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-rw-r--r--include/linux/dccp.h10
-rw-r--r--net/dccp/ipv4.c4
-rw-r--r--net/dccp/ipv6.c4
3 files changed, 8 insertions, 10 deletions
diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index f3fc4392e93d..55d28cb97596 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -270,10 +270,9 @@ static inline struct dccp_hdr *dccp_zeroed_hdr(struct sk_buff *skb, int headlen)
return memset(skb_transport_header(skb), 0, headlen);
}
-static inline struct dccp_hdr_ext *dccp_hdrx(const struct sk_buff *skb)
+static inline struct dccp_hdr_ext *dccp_hdrx(const struct dccp_hdr *dh)
{
- return (struct dccp_hdr_ext *)(skb_transport_header(skb) +
- sizeof(struct dccp_hdr));
+ return (struct dccp_hdr_ext *)((unsigned char *)dh + sizeof(*dh));
}
static inline unsigned int __dccp_basic_hdr_len(const struct dccp_hdr *dh)
@@ -287,13 +286,12 @@ static inline unsigned int dccp_basic_hdr_len(const struct sk_buff *skb)
return __dccp_basic_hdr_len(dh);
}
-static inline __u64 dccp_hdr_seq(const struct sk_buff *skb)
+static inline __u64 dccp_hdr_seq(const struct dccp_hdr *dh)
{
- const struct dccp_hdr *dh = dccp_hdr(skb);
__u64 seq_nr = ntohs(dh->dccph_seq);
if (dh->dccph_x != 0)
- seq_nr = (seq_nr << 32) + ntohl(dccp_hdrx(skb)->dccph_seq_low);
+ seq_nr = (seq_nr << 32) + ntohl(dccp_hdrx(dh)->dccph_seq_low);
else
seq_nr += (u32)dh->dccph_seq2 << 16;
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 222549ab274a..3f1578db93e8 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -241,7 +241,7 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
goto out;
dp = dccp_sk(sk);
- seq = dccp_hdr_seq(skb);
+ seq = dccp_hdr_seq(dh);
if (sk->sk_state != DCCP_LISTEN &&
!between48(seq, dp->dccps_swl, dp->dccps_swh)) {
NET_INC_STATS_BH(LINUX_MIB_OUTOFWINDOWICMPS);
@@ -795,7 +795,7 @@ static int dccp_v4_rcv(struct sk_buff *skb)
dh = dccp_hdr(skb);
- DCCP_SKB_CB(skb)->dccpd_seq = dccp_hdr_seq(skb);
+ DCCP_SKB_CB(skb)->dccpd_seq = dccp_hdr_seq(dh);
DCCP_SKB_CB(skb)->dccpd_type = dh->dccph_type;
dccp_pr_debug("%8.8s "
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index bbadd6681b83..62428ff137dd 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -173,7 +173,7 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
icmpv6_err_convert(type, code, &err);
- seq = DCCP_SKB_CB(skb)->dccpd_seq;
+ seq = dccp_hdr_seq(dh);
/* Might be for an request_sock */
switch (sk->sk_state) {
struct request_sock *req, **prev;
@@ -787,7 +787,7 @@ static int dccp_v6_rcv(struct sk_buff *skb)
dh = dccp_hdr(skb);
- DCCP_SKB_CB(skb)->dccpd_seq = dccp_hdr_seq(skb);
+ DCCP_SKB_CB(skb)->dccpd_seq = dccp_hdr_seq(dh);
DCCP_SKB_CB(skb)->dccpd_type = dh->dccph_type;
if (dccp_packet_without_ack(skb))