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| author | David S. Miller <davem@davemloft.net> | 2012-02-06 21:14:37 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-02-09 19:50:34 +0100 |
| commit | 16bda13d90c8d5da243e2cfa1677e62ecce26860 (patch) | |
| tree | d10c9e0f9b043170c5bba4599ab1dc006d2a76eb /net | |
| parent | ixgbe: ethtool: stats user buffer overrun (diff) | |
| download | linux-16bda13d90c8d5da243e2cfa1677e62ecce26860.tar.xz linux-16bda13d90c8d5da243e2cfa1677e62ecce26860.zip | |
net: Make qdisc_skb_cb upper size bound explicit.
Just like skb->cb[], so that qdisc_skb_cb can be encapsulated inside
of other data structures.
This is intended to be used by IPoIB so that it can remember
addressing information stored at hard_header_ops->create() time that
it can fetch when the packet gets to the transmit routine.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sched/sch_choke.c | 3 | ||||
| -rw-r--r-- | net/sched/sch_netem.c | 3 | ||||
| -rw-r--r-- | net/sched/sch_sfb.c | 3 | ||||
| -rw-r--r-- | net/sched/sch_sfq.c | 5 |
4 files changed, 5 insertions, 9 deletions
diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c index e465064d39a3..7e267d7b9c75 100644 --- a/net/sched/sch_choke.c +++ b/net/sched/sch_choke.c @@ -148,8 +148,7 @@ struct choke_skb_cb { static inline struct choke_skb_cb *choke_skb_cb(const struct sk_buff *skb) { - BUILD_BUG_ON(sizeof(skb->cb) < - sizeof(struct qdisc_skb_cb) + sizeof(struct choke_skb_cb)); + qdisc_cb_private_validate(skb, sizeof(struct choke_skb_cb)); return (struct choke_skb_cb *)qdisc_skb_cb(skb)->data; } diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c index 2776012132ea..e83d61ca78ca 100644 --- a/net/sched/sch_netem.c +++ b/net/sched/sch_netem.c @@ -130,8 +130,7 @@ struct netem_skb_cb { static inline struct netem_skb_cb *netem_skb_cb(struct sk_buff *skb) { - BUILD_BUG_ON(sizeof(skb->cb) < - sizeof(struct qdisc_skb_cb) + sizeof(struct netem_skb_cb)); + qdisc_cb_private_validate(skb, sizeof(struct netem_skb_cb)); return (struct netem_skb_cb *)qdisc_skb_cb(skb)->data; } diff --git a/net/sched/sch_sfb.c b/net/sched/sch_sfb.c index 96e42cae4c7a..d7eea99333e9 100644 --- a/net/sched/sch_sfb.c +++ b/net/sched/sch_sfb.c @@ -94,8 +94,7 @@ struct sfb_skb_cb { static inline struct sfb_skb_cb *sfb_skb_cb(const struct sk_buff *skb) { - BUILD_BUG_ON(sizeof(skb->cb) < - sizeof(struct qdisc_skb_cb) + sizeof(struct sfb_skb_cb)); + qdisc_cb_private_validate(skb, sizeof(struct sfb_skb_cb)); return (struct sfb_skb_cb *)qdisc_skb_cb(skb)->data; } diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c index 67494aef9acf..60d47180f043 100644 --- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -166,9 +166,8 @@ struct sfq_skb_cb { static inline struct sfq_skb_cb *sfq_skb_cb(const struct sk_buff *skb) { - BUILD_BUG_ON(sizeof(skb->cb) < - sizeof(struct qdisc_skb_cb) + sizeof(struct sfq_skb_cb)); - return (struct sfq_skb_cb *)qdisc_skb_cb(skb)->data; + qdisc_cb_private_validate(skb, sizeof(struct sfq_skb_cb)); + return (struct sfq_skb_cb *)qdisc_skb_cb(skb)->data; } static unsigned int sfq_hash(const struct sfq_sched_data *q, |