openvswitch: Remove pkt_key from OVS_CB
OVS keeps pointer to packet key in skb->cb, but the packet key is
store on stack. This could make code bit tricky. So it is better to
get rid of the pointer.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 5231652..8a1eb56 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -38,6 +38,7 @@
#include "vport.h"
static int do_execute_actions(struct datapath *dp, struct sk_buff *skb,
+ struct sw_flow_key *key,
const struct nlattr *attr, int len);
static int make_writable(struct sk_buff *skb, int write_len)
@@ -410,16 +411,14 @@
}
static int output_userspace(struct datapath *dp, struct sk_buff *skb,
- const struct nlattr *attr)
+ struct sw_flow_key *key, const struct nlattr *attr)
{
struct dp_upcall_info upcall;
const struct nlattr *a;
int rem;
- BUG_ON(!OVS_CB(skb)->pkt_key);
-
upcall.cmd = OVS_PACKET_CMD_ACTION;
- upcall.key = OVS_CB(skb)->pkt_key;
+ upcall.key = key;
upcall.userdata = NULL;
upcall.portid = 0;
@@ -445,7 +444,7 @@
}
static int sample(struct datapath *dp, struct sk_buff *skb,
- const struct nlattr *attr)
+ struct sw_flow_key *key, const struct nlattr *attr)
{
const struct nlattr *acts_list = NULL;
const struct nlattr *a;
@@ -493,7 +492,7 @@
* return the error code and let the caller (also
* do_execute_actions()) free skb on error.
*/
- return do_execute_actions(dp, sample_skb, a, rem);
+ return do_execute_actions(dp, sample_skb, key, a, rem);
}
static int execute_set_action(struct sk_buff *skb,
@@ -544,6 +543,7 @@
/* Execute a list of actions against 'skb'. */
static int do_execute_actions(struct datapath *dp, struct sk_buff *skb,
+ struct sw_flow_key *key,
const struct nlattr *attr, int len)
{
/* Every output action needs a separate clone of 'skb', but the common
@@ -569,7 +569,7 @@
break;
case OVS_ACTION_ATTR_USERSPACE:
- output_userspace(dp, skb, a);
+ output_userspace(dp, skb, key, a);
break;
case OVS_ACTION_ATTR_PUSH_VLAN:
@@ -587,7 +587,7 @@
break;
case OVS_ACTION_ATTR_SAMPLE:
- err = sample(dp, skb, a);
+ err = sample(dp, skb, key, a);
if (unlikely(err)) /* skb already freed. */
return err;
break;
@@ -608,10 +608,12 @@
}
/* Execute a list of actions against 'skb'. */
-int ovs_execute_actions(struct datapath *dp, struct sk_buff *skb)
+int ovs_execute_actions(struct datapath *dp, struct sk_buff *skb,
+ struct sw_flow_key *key)
{
struct sw_flow_actions *acts = rcu_dereference(OVS_CB(skb)->flow->sf_acts);
OVS_CB(skb)->tun_key = NULL;
- return do_execute_actions(dp, skb, acts->actions, acts->actions_len);
+ return do_execute_actions(dp, skb, key,
+ acts->actions, acts->actions_len);
}