[NET]: Store skb->timestamp as offset to a base timestamp

Reduces skb size by 8 bytes on 64-bit.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

24 files changed, 92 insertions, 61 deletions

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 4f9e11b..55dc42e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -999,7 +999,7 @@ static int hci_send_frame(struct sk_buff *skb)
 
 	if (atomic_read(&hdev->promisc)) {
 		/* Time stamp */
-		do_gettimeofday(&skb->stamp);
+		__net_timestamp(skb);
 
 		hci_send_to_sock(hdev, skb);
 	}
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 40b2195..d6da093 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1087,7 +1087,7 @@ void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
 	memcpy(ev->data, data, dlen);
 
 	bt_cb(skb)->incoming = 1;
-	do_gettimeofday(&skb->stamp);
+	__net_timestamp(skb);
 
 	bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
 	skb->dev = (void *) hdev;
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index eed9090..32ef797 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -332,8 +332,12 @@ static inline void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_
 		put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(incoming), &incoming);
 	}
 
-	if (mask & HCI_CMSG_TSTAMP)
-		put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, sizeof(skb->stamp), &skb->stamp);
+	if (mask & HCI_CMSG_TSTAMP) {
+		struct timeval tv;
+
+		skb_get_timestamp(skb, &tv);
+		put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, sizeof(tv), &tv);
+	}
 }
  
 static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock, 
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index 561d75c..acb888d 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -162,7 +162,7 @@ static void ebt_ulog(const struct sk_buff *skb, unsigned int hooknr,
 	pm->version = EBT_ULOG_VERSION;
 	do_gettimeofday(&pm->stamp);
 	if (ub->qlen == 1)
-		ub->skb->stamp = pm->stamp;
+		skb_set_timestamp(ub->skb, &pm->stamp);
 	pm->data_len = copy_len;
 	pm->mark = skb->nfmark;
 	pm->hook = hooknr;
diff --git a/net/core/dev.c b/net/core/dev.c
index 9d153eb..a3ed53c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1009,13 +1009,22 @@ void net_disable_timestamp(void)
 	atomic_dec(&netstamp_needed);
 }
 
-static inline void net_timestamp(struct timeval *stamp)
+void __net_timestamp(struct sk_buff *skb)
+{
+	struct timeval tv;
+
+	do_gettimeofday(&tv);
+	skb_set_timestamp(skb, &tv);
+}
+EXPORT_SYMBOL(__net_timestamp);
+
+static inline void net_timestamp(struct sk_buff *skb)
 {
 	if (atomic_read(&netstamp_needed))
-		do_gettimeofday(stamp);
+		__net_timestamp(skb);
 	else {
-		stamp->tv_sec = 0;
-		stamp->tv_usec = 0;
+		skb->tstamp.off_sec = 0;
+		skb->tstamp.off_usec = 0;
 	}
 }
 
@@ -1027,7 +1036,8 @@ static inline void net_timestamp(struct timeval *stamp)
 void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct packet_type *ptype;
-	net_timestamp(&skb->stamp);
+
+	net_timestamp(skb);
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(ptype, &ptype_all, list) {
@@ -1379,8 +1389,8 @@ int netif_rx(struct sk_buff *skb)
 	if (netpoll_rx(skb))
 		return NET_RX_DROP;
 
-	if (!skb->stamp.tv_sec)
-		net_timestamp(&skb->stamp);
+	if (!skb->tstamp.off_sec)
+		net_timestamp(skb);
 
 	/*
 	 * The code is rearranged so that the path is the most
@@ -1566,8 +1576,8 @@ int netif_receive_skb(struct sk_buff *skb)
 	if (skb->dev->poll && netpoll_rx(skb))
 		return NET_RX_DROP;
 
-	if (!skb->stamp.tv_sec)
-		net_timestamp(&skb->stamp);
+	if (!skb->tstamp.off_sec)
+		net_timestamp(skb);
 
 	if (!skb->input_dev)
 		skb->input_dev = skb->dev;
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 1beb782..72ee00f 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1217,7 +1217,7 @@ static void neigh_proxy_process(unsigned long arg)
 
 	while (skb != (struct sk_buff *)&tbl->proxy_queue) {
 		struct sk_buff *back = skb;
-		long tdif = back->stamp.tv_usec - now;
+		long tdif = NEIGH_CB(back)->sched_next - now;
 
 		skb = skb->next;
 		if (tdif <= 0) {
@@ -1248,8 +1248,9 @@ void pneigh_enqueue(struct neigh_table *tbl, struct neigh_parms *p,
 		kfree_skb(skb);
 		return;
 	}
-	skb->stamp.tv_sec  = LOCALLY_ENQUEUED;
-	skb->stamp.tv_usec = sched_next;
+
+	NEIGH_CB(skb)->sched_next = sched_next;
+	NEIGH_CB(skb)->flags |= LOCALLY_ENQUEUED;
 
 	spin_lock(&tbl->proxy_queue.lock);
 	if (del_timer(&tbl->proxy_timer)) {
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ef498cb..39a161d 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -70,6 +70,8 @@
 
 static kmem_cache_t *skbuff_head_cache;
 
+struct timeval __read_mostly skb_tv_base;
+
 /*
  *	Keep out-of-line to prevent kernel bloat.
  *	__builtin_return_address is not used because it is not always
@@ -331,7 +333,7 @@ struct sk_buff *skb_clone(struct sk_buff *skb, unsigned int __nocast gfp_mask)
 
 	n->next = n->prev = NULL;
 	n->sk = NULL;
-	C(stamp);
+	C(tstamp);
 	C(dev);
 	C(h);
 	C(nh);
@@ -408,7 +410,7 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	memcpy(new->cb, old->cb, sizeof(old->cb));
 	new->local_df	= old->local_df;
 	new->pkt_type	= old->pkt_type;
-	new->stamp	= old->stamp;
+	new->tstamp	= old->tstamp;
 	new->destructor = NULL;
 #ifdef CONFIG_NETFILTER
 	new->nfmark	= old->nfmark;
@@ -1645,6 +1647,7 @@ void __init skb_init(void)
 					      NULL, NULL);
 	if (!skbuff_head_cache)
 		panic("cannot create skbuff cache");
+	do_gettimeofday(&skb_tv_base);
 }
 
 EXPORT_SYMBOL(___pskb_trim);
@@ -1678,3 +1681,4 @@ EXPORT_SYMBOL(skb_prepare_seq_read);
 EXPORT_SYMBOL(skb_seq_read);
 EXPORT_SYMBOL(skb_abort_seq_read);
 EXPORT_SYMBOL(skb_find_text);
+EXPORT_SYMBOL(skb_tv_base);
diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index 8f06399..4a62093 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -159,7 +159,7 @@ static int econet_recvmsg(struct kiocb *iocb, struct socket *sock,
 	err = memcpy_toiovec(msg->msg_iov, skb->data, copied);
 	if (err)
 		goto out_free;
-	sk->sk_stamp = skb->stamp;
+	skb_get_timestamp(skb, &sk->sk_stamp);
 
 	if (msg->msg_name)
 		memcpy(msg->msg_name, skb->cb, msg->msg_namelen);
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 6eb9c54..8bf312b 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -865,7 +865,7 @@ static int arp_process(struct sk_buff *skb)
 				if (n)
 					neigh_release(n);
 
-				if (skb->stamp.tv_sec == LOCALLY_ENQUEUED || 
+				if (NEIGH_CB(skb)->flags & LOCALLY_ENQUEUED || 
 				    skb->pkt_type == PACKET_HOST ||
 				    in_dev->arp_parms->proxy_delay == 0) {
 					arp_send(ARPOP_REPLY,ETH_P_ARP,sip,dev,tip,sha,dev->dev_addr,sha);
@@ -948,6 +948,8 @@ int arp_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
 	if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
 		goto out_of_mem;
 
+	memset(NEIGH_CB(skb), 0, sizeof(struct neighbour_cb));
+
 	return NF_HOOK(NF_ARP, NF_ARP_IN, skb, dev, NULL, arp_process);
 
 freeskb:
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 1ac64c0..9e6e683 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -533,7 +533,7 @@ static void ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
  	if (skb->dev)
  		qp->iif = skb->dev->ifindex;
 	skb->dev = NULL;
-	qp->stamp = skb->stamp;
+	skb_get_timestamp(skb, &qp->stamp);
 	qp->meat += skb->len;
 	atomic_add(skb->truesize, &ip_frag_mem);
 	if (offset == 0)
@@ -615,7 +615,7 @@ static struct sk_buff *ip_frag_reasm(struct ipq *qp, struct net_device *dev)
 
 	head->next = NULL;
 	head->dev = dev;
-	head->stamp = qp->stamp;
+	skb_set_timestamp(head, &qp->stamp);
 
 	iph = head->nh.iph;
 	iph->frag_off = 0;
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 1c49833..7f2bcc7 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -240,8 +240,8 @@ ipq_build_packet_message(struct ipq_queue_entry *entry, int *errp)
 
 	pmsg->packet_id       = (unsigned long )entry;
 	pmsg->data_len        = data_len;
-	pmsg->timestamp_sec   = entry->skb->stamp.tv_sec;
-	pmsg->timestamp_usec  = entry->skb->stamp.tv_usec;
+	pmsg->timestamp_sec   = skb_tv_base.tv_sec + entry->skb->tstamp.off_sec;
+	pmsg->timestamp_usec  = skb_tv_base.tv_usec + entry->skb->tstamp.off_usec;
 	pmsg->mark            = entry->skb->nfmark;
 	pmsg->hook            = entry->info->hook;
 	pmsg->hw_protocol     = entry->skb->protocol;
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index b86f06e..1d8ac45 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -220,13 +220,13 @@ static void ipt_ulog_packet(unsigned int hooknum,
 	pm = NLMSG_DATA(nlh);
 
 	/* We might not have a timestamp, get one */
-	if (skb->stamp.tv_sec == 0)
-		do_gettimeofday((struct timeval *)&skb->stamp);
+	if (skb->tstamp.off_sec == 0)
+		__net_timestamp((struct sk_buff *)skb);
 
 	/* copy hook, prefix, timestamp, payload, etc. */
 	pm->data_len = copy_len;
-	pm->timestamp_sec = skb->stamp.tv_sec;
-	pm->timestamp_usec = skb->stamp.tv_usec;
+	pm->timestamp_sec = skb_tv_base.tv_sec + skb->tstamp.off_sec;
+	pm->timestamp_usec = skb_tv_base.tv_usec + skb->tstamp.off_usec;
 	pm->mark = skb->nfmark;
 	pm->hook = hooknum;
 	if (prefix != NULL)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index fdd9547..ebb8654 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2097,9 +2097,13 @@ static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p, s32 *seq_usrtt
 				seq_rtt = -1;
 			} else if (seq_rtt < 0)
 				seq_rtt = now - scb->when;
-			if (seq_usrtt)
-				*seq_usrtt = (usnow.tv_sec - skb->stamp.tv_sec) * 1000000
-					+ (usnow.tv_usec - skb->stamp.tv_usec);
+			if (seq_usrtt) {
+				struct timeval tv;
+			
+				skb_get_timestamp(skb, &tv);
+				*seq_usrtt = (usnow.tv_sec - tv.tv_sec) * 1000000
+					+ (usnow.tv_usec - tv.tv_usec);
+			}
 
 			if (sacked & TCPCB_SACKED_ACKED)
 				tp->sacked_out -= tcp_skb_pcount(skb);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 267b0fc..8d92ab5 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -282,7 +282,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb)
 
 		/* If congestion control is doing timestamping */
 		if (icsk->icsk_ca_ops->rtt_sample)
-			do_gettimeofday(&skb->stamp);
+			__net_timestamp(skb);
 
 		sysctl_flags = 0;
 		if (tcb->flags & TCPCB_FLAG_SYN) {
@@ -483,7 +483,7 @@ static int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned
 	 * skbs, which it never sent before. --ANK
 	 */
 	TCP_SKB_CB(buff)->when = TCP_SKB_CB(skb)->when;
-	buff->stamp = skb->stamp;
+	buff->tstamp = skb->tstamp;
 
 	if (TCP_SKB_CB(skb)->sacked & TCPCB_LOST) {
 		tp->lost_out -= tcp_skb_pcount(skb);
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 7ae72d4..a7eae30 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -812,7 +812,7 @@ static void ndisc_recv_ns(struct sk_buff *skb)
 		if (ipv6_chk_acast_addr(dev, &msg->target) ||
 		    (idev->cnf.forwarding && 
 		     pneigh_lookup(&nd_tbl, &msg->target, dev, 0))) {
-			if (skb->stamp.tv_sec != LOCALLY_ENQUEUED &&
+			if (!(NEIGH_CB(skb)->flags & LOCALLY_ENQUEUED) &&
 			    skb->pkt_type != PACKET_HOST &&
 			    inc != 0 &&
 			    idev->nd_parms->proxy_delay != 0) {
@@ -1487,6 +1487,8 @@ int ndisc_rcv(struct sk_buff *skb)
 		return 0;
 	}
 
+	memset(NEIGH_CB(skb), 0, sizeof(struct neighbour_cb));
+
 	switch (msg->icmph.icmp6_type) {
 	case NDISC_NEIGHBOUR_SOLICITATION:
 		ndisc_recv_ns(skb);
diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index 7ecb91e..4467645 100644
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -238,8 +238,8 @@ ipq_build_packet_message(struct ipq_queue_entry *entry, int *errp)
 
 	pmsg->packet_id       = (unsigned long )entry;
 	pmsg->data_len        = data_len;
-	pmsg->timestamp_sec   = entry->skb->stamp.tv_sec;
-	pmsg->timestamp_usec  = entry->skb->stamp.tv_usec;
+	pmsg->timestamp_sec   = skb_tv_base.tv_sec + entry->skb->tstamp.off_sec;
+	pmsg->timestamp_usec  = skb_tv_base.tv_usec + entry->skb->tstamp.off_usec;
 	pmsg->mark            = entry->skb->nfmark;
 	pmsg->hook            = entry->info->hook;
 	pmsg->hw_protocol     = entry->skb->protocol;
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 59e7c63..9d9e043 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -562,7 +562,7 @@ static void ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
 	if (skb->dev)
 		fq->iif = skb->dev->ifindex;
 	skb->dev = NULL;
-	fq->stamp = skb->stamp;
+	skb_get_timestamp(skb, &fq->stamp);
 	fq->meat += skb->len;
 	atomic_add(skb->truesize, &ip6_frag_mem);
 
@@ -664,7 +664,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
 
 	head->next = NULL;
 	head->dev = dev;
-	head->stamp = fq->stamp;
+	skb_set_timestamp(head, &fq->stamp);
 	head->nh.ipv6h->payload_len = htons(payload_len);
 
 	*skb_in = head;
diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
index 39d5939..c54f8ac 100644
--- a/net/ipx/af_ipx.c
+++ b/net/ipx/af_ipx.c
@@ -1796,8 +1796,8 @@ static int ipx_recvmsg(struct kiocb *iocb, struct socket *sock,
 				     copied);
 	if (rc)
 		goto out_free;
-	if (skb->stamp.tv_sec)
-		sk->sk_stamp = skb->stamp;
+	if (skb->tstamp.off_sec)
+		skb_get_timestamp(skb, &sk->sk_stamp)
 
 	msg->msg_namelen = sizeof(*sipx);
 
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index 464c9fa..ff5601c 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -491,11 +491,11 @@ __build_packet_message(struct nfulnl_instance *inst,
 		NFA_PUT(inst->skb, NFULA_HWADDR, sizeof(phw), &phw);
 	}
 
-	if (skb->stamp.tv_sec) {
+	if (skb->tstamp.off_sec) {
 		struct nfulnl_msg_packet_timestamp ts;
 
-		ts.sec = cpu_to_be64(skb->stamp.tv_sec);
-		ts.usec = cpu_to_be64(skb->stamp.tv_usec);
+		ts.sec = cpu_to_be64(skb_tv_base.tv_sec + skb->tstamp.off_sec);
+		ts.usec = cpu_to_be64(skb_tv_base.tv_usec + skb->tstamp.off_usec);
 
 		NFA_PUT(inst->skb, NFULA_TIMESTAMP, sizeof(ts), &ts);
 	}
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 741686f..e3a5285 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -494,11 +494,11 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
 		NFA_PUT(skb, NFQA_HWADDR, sizeof(phw), &phw);
 	}
 
-	if (entry->skb->stamp.tv_sec) {
+	if (entry->skb->tstamp.off_sec) {
 		struct nfqnl_msg_packet_timestamp ts;
 
-		ts.sec = htonll(entry->skb->stamp.tv_sec);
-		ts.usec = htonll(entry->skb->stamp.tv_usec);
+		ts.sec = htonll(skb_tv_base.tv_sec + entry->skb->tstamp.off_sec);
+		ts.usec = htonll(skb_tv_base.tv_usec + entry->skb->tstamp.off_usec);
 
 		NFA_PUT(skb, NFQA_TIMESTAMP, sizeof(ts), &ts);
 	}
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index deb5f6f..ba99709 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -635,12 +635,12 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe
 	h->tp_snaplen = snaplen;
 	h->tp_mac = macoff;
 	h->tp_net = netoff;
-	if (skb->stamp.tv_sec == 0) { 
-		do_gettimeofday(&skb->stamp);
+	if (skb->tstamp.off_sec == 0) { 
+		__net_timestamp(skb);
 		sock_enable_timestamp(sk);
 	}
-	h->tp_sec = skb->stamp.tv_sec;
-	h->tp_usec = skb->stamp.tv_usec;
+	h->tp_sec = skb_tv_base.tv_sec + skb->tstamp.off_sec;
+	h->tp_usec = skb_tv_base.tv_usec + skb->tstamp.off_usec;
 
 	sll = (struct sockaddr_ll*)((u8*)h + TPACKET_ALIGN(sizeof(*h)));
 	sll->sll_halen = 0;
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 742be91..28f3224 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -236,8 +236,8 @@ int sctp_rcv(struct sk_buff *skb)
 	}
 
 	/* SCTP seems to always need a timestamp right now (FIXME) */
-	if (skb->stamp.tv_sec == 0) {
-		do_gettimeofday(&skb->stamp);
+	if (skb->tstamp.off_sec == 0) {
+		__net_timestamp(skb);
 		sock_enable_timestamp(sk); 
 	}
 
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 00d32b7..3868a8d 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1362,6 +1362,7 @@ struct sctp_association *sctp_unpack_cookie(
 	char *key;
 	sctp_scope_t scope;
 	struct sk_buff *skb = chunk->skb;
+	struct timeval tv;
 
 	headersize = sizeof(sctp_chunkhdr_t) + SCTP_SECRET_SIZE;
 	bodysize = ntohs(chunk->chunk_hdr->length) - headersize;
@@ -1434,7 +1435,8 @@ no_hmac:
 	 * an association, there is no need to check cookie's expiration
 	 * for init collision case of lost COOKIE ACK.
 	 */
-	if (!asoc && tv_lt(bear_cookie->expiration, skb->stamp)) {
+	skb_get_timestamp(skb, &tv);
+	if (!asoc && tv_lt(bear_cookie->expiration, tv)) {
 		__u16 len;
 		/*
 		 * Section 3.3.10.3 Stale Cookie Error (3)
@@ -1447,10 +1449,9 @@ no_hmac:
 		len = ntohs(chunk->chunk_hdr->length);
 		*errp = sctp_make_op_error_space(asoc, chunk, len);
 		if (*errp) {
-			suseconds_t usecs = (skb->stamp.tv_sec -
+			suseconds_t usecs = (tv.tv_sec -
 				bear_cookie->expiration.tv_sec) * 1000000L +
-				skb->stamp.tv_usec -
-				bear_cookie->expiration.tv_usec;
+				tv.tv_usec - bear_cookie->expiration.tv_usec;
 
 			usecs = htonl(usecs);
 			sctp_init_cause(*errp, SCTP_ERROR_STALE_COOKIE,
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 199d374..05fe2e7 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -584,13 +584,16 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
 		/* possibly an icmp error */
 		dprintk("svc: recvfrom returned error %d\n", -err);
 	}
-	if (skb->stamp.tv_sec == 0) {
-		skb->stamp.tv_sec = xtime.tv_sec; 
-		skb->stamp.tv_usec = xtime.tv_nsec / NSEC_PER_USEC; 
+	if (skb->tstamp.off_sec == 0) {
+		struct timeval tv;
+
+		tv.tv_sec = xtime.tv_sec;
+		tv.tv_usec = xtime.tv_nsec * 1000;
+		skb_set_timestamp(skb, &tv);
 		/* Don't enable netstamp, sunrpc doesn't 
 		   need that much accuracy */
 	}
-	svsk->sk_sk->sk_stamp = skb->stamp;
+	skb_get_timestamp(skb, &svsk->sk_sk->sk_stamp);
 	set_bit(SK_DATA, &svsk->sk_flags); /* there may be more data... */
 
 	/*