: Constify various function arguments

Help produce better optimized code.

Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 10c94ac969f4..394efa67934e 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -69,7 +69,7 @@ static void action_fifo_init(struct action_fifo *fifo)
         fifo->tail = 0;
 }
 
-static bool action_fifo_is_empty(struct action_fifo *fifo)
+static bool action_fifo_is_empty(const struct action_fifo *fifo)
 {
         return (fifo->head == fifo->tail);
 }
@@ -92,7 +92,7 @@ static struct deferred_action *action_fifo_put(struct action_fifo *fifo)
 
 /* Return true if fifo is not full */
 static struct deferred_action *add_deferred_actions(struct sk_buff *skb,
-                                                    struct sw_flow_key *key,
+                                                    const struct sw_flow_key *key,
                                                     const struct nlattr *attr)
 {
         struct action_fifo *fifo;
@@ -944,7 +944,8 @@ static void process_deferred_actions(struct datapath *dp)
 
 /* Execute a list of actions against 'skb'. */
 int ovs_execute_actions(struct datapath *dp, struct sk_buff *skb,
-                        struct sw_flow_actions *acts, struct sw_flow_key *key)
+                        const struct sw_flow_actions *acts,
+                        struct sw_flow_key *key)
 {
         int level = this_cpu_read(exec_actions_level);
         int err;