Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux

13 files changed, 148 insertions, 139 deletions

diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 2bf8ec9..a19b3e6 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -1263,7 +1263,7 @@ static struct sctp_transport *sctp_trans_elect_best(struct sctp_transport *curr,
 	if (score_curr > score_best)
 		return curr;
 	else if (score_curr == score_best)
-		return sctp_trans_elect_tie(curr, best);
+		return sctp_trans_elect_tie(best, curr);
 	else
 		return best;
 }
@@ -1493,7 +1493,7 @@ void sctp_assoc_rwnd_increase(struct sctp_association *asoc, unsigned int len)
 
 		asoc->peer.sack_needed = 0;
 
-		sctp_outq_tail(&asoc->outqueue, sack);
+		sctp_outq_tail(&asoc->outqueue, sack, GFP_ATOMIC);
 
 		/* Stop the SACK timer.  */
 		timer = &asoc->timers[SCTP_EVENT_TIMEOUT_SACK];
diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index 1543e39..912eb16 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -27,9 +27,9 @@
  *   Vlad Yasevich     <vladislav.yasevich@hp.com>
  */
 
+#include <crypto/hash.h>
 #include <linux/slab.h>
 #include <linux/types.h>
-#include <linux/crypto.h>
 #include <linux/scatterlist.h>
 #include <net/sctp/sctp.h>
 #include <net/sctp/auth.h>
@@ -448,7 +448,7 @@ struct sctp_shared_key *sctp_auth_get_shkey(
  */
 int sctp_auth_init_hmacs(struct sctp_endpoint *ep, gfp_t gfp)
 {
-	struct crypto_hash *tfm = NULL;
+	struct crypto_shash *tfm = NULL;
 	__u16   id;
 
 	/* If AUTH extension is disabled, we are done */
@@ -462,9 +462,8 @@ int sctp_auth_init_hmacs(struct sctp_endpoint *ep, gfp_t gfp)
 		return 0;
 
 	/* Allocated the array of pointers to transorms */
-	ep->auth_hmacs = kzalloc(
-			    sizeof(struct crypto_hash *) * SCTP_AUTH_NUM_HMACS,
-			    gfp);
+	ep->auth_hmacs = kzalloc(sizeof(struct crypto_shash *) *
+				 SCTP_AUTH_NUM_HMACS, gfp);
 	if (!ep->auth_hmacs)
 		return -ENOMEM;
 
@@ -483,8 +482,7 @@ int sctp_auth_init_hmacs(struct sctp_endpoint *ep, gfp_t gfp)
 			continue;
 
 		/* Allocate the ID */
-		tfm = crypto_alloc_hash(sctp_hmac_list[id].hmac_name, 0,
-					CRYPTO_ALG_ASYNC);
+		tfm = crypto_alloc_shash(sctp_hmac_list[id].hmac_name, 0, 0);
 		if (IS_ERR(tfm))
 			goto out_err;
 
@@ -500,7 +498,7 @@ out_err:
 }
 
 /* Destroy the hmac tfm array */
-void sctp_auth_destroy_hmacs(struct crypto_hash *auth_hmacs[])
+void sctp_auth_destroy_hmacs(struct crypto_shash *auth_hmacs[])
 {
 	int i;
 
@@ -508,8 +506,7 @@ void sctp_auth_destroy_hmacs(struct crypto_hash *auth_hmacs[])
 		return;
 
 	for (i = 0; i < SCTP_AUTH_NUM_HMACS; i++) {
-		if (auth_hmacs[i])
-			crypto_free_hash(auth_hmacs[i]);
+		crypto_free_shash(auth_hmacs[i]);
 	}
 	kfree(auth_hmacs);
 }
@@ -709,8 +706,7 @@ void sctp_auth_calculate_hmac(const struct sctp_association *asoc,
 			      struct sctp_auth_chunk *auth,
 			      gfp_t gfp)
 {
-	struct scatterlist sg;
-	struct hash_desc desc;
+	struct crypto_shash *tfm;
 	struct sctp_auth_bytes *asoc_key;
 	__u16 key_id, hmac_id;
 	__u8 *digest;
@@ -742,16 +738,22 @@ void sctp_auth_calculate_hmac(const struct sctp_association *asoc,
 
 	/* set up scatter list */
 	end = skb_tail_pointer(skb);
-	sg_init_one(&sg, auth, end - (unsigned char *)auth);
 
-	desc.tfm = asoc->ep->auth_hmacs[hmac_id];
-	desc.flags = 0;
+	tfm = asoc->ep->auth_hmacs[hmac_id];
 
 	digest = auth->auth_hdr.hmac;
-	if (crypto_hash_setkey(desc.tfm, &asoc_key->data[0], asoc_key->len))
+	if (crypto_shash_setkey(tfm, &asoc_key->data[0], asoc_key->len))
 		goto free;
 
-	crypto_hash_digest(&desc, &sg, sg.length, digest);
+	{
+		SHASH_DESC_ON_STACK(desc, tfm);
+
+		desc->tfm = tfm;
+		desc->flags = 0;
+		crypto_shash_digest(desc, (u8 *)auth,
+				    end - (unsigned char *)auth, digest);
+		shash_desc_zero(desc);
+	}
 
 free:
 	if (free_key)
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index a338091..958ef5f 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -70,19 +70,6 @@ static struct sctp_datamsg *sctp_datamsg_new(gfp_t gfp)
 	return msg;
 }
 
-void sctp_datamsg_free(struct sctp_datamsg *msg)
-{
-	struct sctp_chunk *chunk;
-
-	/* This doesn't have to be a _safe vairant because
-	 * sctp_chunk_free() only drops the refs.
-	 */
-	list_for_each_entry(chunk, &msg->chunks, frag_list)
-		sctp_chunk_free(chunk);
-
-	sctp_datamsg_put(msg);
-}
-
 /* Final destructruction of datamsg memory. */
 static void sctp_datamsg_destroy(struct sctp_datamsg *msg)
 {
@@ -273,7 +260,8 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
 				frag |= SCTP_DATA_SACK_IMM;
 		}
 
-		chunk = sctp_make_datafrag_empty(asoc, sinfo, len, frag, 0);
+		chunk = sctp_make_datafrag_empty(asoc, sinfo, len, frag,
+						 0, GFP_KERNEL);
 
 		if (!chunk) {
 			err = -ENOMEM;
@@ -309,7 +297,8 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
 		    (sinfo->sinfo_flags & SCTP_SACK_IMMEDIATELY))
 			frag |= SCTP_DATA_SACK_IMM;
 
-		chunk = sctp_make_datafrag_empty(asoc, sinfo, over, frag, 0);
+		chunk = sctp_make_datafrag_empty(asoc, sinfo, over, frag,
+						 0, GFP_KERNEL);
 
 		if (!chunk) {
 			err = -ENOMEM;
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 2522a61..9d494e3 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -42,7 +42,6 @@
 #include <linux/slab.h>
 #include <linux/in.h>
 #include <linux/random.h>	/* get_random_bytes() */
-#include <linux/crypto.h>
 #include <net/sock.h>
 #include <net/ipv6.h>
 #include <net/sctp/sctp.h>
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 49d2cc7..db76f1a 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -221,7 +221,7 @@ int sctp_rcv(struct sk_buff *skb)
 		goto discard_release;
 
 	/* Create an SCTP packet structure. */
-	chunk = sctp_chunkify(skb, asoc, sk);
+	chunk = sctp_chunkify(skb, asoc, sk, GFP_ATOMIC);
 	if (!chunk)
 		goto discard_release;
 	SCTP_INPUT_CB(skb)->chunk = chunk;
@@ -937,7 +937,6 @@ static struct sctp_association *__sctp_lookup_association(
 	struct sctp_transport *t;
 	struct sctp_association *asoc = NULL;
 
-	rcu_read_lock();
 	t = sctp_addrs_lookup_transport(net, local, peer);
 	if (!t || !sctp_transport_hold(t))
 		goto out;
@@ -949,7 +948,6 @@ static struct sctp_association *__sctp_lookup_association(
 	sctp_transport_put(t);
 
 out:
-	rcu_read_unlock();
 	return asoc;
 }
 
@@ -962,7 +960,9 @@ struct sctp_association *sctp_lookup_association(struct net *net,
 {
 	struct sctp_association *asoc;
 
+	rcu_read_lock();
 	asoc = __sctp_lookup_association(net, laddr, paddr, transportp);
+	rcu_read_unlock();
 
 	return asoc;
 }
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 9d610ed..736c004 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -153,7 +153,7 @@ void sctp_packet_free(struct sctp_packet *packet)
  */
 sctp_xmit_t sctp_packet_transmit_chunk(struct sctp_packet *packet,
 				       struct sctp_chunk *chunk,
-				       int one_packet)
+				       int one_packet, gfp_t gfp)
 {
 	sctp_xmit_t retval;
 	int error = 0;
@@ -163,7 +163,7 @@ sctp_xmit_t sctp_packet_transmit_chunk(struct sctp_packet *packet,
 	switch ((retval = (sctp_packet_append_chunk(packet, chunk)))) {
 	case SCTP_XMIT_PMTU_FULL:
 		if (!packet->has_cookie_echo) {
-			error = sctp_packet_transmit(packet);
+			error = sctp_packet_transmit(packet, gfp);
 			if (error < 0)
 				chunk->skb->sk->sk_err = -error;
 
@@ -376,7 +376,7 @@ static void sctp_packet_set_owner_w(struct sk_buff *skb, struct sock *sk)
  *
  * The return value is a normal kernel error return value.
  */
-int sctp_packet_transmit(struct sctp_packet *packet)
+int sctp_packet_transmit(struct sctp_packet *packet, gfp_t gfp)
 {
 	struct sctp_transport *tp = packet->transport;
 	struct sctp_association *asoc = tp->asoc;
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index c0380cf..f03541d 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -68,7 +68,7 @@ static void sctp_mark_missing(struct sctp_outq *q,
 
 static void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 sack_ctsn);
 
-static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout);
+static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp);
 
 /* Add data to the front of the queue. */
 static inline void sctp_outq_head_data(struct sctp_outq *q,
@@ -285,7 +285,7 @@ void sctp_outq_free(struct sctp_outq *q)
 }
 
 /* Put a new chunk in an sctp_outq.  */
-int sctp_outq_tail(struct sctp_outq *q, struct sctp_chunk *chunk)
+int sctp_outq_tail(struct sctp_outq *q, struct sctp_chunk *chunk, gfp_t gfp)
 {
 	struct net *net = sock_net(q->asoc->base.sk);
 	int error = 0;
@@ -341,7 +341,7 @@ int sctp_outq_tail(struct sctp_outq *q, struct sctp_chunk *chunk)
 		return error;
 
 	if (!q->cork)
-		error = sctp_outq_flush(q, 0);
+		error = sctp_outq_flush(q, 0, gfp);
 
 	return error;
 }
@@ -510,7 +510,7 @@ void sctp_retransmit(struct sctp_outq *q, struct sctp_transport *transport,
 	 * will be flushed at the end.
 	 */
 	if (reason != SCTP_RTXR_FAST_RTX)
-		error = sctp_outq_flush(q, /* rtx_timeout */ 1);
+		error = sctp_outq_flush(q, /* rtx_timeout */ 1, GFP_ATOMIC);
 
 	if (error)
 		q->asoc->base.sk->sk_err = -error;
@@ -601,12 +601,12 @@ redo:
 				 * control chunks are already freed so there
 				 * is nothing we can do.
 				 */
-				sctp_packet_transmit(pkt);
+				sctp_packet_transmit(pkt, GFP_ATOMIC);
 				goto redo;
 			}
 
 			/* Send this packet.  */
-			error = sctp_packet_transmit(pkt);
+			error = sctp_packet_transmit(pkt, GFP_ATOMIC);
 
 			/* If we are retransmitting, we should only
 			 * send a single packet.
@@ -622,7 +622,7 @@ redo:
 
 		case SCTP_XMIT_RWND_FULL:
 			/* Send this packet. */
-			error = sctp_packet_transmit(pkt);
+			error = sctp_packet_transmit(pkt, GFP_ATOMIC);
 
 			/* Stop sending DATA as there is no more room
 			 * at the receiver.
@@ -632,7 +632,7 @@ redo:
 
 		case SCTP_XMIT_DELAY:
 			/* Send this packet. */
-			error = sctp_packet_transmit(pkt);
+			error = sctp_packet_transmit(pkt, GFP_ATOMIC);
 
 			/* Stop sending DATA because of nagle delay. */
 			done = 1;
@@ -685,12 +685,12 @@ redo:
 }
 
 /* Cork the outqueue so queued chunks are really queued. */
-int sctp_outq_uncork(struct sctp_outq *q)
+int sctp_outq_uncork(struct sctp_outq *q, gfp_t gfp)
 {
 	if (q->cork)
 		q->cork = 0;
 
-	return sctp_outq_flush(q, 0);
+	return sctp_outq_flush(q, 0, gfp);
 }
 
 
@@ -703,7 +703,7 @@ int sctp_outq_uncork(struct sctp_outq *q)
  * locking concerns must be made.  Today we use the sock lock to protect
  * this function.
  */
-static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
+static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp)
 {
 	struct sctp_packet *packet;
 	struct sctp_packet singleton;
@@ -825,7 +825,7 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 			sctp_packet_init(&singleton, transport, sport, dport);
 			sctp_packet_config(&singleton, vtag, 0);
 			sctp_packet_append_chunk(&singleton, chunk);
-			error = sctp_packet_transmit(&singleton);
+			error = sctp_packet_transmit(&singleton, gfp);
 			if (error < 0)
 				return error;
 			break;
@@ -856,7 +856,7 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 		case SCTP_CID_ASCONF:
 		case SCTP_CID_FWD_TSN:
 			status = sctp_packet_transmit_chunk(packet, chunk,
-							    one_packet);
+							    one_packet, gfp);
 			if (status  != SCTP_XMIT_OK) {
 				/* put the chunk back */
 				list_add(&chunk->list, &q->control_chunk_list);
@@ -1011,7 +1011,7 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 				 atomic_read(&chunk->skb->users) : -1);
 
 			/* Add the chunk to the packet.  */
-			status = sctp_packet_transmit_chunk(packet, chunk, 0);
+			status = sctp_packet_transmit_chunk(packet, chunk, 0, gfp);
 
 			switch (status) {
 			case SCTP_XMIT_PMTU_FULL:
@@ -1088,7 +1088,7 @@ sctp_flush_out:
 						      send_ready);
 		packet = &t->packet;
 		if (!sctp_packet_empty(packet))
-			error = sctp_packet_transmit(packet);
+			error = sctp_packet_transmit(packet, gfp);
 
 		/* Clear the burst limited state, if any */
 		sctp_transport_burst_reset(t);
diff --git a/net/sctp/probe.c b/net/sctp/probe.c
index 5e68b94..6cc2152 100644
--- a/net/sctp/probe.c
+++ b/net/sctp/probe.c
@@ -65,7 +65,7 @@ static struct {
 	struct kfifo	  fifo;
 	spinlock_t	  lock;
 	wait_queue_head_t wait;
-	struct timespec	  tstart;
+	struct timespec64 tstart;
 } sctpw;
 
 static __printf(1, 2) void printl(const char *fmt, ...)
@@ -85,7 +85,7 @@ static __printf(1, 2) void printl(const char *fmt, ...)
 static int sctpprobe_open(struct inode *inode, struct file *file)
 {
 	kfifo_reset(&sctpw.fifo);
-	getnstimeofday(&sctpw.tstart);
+	ktime_get_ts64(&sctpw.tstart);
 
 	return 0;
 }
@@ -138,7 +138,7 @@ static sctp_disposition_t jsctp_sf_eat_sack(struct net *net,
 	struct sk_buff *skb = chunk->skb;
 	struct sctp_transport *sp;
 	static __u32 lcwnd = 0;
-	struct timespec now;
+	struct timespec64 now;
 
 	sp = asoc->peer.primary_path;
 
@@ -149,8 +149,8 @@ static sctp_disposition_t jsctp_sf_eat_sack(struct net *net,
 	    (full || sp->cwnd != lcwnd)) {
 		lcwnd = sp->cwnd;
 
-		getnstimeofday(&now);
-		now = timespec_sub(now, sctpw.tstart);
+		ktime_get_ts64(&now);
+		now = timespec64_sub(now, sctpw.tstart);
 
 		printl("%lu.%06lu ", (unsigned long) now.tv_sec,
 		       (unsigned long) now.tv_nsec / NSEC_PER_USEC);
diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index 963dffc..5cfac8d 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -161,7 +161,6 @@ static void sctp_seq_dump_remote_addrs(struct seq_file *seq, struct sctp_associa
 	struct sctp_af *af;
 
 	primary = &assoc->peer.primary_addr;
-	rcu_read_lock();
 	list_for_each_entry_rcu(transport, &assoc->peer.transport_addr_list,
 			transports) {
 		addr = &transport->ipaddr;
@@ -172,7 +171,6 @@ static void sctp_seq_dump_remote_addrs(struct seq_file *seq, struct sctp_associa
 		}
 		af->seq_dump_addr(seq, addr);
 	}
-	rcu_read_unlock();
 }
 
 static void *sctp_eps_seq_start(struct seq_file *seq, loff_t *pos)
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 7fe971e..7f0bf79 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -45,6 +45,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <crypto/hash.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/ip.h>
@@ -52,7 +53,6 @@
 #include <linux/net.h>
 #include <linux/inet.h>
 #include <linux/scatterlist.h>
-#include <linux/crypto.h>
 #include <linux/slab.h>
 #include <net/sock.h>
 
@@ -62,11 +62,13 @@
 #include <net/sctp/sm.h>
 
 static struct sctp_chunk *sctp_make_control(const struct sctp_association *asoc,
-					    __u8 type, __u8 flags, int paylen);
+					    __u8 type, __u8 flags, int paylen,
+					    gfp_t gfp);
 static struct sctp_chunk *sctp_make_data(const struct sctp_association *asoc,
-					 __u8 flags, int paylen);
+					 __u8 flags, int paylen, gfp_t gfp);
 static struct sctp_chunk *_sctp_make_chunk(const struct sctp_association *asoc,
-					   __u8 type, __u8 flags, int paylen);
+					   __u8 type, __u8 flags, int paylen,
+					   gfp_t gfp);
 static sctp_cookie_param_t *sctp_pack_cookie(const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const struct sctp_chunk *init_chunk,
@@ -318,7 +320,7 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
 	 * PLEASE DO NOT FIXME [This version does not support Host Name.]
 	 */
 
-	retval = sctp_make_control(asoc, SCTP_CID_INIT, 0, chunksize);
+	retval = sctp_make_control(asoc, SCTP_CID_INIT, 0, chunksize, gfp);
 	if (!retval)
 		goto nodata;
 
@@ -465,7 +467,7 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
 					num_ext);
 
 	/* Now allocate and fill out the chunk.  */
-	retval = sctp_make_control(asoc, SCTP_CID_INIT_ACK, 0, chunksize);
+	retval = sctp_make_control(asoc, SCTP_CID_INIT_ACK, 0, chunksize, gfp);
 	if (!retval)
 		goto nomem_chunk;
 
@@ -570,7 +572,8 @@ struct sctp_chunk *sctp_make_cookie_echo(const struct sctp_association *asoc,
 	cookie_len = asoc->peer.cookie_len;
 
 	/* Build a cookie echo chunk.  */
-	retval = sctp_make_control(asoc, SCTP_CID_COOKIE_ECHO, 0, cookie_len);
+	retval = sctp_make_control(asoc, SCTP_CID_COOKIE_ECHO, 0,
+				   cookie_len, GFP_ATOMIC);
 	if (!retval)
 		goto nodata;
 	retval->subh.cookie_hdr =
@@ -615,7 +618,7 @@ struct sctp_chunk *sctp_make_cookie_ack(const struct sctp_association *asoc,
 {
 	struct sctp_chunk *retval;
 
-	retval = sctp_make_control(asoc, SCTP_CID_COOKIE_ACK, 0, 0);
+	retval = sctp_make_control(asoc, SCTP_CID_COOKIE_ACK, 0, 0, GFP_ATOMIC);
 
 	/* RFC 2960 6.4 Multi-homed SCTP Endpoints
 	 *
@@ -664,7 +667,7 @@ struct sctp_chunk *sctp_make_cwr(const struct sctp_association *asoc,
 
 	cwr.lowest_tsn = htonl(lowest_tsn);
 	retval = sctp_make_control(asoc, SCTP_CID_ECN_CWR, 0,
-				   sizeof(sctp_cwrhdr_t));
+				   sizeof(sctp_cwrhdr_t), GFP_ATOMIC);
 
 	if (!retval)
 		goto nodata;
@@ -698,7 +701,7 @@ struct sctp_chunk *sctp_make_ecne(const struct sctp_association *asoc,
 
 	ecne.lowest_tsn = htonl(lowest_tsn);
 	retval = sctp_make_control(asoc, SCTP_CID_ECN_ECNE, 0,
-				   sizeof(sctp_ecnehdr_t));
+				   sizeof(sctp_ecnehdr_t), GFP_ATOMIC);
 	if (!retval)
 		goto nodata;
 	retval->subh.ecne_hdr =
@@ -713,7 +716,8 @@ nodata:
  */
 struct sctp_chunk *sctp_make_datafrag_empty(struct sctp_association *asoc,
 				       const struct sctp_sndrcvinfo *sinfo,
-				       int data_len, __u8 flags, __u16 ssn)
+				       int data_len, __u8 flags, __u16 ssn,
+				       gfp_t gfp)
 {
 	struct sctp_chunk *retval;
 	struct sctp_datahdr dp;
@@ -734,7 +738,7 @@ struct sctp_chunk *sctp_make_datafrag_empty(struct sctp_association *asoc,
 		dp.ssn = htons(ssn);
 
 	chunk_len = sizeof(dp) + data_len;
-	retval = sctp_make_data(asoc, flags, chunk_len);
+	retval = sctp_make_data(asoc, flags, chunk_len, gfp);
 	if (!retval)
 		goto nodata;
 
@@ -781,7 +785,7 @@ struct sctp_chunk *sctp_make_sack(const struct sctp_association *asoc)
 		+ sizeof(__u32) * num_dup_tsns;
 
 	/* Create the chunk.  */
-	retval = sctp_make_control(asoc, SCTP_CID_SACK, 0, len);
+	retval = sctp_make_control(asoc, SCTP_CID_SACK, 0, len, GFP_ATOMIC);
 	if (!retval)
 		goto nodata;
 
@@ -861,7 +865,7 @@ struct sctp_chunk *sctp_make_shutdown(const struct sctp_association *asoc,
 	shut.cum_tsn_ack = htonl(ctsn);
 
 	retval = sctp_make_control(asoc, SCTP_CID_SHUTDOWN, 0,
-				   sizeof(sctp_shutdownhdr_t));
+				   sizeof(sctp_shutdownhdr_t), GFP_ATOMIC);
 	if (!retval)
 		goto nodata;
 
@@ -879,7 +883,8 @@ struct sctp_chunk *sctp_make_shutdown_ack(const struct sctp_association *asoc,
 {
 	struct sctp_chunk *retval;
 
-	retval = sctp_make_control(asoc, SCTP_CID_SHUTDOWN_ACK, 0, 0);
+	retval = sctp_make_control(asoc, SCTP_CID_SHUTDOWN_ACK, 0, 0,
+				   GFP_ATOMIC);
 
 	/* RFC 2960 6.4 Multi-homed SCTP Endpoints
 	 *
@@ -908,7 +913,8 @@ struct sctp_chunk *sctp_make_shutdown_complete(
 	 */
 	flags |= asoc ? 0 : SCTP_CHUNK_FLAG_T;
 
-	retval = sctp_make_control(asoc, SCTP_CID_SHUTDOWN_COMPLETE, flags, 0);
+	retval = sctp_make_control(asoc, SCTP_CID_SHUTDOWN_COMPLETE, flags,
+				   0, GFP_ATOMIC);
 
 	/* RFC 2960 6.4 Multi-homed SCTP Endpoints
 	 *
@@ -947,7 +953,8 @@ struct sctp_chunk *sctp_make_abort(const struct sctp_association *asoc,
 			flags = SCTP_CHUNK_FLAG_T;
 	}
 
-	retval = sctp_make_control(asoc, SCTP_CID_ABORT, flags, hint);
+	retval = sctp_make_control(asoc, SCTP_CID_ABORT, flags, hint,
+				   GFP_ATOMIC);
 
 	/* RFC 2960 6.4 Multi-homed SCTP Endpoints
 	 *
@@ -1139,7 +1146,8 @@ struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *asoc,
 	struct sctp_chunk *retval;
 	sctp_sender_hb_info_t hbinfo;
 
-	retval = sctp_make_control(asoc, SCTP_CID_HEARTBEAT, 0, sizeof(hbinfo));
+	retval = sctp_make_control(asoc, SCTP_CID_HEARTBEAT, 0,
+				   sizeof(hbinfo), GFP_ATOMIC);
 
 	if (!retval)
 		goto nodata;
@@ -1167,7 +1175,8 @@ struct sctp_chunk *sctp_make_heartbeat_ack(const struct sctp_association *asoc,
 {
 	struct sctp_chunk *retval;
 
-	retval  = sctp_make_control(asoc, SCTP_CID_HEARTBEAT_ACK, 0, paylen);
+	retval  = sctp_make_control(asoc, SCTP_CID_HEARTBEAT_ACK, 0, paylen,
+				    GFP_ATOMIC);
 	if (!retval)
 		goto nodata;
 
@@ -1200,7 +1209,7 @@ static struct sctp_chunk *sctp_make_op_error_space(
 	struct sctp_chunk *retval;
 
 	retval = sctp_make_control(asoc, SCTP_CID_ERROR, 0,
-				   sizeof(sctp_errhdr_t) + size);
+				   sizeof(sctp_errhdr_t) + size, GFP_ATOMIC);
 	if (!retval)
 		goto nodata;
 
@@ -1271,7 +1280,8 @@ struct sctp_chunk *sctp_make_auth(const struct sctp_association *asoc)
 		return NULL;
 
 	retval = sctp_make_control(asoc, SCTP_CID_AUTH, 0,
-			hmac_desc->hmac_len + sizeof(sctp_authhdr_t));
+			hmac_desc->hmac_len + sizeof(sctp_authhdr_t),
+			GFP_ATOMIC);
 	if (!retval)
 		return NULL;
 
@@ -1309,11 +1319,11 @@ struct sctp_chunk *sctp_make_auth(const struct sctp_association *asoc)
  */
 struct sctp_chunk *sctp_chunkify(struct sk_buff *skb,
 			    const struct sctp_association *asoc,
-			    struct sock *sk)
+			    struct sock *sk, gfp_t gfp)
 {
 	struct sctp_chunk *retval;
 
-	retval = kmem_cache_zalloc(sctp_chunk_cachep, GFP_ATOMIC);
+	retval = kmem_cache_zalloc(sctp_chunk_cachep, gfp);
 
 	if (!retval)
 		goto nodata;
@@ -1361,7 +1371,8 @@ const union sctp_addr *sctp_source(const struct sctp_chunk *chunk)
  * arguments, reserving enough space for a 'paylen' byte payload.
  */
 static struct sctp_chunk *_sctp_make_chunk(const struct sctp_association *asoc,
-					    __u8 type, __u8 flags, int paylen)
+					    __u8 type, __u8 flags, int paylen,
+					    gfp_t gfp)
 {
 	struct sctp_chunk *retval;
 	sctp_chunkhdr_t *chunk_hdr;
@@ -1369,8 +1380,7 @@ static struct sctp_chunk *_sctp_make_chunk(const struct sctp_association *asoc,
 	struct sock *sk;
 
 	/* No need to allocate LL here, as this is only a chunk. */
-	skb = alloc_skb(WORD_ROUND(sizeof(sctp_chunkhdr_t) + paylen),
-			GFP_ATOMIC);
+	skb = alloc_skb(WORD_ROUND(sizeof(sctp_chunkhdr_t) + paylen), gfp);
 	if (!skb)
 		goto nodata;
 
@@ -1381,7 +1391,7 @@ static struct sctp_chunk *_sctp_make_chunk(const struct sctp_association *asoc,
 	chunk_hdr->length = htons(sizeof(sctp_chunkhdr_t));
 
 	sk = asoc ? asoc->base.sk : NULL;
-	retval = sctp_chunkify(skb, asoc, sk);
+	retval = sctp_chunkify(skb, asoc, sk, gfp);
 	if (!retval) {
 		kfree_skb(skb);
 		goto nodata;
@@ -1400,16 +1410,18 @@ nodata:
 }
 
 static struct sctp_chunk *sctp_make_data(const struct sctp_association *asoc,
-					 __u8 flags, int paylen)
+					 __u8 flags, int paylen, gfp_t gfp)
 {
-	return _sctp_make_chunk(asoc, SCTP_CID_DATA, flags, paylen);
+	return _sctp_make_chunk(asoc, SCTP_CID_DATA, flags, paylen, gfp);
 }
 
 static struct sctp_chunk *sctp_make_control(const struct sctp_association *asoc,
-					    __u8 type, __u8 flags, int paylen)
+					    __u8 type, __u8 flags, int paylen,
+					    gfp_t gfp)
 {
-	struct sctp_chunk *chunk = _sctp_make_chunk(asoc, type, flags, paylen);
+	struct sctp_chunk *chunk;
 
+	chunk = _sctp_make_chunk(asoc, type, flags, paylen, gfp);
 	if (chunk)
 		sctp_control_set_owner_w(chunk);
 
@@ -1606,7 +1618,6 @@ static sctp_cookie_param_t *sctp_pack_cookie(const struct sctp_endpoint *ep,
 {
 	sctp_cookie_param_t *retval;
 	struct sctp_signed_cookie *cookie;
-	struct scatterlist sg;
 	int headersize, bodysize;
 
 	/* Header size is static data prior to the actual cookie, including
@@ -1663,16 +1674,19 @@ static sctp_cookie_param_t *sctp_pack_cookie(const struct sctp_endpoint *ep,
 	       ntohs(init_chunk->chunk_hdr->length), raw_addrs, addrs_len);
 
 	if (sctp_sk(ep->base.sk)->hmac) {
-		struct hash_desc desc;
+		SHASH_DESC_ON_STACK(desc, sctp_sk(ep->base.sk)->hmac);
+		int err;
 
 		/* Sign the message.  */
-		sg_init_one(&sg, &cookie->c, bodysize);
-		desc.tfm = sctp_sk(ep->base.sk)->hmac;
-		desc.flags = 0;
-
-		if (crypto_hash_setkey(desc.tfm, ep->secret_key,
-				       sizeof(ep->secret_key)) ||
-		    crypto_hash_digest(&desc, &sg, bodysize, cookie->signature))
+		desc->tfm = sctp_sk(ep->base.sk)->hmac;
+		desc->flags = 0;
+
+		err = crypto_shash_setkey(desc->tfm, ep->secret_key,
+					  sizeof(ep->secret_key)) ?:
+		      crypto_shash_digest(desc, (u8 *)&cookie->c, bodysize,
+					  cookie->signature);
+		shash_desc_zero(desc);
+		if (err)
 			goto free_cookie;
 	}
 
@@ -1697,12 +1711,10 @@ struct sctp_association *sctp_unpack_cookie(
 	struct sctp_cookie *bear_cookie;
 	int headersize, bodysize, fixed_size;
 	__u8 *digest = ep->digest;
-	struct scatterlist sg;
 	unsigned int len;
 	sctp_scope_t scope;
 	struct sk_buff *skb = chunk->skb;
 	ktime_t kt;
-	struct hash_desc desc;
 
 	/* Header size is static data prior to the actual cookie, including
 	 * any padding.
@@ -1733,16 +1745,23 @@ struct sctp_association *sctp_unpack_cookie(
 		goto no_hmac;
 
 	/* Check the signature.  */
-	sg_init_one(&sg, bear_cookie, bodysize);
-	desc.tfm = sctp_sk(ep->base.sk)->hmac;
-	desc.flags = 0;
-
-	memset(digest, 0x00, SCTP_SIGNATURE_SIZE);
-	if (crypto_hash_setkey(desc.tfm, ep->secret_key,
-			       sizeof(ep->secret_key)) ||
-	    crypto_hash_digest(&desc, &sg, bodysize, digest)) {
-		*error = -SCTP_IERROR_NOMEM;
-		goto fail;
+	{
+		SHASH_DESC_ON_STACK(desc, sctp_sk(ep->base.sk)->hmac);
+		int err;
+
+		desc->tfm = sctp_sk(ep->base.sk)->hmac;
+		desc->flags = 0;
+
+		err = crypto_shash_setkey(desc->tfm, ep->secret_key,
+					  sizeof(ep->secret_key)) ?:
+		      crypto_shash_digest(desc, (u8 *)bear_cookie, bodysize,
+					  digest);
+		shash_desc_zero(desc);
+
+		if (err) {
+			*error = -SCTP_IERROR_NOMEM;
+			goto fail;
+		}
 	}
 
 	if (memcmp(digest, cookie->signature, SCTP_SIGNATURE_SIZE)) {
@@ -2757,7 +2776,8 @@ static struct sctp_chunk *sctp_make_asconf(struct sctp_association *asoc,
 	length += addrlen;
 
 	/* Create the chunk.  */
-	retval = sctp_make_control(asoc, SCTP_CID_ASCONF, 0, length);
+	retval = sctp_make_control(asoc, SCTP_CID_ASCONF, 0, length,
+				   GFP_ATOMIC);
 	if (!retval)
 		return NULL;
 
@@ -2941,7 +2961,8 @@ static struct sctp_chunk *sctp_make_asconf_ack(const struct sctp_association *as
 	int			length = sizeof(asconf) + vparam_len;
 
 	/* Create the chunk.  */
-	retval = sctp_make_control(asoc, SCTP_CID_ASCONF_ACK, 0, length);
+	retval = sctp_make_control(asoc, SCTP_CID_ASCONF_ACK, 0, length,
+				   GFP_ATOMIC);
 	if (!retval)
 		return NULL;
 
@@ -3501,7 +3522,7 @@ struct sctp_chunk *sctp_make_fwdtsn(const struct sctp_association *asoc,
 
 	hint = (nstreams + 1) * sizeof(__u32);
 
-	retval = sctp_make_control(asoc, SCTP_CID_FWD_TSN, 0, hint);
+	retval = sctp_make_control(asoc, SCTP_CID_FWD_TSN, 0, hint, GFP_ATOMIC);
 
 	if (!retval)
 		return NULL;
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index b5327bb..3c22c41 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -1019,13 +1019,13 @@ static void sctp_cmd_t1_timer_update(struct sctp_association *asoc,
  * encouraged for small fragments.
  */
 static int sctp_cmd_send_msg(struct sctp_association *asoc,
-				struct sctp_datamsg *msg)
+				struct sctp_datamsg *msg, gfp_t gfp)
 {
 	struct sctp_chunk *chunk;
 	int error = 0;
 
 	list_for_each_entry(chunk, &msg->chunks, frag_list) {
-		error = sctp_outq_tail(&asoc->outqueue, chunk);
+		error = sctp_outq_tail(&asoc->outqueue, chunk, gfp);
 		if (error)
 			break;
 	}
@@ -1249,7 +1249,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 		case SCTP_CMD_NEW_ASOC:
 			/* Register a new association.  */
 			if (local_cork) {
-				sctp_outq_uncork(&asoc->outqueue);
+				sctp_outq_uncork(&asoc->outqueue, gfp);
 				local_cork = 0;
 			}
 
@@ -1269,7 +1269,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 
 		case SCTP_CMD_DELETE_TCB:
 			if (local_cork) {
-				sctp_outq_uncork(&asoc->outqueue);
+				sctp_outq_uncork(&asoc->outqueue, gfp);
 				local_cork = 0;
 			}
 			/* Delete the current association.  */
@@ -1423,13 +1423,14 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 				local_cork = 1;
 			}
 			/* Send a chunk to our peer.  */
-			error = sctp_outq_tail(&asoc->outqueue, cmd->obj.chunk);
+			error = sctp_outq_tail(&asoc->outqueue, cmd->obj.chunk,
+					       gfp);
 			break;
 
 		case SCTP_CMD_SEND_PKT:
 			/* Send a full packet to our peer.  */
 			packet = cmd->obj.packet;
-			sctp_packet_transmit(packet);
+			sctp_packet_transmit(packet, gfp);
 			sctp_ootb_pkt_free(packet);
 			break;
 
@@ -1639,7 +1640,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 			 */
 			chunk->pdiscard = 1;
 			if (asoc) {
-				sctp_outq_uncork(&asoc->outqueue);
+				sctp_outq_uncork(&asoc->outqueue, gfp);
 				local_cork = 0;
 			}
 			break;
@@ -1677,7 +1678,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 		case SCTP_CMD_FORCE_PRIM_RETRAN:
 			t = asoc->peer.retran_path;
 			asoc->peer.retran_path = asoc->peer.primary_path;
-			error = sctp_outq_uncork(&asoc->outqueue);
+			error = sctp_outq_uncork(&asoc->outqueue, gfp);
 			local_cork = 0;
 			asoc->peer.retran_path = t;
 			break;
@@ -1704,7 +1705,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 				sctp_outq_cork(&asoc->outqueue);
 				local_cork = 1;
 			}
-			error = sctp_cmd_send_msg(asoc, cmd->obj.msg);
+			error = sctp_cmd_send_msg(asoc, cmd->obj.msg, gfp);
 			break;
 		case SCTP_CMD_SEND_NEXT_ASCONF:
 			sctp_cmd_send_asconf(asoc);
@@ -1734,9 +1735,9 @@ out:
 	 */
 	if (asoc && SCTP_EVENT_T_CHUNK == event_type && chunk) {
 		if (chunk->end_of_packet || chunk->singleton)
-			error = sctp_outq_uncork(&asoc->outqueue);
+			error = sctp_outq_uncork(&asoc->outqueue, gfp);
 	} else if (local_cork)
-		error = sctp_outq_uncork(&asoc->outqueue);
+		error = sctp_outq_uncork(&asoc->outqueue, gfp);
 	return error;
 nomem:
 	error = -ENOMEM;
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 0e3de0c..a44a97c 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -52,6 +52,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <crypto/hash.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/wait.h>
@@ -61,7 +62,6 @@
 #include <linux/fcntl.h>
 #include <linux/poll.h>
 #include <linux/init.h>
-#include <linux/crypto.h>
 #include <linux/slab.h>
 #include <linux/file.h>
 #include <linux/compat.h>
@@ -4162,7 +4162,7 @@ static void sctp_destruct_sock(struct sock *sk)
 	struct sctp_sock *sp = sctp_sk(sk);
 
 	/* Free up the HMAC transform. */
-	crypto_free_hash(sp->hmac);
+	crypto_free_shash(sp->hmac);
 
 	inet_sock_destruct(sk);
 }
@@ -6108,9 +6108,10 @@ static int sctp_getsockopt(struct sock *sk, int level, int optname,
 	return retval;
 }
 
-static void sctp_hash(struct sock *sk)
+static int sctp_hash(struct sock *sk)
 {
 	/* STUB */
+	return 0;
 }
 
 static void sctp_unhash(struct sock *sk)
@@ -6306,13 +6307,13 @@ static int sctp_listen_start(struct sock *sk, int backlog)
 {
 	struct sctp_sock *sp = sctp_sk(sk);
 	struct sctp_endpoint *ep = sp->ep;
-	struct crypto_hash *tfm = NULL;
+	struct crypto_shash *tfm = NULL;
 	char alg[32];
 
 	/* Allocate HMAC for generating cookie. */
 	if (!sp->hmac && sp->sctp_hmac_alg) {
 		sprintf(alg, "hmac(%s)", sp->sctp_hmac_alg);
-		tfm = crypto_alloc_hash(alg, 0, CRYPTO_ALG_ASYNC);
+		tfm = crypto_alloc_shash(alg, 0, 0);
 		if (IS_ERR(tfm)) {
 			net_info_ratelimited("failed to load transform for %s: %ld\n",
 					     sp->sctp_hmac_alg, PTR_ERR(tfm));
@@ -7255,14 +7256,12 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
 	/* Hook this new socket in to the bind_hash list. */
 	head = &sctp_port_hashtable[sctp_phashfn(sock_net(oldsk),
 						 inet_sk(oldsk)->inet_num)];
-	local_bh_disable();
-	spin_lock(&head->lock);
+	spin_lock_bh(&head->lock);
 	pp = sctp_sk(oldsk)->bind_hash;
 	sk_add_bind_node(newsk, &pp->owner);
 	sctp_sk(newsk)->bind_hash = pp;
 	inet_sk(newsk)->inet_num = inet_sk(oldsk)->inet_num;
-	spin_unlock(&head->lock);
-	local_bh_enable();
+	spin_unlock_bh(&head->lock);
 
 	/* Copy the bind_addr list from the original endpoint to the new
 	 * endpoint so that we can handle restarts properly
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index a431c14..d517153 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -72,7 +72,7 @@ static struct sctp_transport *sctp_transport_init(struct net *net,
 	 */
 	peer->rto = msecs_to_jiffies(net->sctp.rto_initial);
 
-	peer->last_time_heard = ktime_get();
+	peer->last_time_heard = ktime_set(0, 0);
 	peer->last_time_ecne_reduced = jiffies;
 
 	peer->param_flags = SPP_HB_DISABLE |