Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits)
  mac80211: fix reorder buffer release
  iwmc3200wifi: Enable wimax core through module parameter
  iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter
  iwmc3200wifi: Coex table command does not expect a response
  iwmc3200wifi: Update wiwi priority table
  iwlwifi: driver version track kernel version
  iwlwifi: indicate uCode type when fail dump error/event log
  iwl3945: remove duplicated event logging code
  b43: fix two warnings
  ipw2100: fix rebooting hang with driver loaded
  cfg80211: indent regulatory messages with spaces
  iwmc3200wifi: fix NULL pointer dereference in pmkid update
  mac80211: Fix TX status reporting for injected data frames
  ath9k: enable 2GHz band only if the device supports it
  airo: Fix integer overflow warning
  rt2x00: Fix padding bug on L2PAD devices.
  WE: Fix set events not propagated
  b43legacy: avoid PPC fault during resume
  b43: avoid PPC fault during resume
  tcp: fix a timewait refcnt race
  ...

Fix up conflicts due to sysctl cleanups (dead sysctl_check code and
CTL_UNNUMBERED removed) in
	kernel/sysctl_check.c
	net/ipv4/sysctl_net_ipv4.c
	net/ipv6/addrconf.c
	net/sctp/sysctl.c

62 files changed, 2207 insertions, 1027 deletions

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 57737b8d171..7d12c6a9b19 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -174,12 +174,12 @@ static int inet_autobind(struct sock *sk)
 	/* We may need to bind the socket. */
 	lock_sock(sk);
 	inet = inet_sk(sk);
-	if (!inet->num) {
+	if (!inet->inet_num) {
 		if (sk->sk_prot->get_port(sk, 0)) {
 			release_sock(sk);
 			return -EAGAIN;
 		}
-		inet->sport = htons(inet->num);
+		inet->inet_sport = htons(inet->inet_num);
 	}
 	release_sock(sk);
 	return 0;
@@ -262,7 +262,8 @@ static inline int inet_netns_ok(struct net *net, int protocol)
  *	Create an inet socket.
  */
 
-static int inet_create(struct net *net, struct socket *sock, int protocol)
+static int inet_create(struct net *net, struct socket *sock, int protocol,
+		       int kern)
 {
 	struct sock *sk;
 	struct inet_protosw *answer;
@@ -325,7 +326,7 @@ lookup_protocol:
 	}
 
 	err = -EPERM;
-	if (answer->capability > 0 && !capable(answer->capability))
+	if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
 		goto out_rcu_unlock;
 
 	err = -EAFNOSUPPORT;
@@ -354,7 +355,7 @@ lookup_protocol:
 	inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0;
 
 	if (SOCK_RAW == sock->type) {
-		inet->num = protocol;
+		inet->inet_num = protocol;
 		if (IPPROTO_RAW == protocol)
 			inet->hdrincl = 1;
 	}
@@ -364,7 +365,7 @@ lookup_protocol:
 	else
 		inet->pmtudisc = IP_PMTUDISC_WANT;
 
-	inet->id = 0;
+	inet->inet_id = 0;
 
 	sock_init_data(sock, sk);
 
@@ -381,13 +382,13 @@ lookup_protocol:
 
 	sk_refcnt_debug_inc(sk);
 
-	if (inet->num) {
+	if (inet->inet_num) {
 		/* It assumes that any protocol which allows
 		 * the user to assign a number at socket
 		 * creation time automatically
 		 * shares.
 		 */
-		inet->sport = htons(inet->num);
+		inet->inet_sport = htons(inet->inet_num);
 		/* Add to protocol hash chains. */
 		sk->sk_prot->hash(sk);
 	}
@@ -494,27 +495,27 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 
 	/* Check these errors (active socket, double bind). */
 	err = -EINVAL;
-	if (sk->sk_state != TCP_CLOSE || inet->num)
+	if (sk->sk_state != TCP_CLOSE || inet->inet_num)
 		goto out_release_sock;
 
-	inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr;
+	inet->inet_rcv_saddr = inet->inet_saddr = addr->sin_addr.s_addr;
 	if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
-		inet->saddr = 0;  /* Use device */
+		inet->inet_saddr = 0;  /* Use device */
 
 	/* Make sure we are allowed to bind here. */
 	if (sk->sk_prot->get_port(sk, snum)) {
-		inet->saddr = inet->rcv_saddr = 0;
+		inet->inet_saddr = inet->inet_rcv_saddr = 0;
 		err = -EADDRINUSE;
 		goto out_release_sock;
 	}
 
-	if (inet->rcv_saddr)
+	if (inet->inet_rcv_saddr)
 		sk->sk_userlocks |= SOCK_BINDADDR_LOCK;
 	if (snum)
 		sk->sk_userlocks |= SOCK_BINDPORT_LOCK;
-	inet->sport = htons(inet->num);
-	inet->daddr = 0;
-	inet->dport = 0;
+	inet->inet_sport = htons(inet->inet_num);
+	inet->inet_daddr = 0;
+	inet->inet_dport = 0;
 	sk_dst_reset(sk);
 	err = 0;
 out_release_sock:
@@ -532,7 +533,7 @@ int inet_dgram_connect(struct socket *sock, struct sockaddr * uaddr,
 	if (uaddr->sa_family == AF_UNSPEC)
 		return sk->sk_prot->disconnect(sk, flags);
 
-	if (!inet_sk(sk)->num && inet_autobind(sk))
+	if (!inet_sk(sk)->inet_num && inet_autobind(sk))
 		return -EAGAIN;
 	return sk->sk_prot->connect(sk, (struct sockaddr *)uaddr, addr_len);
 }
@@ -685,21 +686,21 @@ int inet_getname(struct socket *sock, struct sockaddr *uaddr,
 {
 	struct sock *sk		= sock->sk;
 	struct inet_sock *inet	= inet_sk(sk);
-	struct sockaddr_in *sin	= (struct sockaddr_in *)uaddr;
+	DECLARE_SOCKADDR(struct sockaddr_in *, sin, uaddr);
 
 	sin->sin_family = AF_INET;
 	if (peer) {
-		if (!inet->dport ||
+		if (!inet->inet_dport ||
 		    (((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_SYN_SENT)) &&
 		     peer == 1))
 			return -ENOTCONN;
-		sin->sin_port = inet->dport;
-		sin->sin_addr.s_addr = inet->daddr;
+		sin->sin_port = inet->inet_dport;
+		sin->sin_addr.s_addr = inet->inet_daddr;
 	} else {
-		__be32 addr = inet->rcv_saddr;
+		__be32 addr = inet->inet_rcv_saddr;
 		if (!addr)
-			addr = inet->saddr;
-		sin->sin_port = inet->sport;
+			addr = inet->inet_saddr;
+		sin->sin_port = inet->inet_sport;
 		sin->sin_addr.s_addr = addr;
 	}
 	memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
@@ -714,7 +715,7 @@ int inet_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
 	struct sock *sk = sock->sk;
 
 	/* We may need to bind the socket. */
-	if (!inet_sk(sk)->num && inet_autobind(sk))
+	if (!inet_sk(sk)->inet_num && inet_autobind(sk))
 		return -EAGAIN;
 
 	return sk->sk_prot->sendmsg(iocb, sk, msg, size);
@@ -728,7 +729,7 @@ static ssize_t inet_sendpage(struct socket *sock, struct page *page, int offset,
 	struct sock *sk = sock->sk;
 
 	/* We may need to bind the socket. */
-	if (!inet_sk(sk)->num && inet_autobind(sk))
+	if (!inet_sk(sk)->inet_num && inet_autobind(sk))
 		return -EAGAIN;
 
 	if (sk->sk_prot->sendpage)
@@ -931,7 +932,7 @@ static const struct proto_ops inet_sockraw_ops = {
 #endif
 };
 
-static struct net_proto_family inet_family_ops = {
+static const struct net_proto_family inet_family_ops = {
 	.family = PF_INET,
 	.create = inet_create,
 	.owner	= THIS_MODULE,
@@ -947,7 +948,6 @@ static struct inet_protosw inetsw_array[] =
 		.protocol =   IPPROTO_TCP,
 		.prot =       &tcp_prot,
 		.ops =        &inet_stream_ops,
-		.capability = -1,
 		.no_check =   0,
 		.flags =      INET_PROTOSW_PERMANENT |
 			      INET_PROTOSW_ICSK,
@@ -958,7 +958,6 @@ static struct inet_protosw inetsw_array[] =
 		.protocol =   IPPROTO_UDP,
 		.prot =       &udp_prot,
 		.ops =        &inet_dgram_ops,
-		.capability = -1,
 		.no_check =   UDP_CSUM_DEFAULT,
 		.flags =      INET_PROTOSW_PERMANENT,
        },
@@ -969,7 +968,6 @@ static struct inet_protosw inetsw_array[] =
 	       .protocol =   IPPROTO_IP,	/* wild card */
 	       .prot =       &raw_prot,
 	       .ops =        &inet_sockraw_ops,
-	       .capability = CAP_NET_RAW,
 	       .no_check =   UDP_CSUM_DEFAULT,
 	       .flags =      INET_PROTOSW_REUSE,
        }
@@ -1059,9 +1057,9 @@ static int inet_sk_reselect_saddr(struct sock *sk)
 	struct inet_sock *inet = inet_sk(sk);
 	int err;
 	struct rtable *rt;
-	__be32 old_saddr = inet->saddr;
+	__be32 old_saddr = inet->inet_saddr;
 	__be32 new_saddr;
-	__be32 daddr = inet->daddr;
+	__be32 daddr = inet->inet_daddr;
 
 	if (inet->opt && inet->opt->srr)
 		daddr = inet->opt->faddr;
@@ -1071,7 +1069,7 @@ static int inet_sk_reselect_saddr(struct sock *sk)
 			       RT_CONN_FLAGS(sk),
 			       sk->sk_bound_dev_if,
 			       sk->sk_protocol,
-			       inet->sport, inet->dport, sk, 0);
+			       inet->inet_sport, inet->inet_dport, sk, 0);
 	if (err)
 		return err;
 
@@ -1087,7 +1085,7 @@ static int inet_sk_reselect_saddr(struct sock *sk)
 		       __func__, &old_saddr, &new_saddr);
 	}
 
-	inet->saddr = inet->rcv_saddr = new_saddr;
+	inet->inet_saddr = inet->inet_rcv_saddr = new_saddr;
 
 	/*
 	 * XXX The only one ugly spot where we need to
@@ -1113,7 +1111,7 @@ int inet_sk_rebuild_header(struct sock *sk)
 		return 0;
 
 	/* Reroute. */
-	daddr = inet->daddr;
+	daddr = inet->inet_daddr;
 	if (inet->opt && inet->opt->srr)
 		daddr = inet->opt->faddr;
 {
@@ -1123,7 +1121,7 @@ int inet_sk_rebuild_header(struct sock *sk)
 		.nl_u = {
 			.ip4_u = {
 				.daddr	= daddr,
-				.saddr	= inet->saddr,
+				.saddr	= inet->inet_saddr,
 				.tos	= RT_CONN_FLAGS(sk),
 			},
 		},
@@ -1131,8 +1129,8 @@ int inet_sk_rebuild_header(struct sock *sk)
 		.flags = inet_sk_flowi_flags(sk),
 		.uli_u = {
 			.ports = {
-				.sport = inet->sport,
-				.dport = inet->dport,
+				.sport = inet->inet_sport,
+				.dport = inet->inet_dport,
 			},
 		},
 	};
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index 5c662703eb1..7ed3e4ae93a 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -1,3 +1,4 @@
+#include <crypto/hash.h>
 #include <linux/err.h>
 #include <linux/module.h>
 #include <net/ip.h>
@@ -5,10 +6,67 @@
 #include <net/ah.h>
 #include <linux/crypto.h>
 #include <linux/pfkeyv2.h>
-#include <linux/spinlock.h>
+#include <linux/scatterlist.h>
 #include <net/icmp.h>
 #include <net/protocol.h>
 
+struct ah_skb_cb {
+	struct xfrm_skb_cb xfrm;
+	void *tmp;
+};
+
+#define AH_SKB_CB(__skb) ((struct ah_skb_cb *)&((__skb)->cb[0]))
+
+static void *ah_alloc_tmp(struct crypto_ahash *ahash, int nfrags,
+			  unsigned int size)
+{
+	unsigned int len;
+
+	len = size + crypto_ahash_digestsize(ahash) +
+	      (crypto_ahash_alignmask(ahash) &
+	       ~(crypto_tfm_ctx_alignment() - 1));
+
+	len = ALIGN(len, crypto_tfm_ctx_alignment());
+
+	len += sizeof(struct ahash_request) + crypto_ahash_reqsize(ahash);
+	len = ALIGN(len, __alignof__(struct scatterlist));
+
+	len += sizeof(struct scatterlist) * nfrags;
+
+	return kmalloc(len, GFP_ATOMIC);
+}
+
+static inline u8 *ah_tmp_auth(void *tmp, unsigned int offset)
+{
+	return tmp + offset;
+}
+
+static inline u8 *ah_tmp_icv(struct crypto_ahash *ahash, void *tmp,
+			     unsigned int offset)
+{
+	return PTR_ALIGN((u8 *)tmp + offset, crypto_ahash_alignmask(ahash) + 1);
+}
+
+static inline struct ahash_request *ah_tmp_req(struct crypto_ahash *ahash,
+					       u8 *icv)
+{
+	struct ahash_request *req;
+
+	req = (void *)PTR_ALIGN(icv + crypto_ahash_digestsize(ahash),
+				crypto_tfm_ctx_alignment());
+
+	ahash_request_set_tfm(req, ahash);
+
+	return req;
+}
+
+static inline struct scatterlist *ah_req_sg(struct crypto_ahash *ahash,
+					     struct ahash_request *req)
+{
+	return (void *)ALIGN((unsigned long)(req + 1) +
+			     crypto_ahash_reqsize(ahash),
+			     __alignof__(struct scatterlist));
+}
 
 /* Clear mutable options and find final destination to substitute
  * into IP header for icv calculation. Options are already checked
@@ -54,20 +112,72 @@ static int ip_clear_mutable_options(struct iphdr *iph, __be32 *daddr)
 	return 0;
 }
 
+static void ah_output_done(struct crypto_async_request *base, int err)
+{
+	u8 *icv;
+	struct iphdr *iph;
+	struct sk_buff *skb = base->data;
+	struct xfrm_state *x = skb_dst(skb)->xfrm;
+	struct ah_data *ahp = x->data;
+	struct iphdr *top_iph = ip_hdr(skb);
+	struct ip_auth_hdr *ah = ip_auth_hdr(skb);
+	int ihl = ip_hdrlen(skb);
+
+	iph = AH_SKB_CB(skb)->tmp;
+	icv = ah_tmp_icv(ahp->ahash, iph, ihl);
+	memcpy(ah->auth_data, icv, ahp->icv_trunc_len);
+
+	top_iph->tos = iph->tos;
+	top_iph->ttl = iph->ttl;
+	top_iph->frag_off = iph->frag_off;
+	if (top_iph->ihl != 5) {
+		top_iph->daddr = iph->daddr;
+		memcpy(top_iph+1, iph+1, top_iph->ihl*4 - sizeof(struct iphdr));
+	}
+
+	err = ah->nexthdr;
+
+	kfree(AH_SKB_CB(skb)->tmp);
+	xfrm_output_resume(skb, err);
+}
+
 static int ah_output(struct xfrm_state *x, struct sk_buff *skb)
 {
 	int err;
+	int nfrags;
+	int ihl;
+	u8 *icv;
+	struct sk_buff *trailer;
+	struct crypto_ahash *ahash;
+	struct ahash_request *req;
+	struct scatterlist *sg;
 	struct iphdr *iph, *top_iph;
 	struct ip_auth_hdr *ah;
 	struct ah_data *ahp;
-	union {
-		struct iphdr	iph;
-		char 		buf[60];
-	} tmp_iph;
+
+	ahp = x->data;
+	ahash = ahp->ahash;
+
+	if ((err = skb_cow_data(skb, 0, &trailer)) < 0)
+		goto out;
+	nfrags = err;
 
 	skb_push(skb, -skb_network_offset(skb));
+	ah = ip_auth_hdr(skb);
+	ihl = ip_hdrlen(skb);
+
+	err = -ENOMEM;
+	iph = ah_alloc_tmp(ahash, nfrags, ihl);
+	if (!iph)
+		goto out;
+
+	icv = ah_tmp_icv(ahash, iph, ihl);
+	req = ah_tmp_req(ahash, icv);
+	sg = ah_req_sg(ahash, req);
+
+	memset(ah->auth_data, 0, ahp->icv_trunc_len);
+
 	top_iph = ip_hdr(skb);
-	iph = &tmp_iph.iph;
 
 	iph->tos = top_iph->tos;
 	iph->ttl = top_iph->ttl;
@@ -78,10 +188,9 @@ static int ah_output(struct xfrm_state *x, struct sk_buff *skb)
 		memcpy(iph+1, top_iph+1, top_iph->ihl*4 - sizeof(struct iphdr));
 		err = ip_clear_mutable_options(top_iph, &top_iph->daddr);
 		if (err)
-			goto error;
+			goto out_free;
 	}
 
-	ah = ip_auth_hdr(skb);
 	ah->nexthdr = *skb_mac_header(skb);
 	*skb_mac_header(skb) = IPPROTO_AH;
 
@@ -91,20 +200,31 @@ static int ah_output(struct xfrm_state *x, struct sk_buff *skb)
 	top_iph->ttl = 0;
 	top_iph->check = 0;
 
-	ahp = x->data;
 	ah->hdrlen  = (XFRM_ALIGN8(sizeof(*ah) + ahp->icv_trunc_len) >> 2) - 2;
 
 	ah->reserved = 0;
 	ah->spi = x->id.spi;
 	ah->seq_no = htonl(XFRM_SKB_CB(skb)->seq.output);
 
-	spin_lock_bh(&x->lock);
-	err = ah_mac_digest(ahp, skb, ah->auth_data);
-	memcpy(ah->auth_data, ahp->work_icv, ahp->icv_trunc_len);
-	spin_unlock_bh(&x->lock);
+	sg_init_table(sg, nfrags);
+	skb_to_sgvec(skb, sg, 0, skb->len);
 
-	if (err)
-		goto error;
+	ahash_request_set_crypt(req, sg, icv, skb->len);
+	ahash_request_set_callback(req, 0, ah_output_done, skb);
+
+	AH_SKB_CB(skb)->tmp = iph;
+
+	err = crypto_ahash_digest(req);
+	if (err) {
+		if (err == -EINPROGRESS)
+			goto out;
+
+		if (err == -EBUSY)
+			err = NET_XMIT_DROP;
+		goto out_free;
+	}
+
+	memcpy(ah->auth_data, icv, ahp->icv_trunc_len);
 
 	top_iph->tos = iph->tos;
 	top_iph->ttl = iph->ttl;
@@ -114,28 +234,67 @@ static int ah_output(struct xfrm_state *x, struct sk_buff *skb)
 		memcpy(top_iph+1, iph+1, top_iph->ihl*4 - sizeof(struct iphdr));
 	}
 
-	err = 0;
-
-error:
+out_free:
+	kfree(iph);
+out:
 	return err;
 }
 
+static void ah_input_done(struct crypto_async_request *base, int err)
+{
+	u8 *auth_data;
+	u8 *icv;
+	struct iphdr *work_iph;
+	struct sk_buff *skb = base->data;
+	struct xfrm_state *x = xfrm_input_state(skb);
+	struct ah_data *ahp = x->data;
+	struct ip_auth_hdr *ah = ip_auth_hdr(skb);
+	int ihl = ip_hdrlen(skb);
+	int ah_hlen = (ah->hdrlen + 2) << 2;
+
+	work_iph = AH_SKB_CB(skb)->tmp;
+	auth_data = ah_tmp_auth(work_iph, ihl);
+	icv = ah_tmp_icv(ahp->ahash, auth_data, ahp->icv_trunc_len);
+
+	err = memcmp(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG: 0;
+	if (err)
+		goto out;
+
+	skb->network_header += ah_hlen;
+	memcpy(skb_network_header(skb), work_iph, ihl);
+	__skb_pull(skb, ah_hlen + ihl);
+	skb_set_transport_header(skb, -ihl);
+
+	err = ah->nexthdr;
+out:
+	kfree(AH_SKB_CB(skb)->tmp);
+	xfrm_input_resume(skb, err);
+}
+
 static int ah_input(struct xfrm_state *x, struct sk_buff *skb)
 {
 	int ah_hlen;
 	int ihl;
 	int nexthdr;
-	int err = -EINVAL;
-	struct iphdr *iph;
+	int nfrags;
+	u8 *auth_data;
+	u8 *icv;
+	struct sk_buff *trailer;
+	struct crypto_ahash *ahash;
+	struct ahash_request *req;
+	struct scatterlist *sg;
+	struct iphdr *iph, *work_iph;
 	struct ip_auth_hdr *ah;
 	struct ah_data *ahp;
-	char work_buf[60];
+	int err = -ENOMEM;
 
 	if (!pskb_may_pull(skb, sizeof(*ah)))
 		goto out;
 
 	ah = (struct ip_auth_hdr *)skb->data;
 	ahp = x->data;
+	ahash = ahp->ahash;
+
 	nexthdr = ah->nexthdr;
 	ah_hlen = (ah->hdrlen + 2) << 2;
 
@@ -156,9 +315,24 @@ static int ah_input(struct xfrm_state *x, struct sk_buff *skb)
 
 	ah = (struct ip_auth_hdr *)skb->data;
 	iph = ip_hdr(skb);
+	ihl = ip_hdrlen(skb);
+
+	if ((err = skb_cow_data(skb, 0, &trailer)) < 0)
+		goto out;
+	nfrags = err;
+
+	work_iph = ah_alloc_tmp(ahash, nfrags, ihl + ahp->icv_trunc_len);
+	if (!work_iph)
+		goto out;
+
+	auth_data = ah_tmp_auth(work_iph, ihl);
+	icv = ah_tmp_icv(ahash, auth_data, ahp->icv_trunc_len);
+	req = ah_tmp_req(ahash, icv);
+	sg = ah_req_sg(ahash, req);
 
-	ihl = skb->data - skb_network_header(skb);
-	memcpy(work_buf, iph, ihl);
+	memcpy(work_iph, iph, ihl);
+	memcpy(auth_data, ah->auth_data, ahp->icv_trunc_len);
+	memset(ah->auth_data, 0, ahp->icv_trunc_len);
 
 	iph->ttl = 0;
 	iph->tos = 0;
@@ -166,35 +340,44 @@ static int ah_input(struct xfrm_state *x, struct sk_buff *skb)
 	iph->check = 0;
 	if (ihl > sizeof(*iph)) {
 		__be32 dummy;
-		if (ip_clear_mutable_options(iph, &dummy))
-			goto out;
+		err = ip_clear_mutable_options(iph, &dummy);
+		if (err)
+			goto out_free;
 	}
 
-	spin_lock(&x->lock);
-	{
-		u8 auth_data[MAX_AH_AUTH_LEN];
+	skb_push(skb, ihl);
 
-		memcpy(auth_data, ah->auth_data, ahp->icv_trunc_len);
-		skb_push(skb, ihl);
-		err = ah_mac_digest(ahp, skb, ah->auth_data);
-		if (err)
-			goto unlock;
-		if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len))
-			err = -EBADMSG;
+	sg_init_table(sg, nfrags);
+	skb_to_sgvec(skb, sg, 0, skb->len);
+
+	ahash_request_set_crypt(req, sg, icv, skb->len);
+	ahash_request_set_callback(req, 0, ah_input_done, skb);
+
+	AH_SKB_CB(skb)->tmp = work_iph;
+
+	err = crypto_ahash_digest(req);
+	if (err) {
+		if (err == -EINPROGRESS)
+			goto out;
+
+		if (err == -EBUSY)
+			err = NET_XMIT_DROP;
+		goto out_free;
 	}
-unlock:
-	spin_unlock(&x->lock);
 
+	err = memcmp(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG: 0;
 	if (err)
-		goto out;
+		goto out_free;
 
 	skb->network_header += ah_hlen;
-	memcpy(skb_network_header(skb), work_buf, ihl);
-	skb->transport_header = skb->network_header;
+	memcpy(skb_network_header(skb), work_iph, ihl);
 	__skb_pull(skb, ah_hlen + ihl);
+	skb_set_transport_header(skb, -ihl);
 
-	return nexthdr;
+	err = nexthdr;
 
+out_free:
+	kfree (work_iph);
 out:
 	return err;
 }
@@ -222,7 +405,7