net: skb->dst accessors
Define three accessors to get/set dst attached to a skb
struct dst_entry *skb_dst(const struct sk_buff *skb)
void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)
void skb_dst_drop(struct sk_buff *skb)
This one should replace occurrences of :
dst_release(skb->dst)
skb->dst = NULL;
Delete skb->dst field
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index 0ef4e30..9402a7f 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -84,7 +84,7 @@
case htons(ETH_P_IPV6):
return ntohl(ipv6_hdr(skb)->daddr.s6_addr32[3]);
default:
- return addr_fold(skb->dst) ^ (__force u16)skb->protocol;
+ return addr_fold(skb_dst(skb)) ^ (__force u16)skb->protocol;
}
}
@@ -163,7 +163,7 @@
break;
}
default:
- res = addr_fold(skb->dst) ^ (__force u16)skb->protocol;
+ res = addr_fold(skb_dst(skb)) ^ (__force u16)skb->protocol;
}
return res;
@@ -251,8 +251,8 @@
static u32 flow_get_rtclassid(const struct sk_buff *skb)
{
#ifdef CONFIG_NET_CLS_ROUTE
- if (skb->dst)
- return skb->dst->tclassid;
+ if (skb_dst(skb))
+ return skb_dst(skb)->tclassid;
#endif
return 0;
}
diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index bdf1f41..dd872d5 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -137,7 +137,7 @@
u32 id, h;
int iif, dont_cache = 0;
- if ((dst = skb->dst) == NULL)
+ if ((dst = skb_dst(skb)) == NULL)
goto failure;
id = dst->tclassid;
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index b6b588b..266151a 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -246,11 +246,11 @@
META_COLLECTOR(int_rtclassid)
{
- if (unlikely(skb->dst == NULL))
+ if (unlikely(skb_dst(skb) == NULL))
*err = -1;
else
#ifdef CONFIG_NET_CLS_ROUTE
- dst->value = skb->dst->tclassid;
+ dst->value = skb_dst(skb)->tclassid;
#else
dst->value = 0;
#endif
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 33133d2..8706920 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -149,7 +149,7 @@
break;
}
default:
- h = (unsigned long)skb->dst ^ skb->protocol;
+ h = (unsigned long)skb_dst(skb) ^ skb->protocol;
h2 = (unsigned long)skb->sk;
}
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index a886496..cb1cb1e 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -222,7 +222,7 @@
{
struct netdev_queue *dev_queue = netdev_get_tx_queue(dev, 0);
struct teql_sched_data *q = qdisc_priv(dev_queue->qdisc);
- struct neighbour *mn = skb->dst->neighbour;
+ struct neighbour *mn = skb_dst(skb)->neighbour;
struct neighbour *n = q->ncache;
if (mn->tbl == NULL)
@@ -262,8 +262,8 @@
return -ENODEV;
if (dev->header_ops == NULL ||
- skb->dst == NULL ||
- skb->dst->neighbour == NULL)
+ skb_dst(skb) == NULL ||
+ skb_dst(skb)->neighbour == NULL)
return 0;
return __teql_resolve(skb, skb_res, dev);
}