[SK_BUFF]: Introduce tcp_hdr(), remove skb->h.th

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 16 insertions, 16 deletions

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index c146a02f849..617a5e4ca01 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -127,8 +127,8 @@ static inline __u32 tcp_v4_init_sequence(struct sk_buff *skb)
 {
         return secure_tcp_sequence_number(ip_hdr(skb)->daddr,
                                           ip_hdr(skb)->saddr,
-                                          skb->h.th->dest,
-                                          skb->h.th->source);
+                                          tcp_hdr(skb)->dest,
+                                          tcp_hdr(skb)->source);
 }
 
 int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
@@ -499,7 +499,7 @@ out:
 void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb)
 {
         struct inet_sock *inet = inet_sk(sk);
-        struct tcphdr *th = skb->h.th;
+        struct tcphdr *th = tcp_hdr(skb);
 
         if (skb->ip_summed == CHECKSUM_PARTIAL) {
                 th->check = ~tcp_v4_check(len, inet->saddr,
@@ -522,7 +522,7 @@ int tcp_v4_gso_send_check(struct sk_buff *skb)
                 return -EINVAL;
 
         iph = ip_hdr(skb);
-        th = skb->h.th;
+        th = tcp_hdr(skb);
 
         th->check = 0;
         th->check = ~tcp_v4_check(skb->len, iph->saddr, iph->daddr, 0);
@@ -546,7 +546,7 @@ int tcp_v4_gso_send_check(struct sk_buff *skb)
 
 static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
 {
-        struct tcphdr *th = skb->h.th;
+        struct tcphdr *th = tcp_hdr(skb);
         struct {
                 struct tcphdr th;
 #ifdef CONFIG_TCP_MD5SIG
@@ -622,7 +622,7 @@ static void tcp_v4_send_ack(struct tcp_timewait_sock *twsk,
                             struct sk_buff *skb, u32 seq, u32 ack,
                             u32 win, u32 ts)
 {
-        struct tcphdr *th = skb->h.th;
+        struct tcphdr *th = tcp_hdr(skb);
         struct {
                 struct tcphdr th;
                 __be32 opt[(TCPOLEN_TSTAMP_ALIGNED >> 2)
@@ -745,7 +745,7 @@ static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req,
         skb = tcp_make_synack(sk, dst, req);
 
         if (skb) {
-                struct tcphdr *th = skb->h.th;
+                struct tcphdr *th = tcp_hdr(skb);
 
                 th->check = tcp_v4_check(skb->len,
                                          ireq->loc_addr,
@@ -781,7 +781,7 @@ static void syn_flood_warning(struct sk_buff *skb)
                 warntime = jiffies;
                 printk(KERN_INFO
                        "possible SYN flooding on port %d. Sending cookies.\n",
-                       ntohs(skb->h.th->dest));
+                       ntohs(tcp_hdr(skb)->dest));
         }
 }
 #endif
@@ -1134,7 +1134,7 @@ static int tcp_v4_inbound_md5_hash(struct sock *sk, struct sk_buff *skb)
         __u8 *hash_location = NULL;
         struct tcp_md5sig_key *hash_expected;
         const struct iphdr *iph = ip_hdr(skb);
-        struct tcphdr *th = skb->h.th;
+        struct tcphdr *th = tcp_hdr(skb);
         int length = (th->doff << 2) - sizeof(struct tcphdr);
         int genhash;
         unsigned char *ptr;
@@ -1327,7 +1327,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
         ireq->rmt_addr = saddr;
         ireq->opt = tcp_v4_save_options(sk, skb);
         if (!want_cookie)
-                TCP_ECN_create_request(req, skb->h.th);
+                TCP_ECN_create_request(req, tcp_hdr(skb));
 
         if (want_cookie) {
 #ifdef CONFIG_SYN_COOKIES
@@ -1375,7 +1375,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
                         LIMIT_NETDEBUG(KERN_DEBUG "TCP: drop open "
                                        "request from %u.%u.%u.%u/%u\n",
                                        NIPQUAD(saddr),
-                                       ntohs(skb->h.th->source));
+                                       ntohs(tcp_hdr(skb)->source));
                         dst_release(dst);
                         goto drop_and_free;
                 }
@@ -1481,7 +1481,7 @@ exit:
 
 static struct sock *tcp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
 {
-        struct tcphdr *th = skb->h.th;
+        struct tcphdr *th = tcp_hdr(skb);
         const struct iphdr *iph = ip_hdr(skb);
         struct sock *nsk;
         struct request_sock **prev;
@@ -1556,7 +1556,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
 
         if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
                 TCP_CHECK_TIMER(sk);
-                if (tcp_rcv_established(sk, skb, skb->h.th, skb->len)) {
+                if (tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len)) {
                         rsk = sk;
                         goto reset;
                 }
@@ -1582,7 +1582,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
         }
 
         TCP_CHECK_TIMER(sk);
-        if (tcp_rcv_state_process(sk, skb, skb->h.th, skb->len)) {
+        if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb), skb->len)) {
                 rsk = sk;
                 goto reset;
         }
@@ -1625,7 +1625,7 @@ int tcp_v4_rcv(struct sk_buff *skb)
         if (!pskb_may_pull(skb, sizeof(struct tcphdr)))
                 goto discard_it;
 
-        th = skb->h.th;
+        th = tcp_hdr(skb);
 
         if (th->doff < sizeof(struct tcphdr) / 4)
                 goto bad_packet;
@@ -1640,7 +1640,7 @@ int tcp_v4_rcv(struct sk_buff *skb)
              tcp_v4_checksum_init(skb)))
                 goto bad_packet;
 
-        th = skb->h.th;
+        th = tcp_hdr(skb);
         iph = ip_hdr(skb);
         TCP_SKB_CB(skb)->seq = ntohl(th->seq);
         TCP_SKB_CB(skb)->end_seq = (TCP_SKB_CB(skb)->seq + th->syn + th->fin +