[NET]: Forget the zero_it argument of sk_alloc()

Finally, the zero_it argument can be completely removed from
the callers and from the function prototype.

Besides, fix the checkpatch.pl warnings about using the
assignments inside if-s.

This patch is rather big, and it is a part of the previous one.
I splitted it wishing to make the patches more readable. Hope 
this particular split helped.
Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/pppoe.c

@@ -491,7 +491,7 @@ static int pppoe_create(struct net *net, struct socket *sock)
 	int error = -ENOMEM;
 	struct sock *sk;
 
-	sk = sk_alloc(net, PF_PPPOX, GFP_KERNEL, &pppoe_sk_proto, 1);
+	sk = sk_alloc(net, PF_PPPOX, GFP_KERNEL, &pppoe_sk_proto);
 	if (!sk)
 		goto out;
 

drivers/net/pppol2tp.c

@@ -1416,7 +1416,7 @@ static int pppol2tp_create(struct net *net, struct socket *sock)
 	int error = -ENOMEM;
 	struct sock *sk;
 
-	sk = sk_alloc(net, PF_PPPOX, GFP_KERNEL, &pppol2tp_sk_proto, 1);
+	sk = sk_alloc(net, PF_PPPOX, GFP_KERNEL, &pppol2tp_sk_proto);
 	if (!sk)
 		goto out;
 

include/net/sock.h

@@ -779,7 +779,7 @@ extern void FASTCALL(release_sock(struct sock *sk));
 
 extern struct sock		*sk_alloc(struct net *net, int family,
 					  gfp_t priority,
-					  struct proto *prot, int zero_it);
+					  struct proto *prot);
 extern void			sk_free(struct sock *sk);
 extern struct sock		*sk_clone(const struct sock *sk,
 					  const gfp_t priority);

net/appletalk/ddp.c

@@ -1044,7 +1044,7 @@ static int atalk_create(struct net *net, struct socket *sock, int protocol)
 	if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM)
 		goto out;
 	rc = -ENOMEM;
-	sk = sk_alloc(net, PF_APPLETALK, GFP_KERNEL, &ddp_proto, 1);
+	sk = sk_alloc(net, PF_APPLETALK, GFP_KERNEL, &ddp_proto);
 	if (!sk)
 		goto out;
 	rc = 0;

net/atm/common.c

@@ -133,7 +133,7 @@ int vcc_create(struct net *net, struct socket *sock, int protocol, int family)
 	sock->sk = NULL;
 	if (sock->type == SOCK_STREAM)
 		return -EINVAL;
-	sk = sk_alloc(net, family, GFP_KERNEL, &vcc_proto, 1);
+	sk = sk_alloc(net, family, GFP_KERNEL, &vcc_proto);
 	if (!sk)
 		return -ENOMEM;
 	sock_init_data(sock, sk);

net/ax25/af_ax25.c

@@ -836,7 +836,8 @@ static int ax25_create(struct net *net, struct socket *sock, int protocol)
 		return -ESOCKTNOSUPPORT;
 	}
 
-	if ((sk = sk_alloc(net, PF_AX25, GFP_ATOMIC, &ax25_proto, 1)) == NULL)
+	sk = sk_alloc(net, PF_AX25, GFP_ATOMIC, &ax25_proto);
+	if (sk == NULL)
 		return -ENOMEM;
 
 	ax25 = sk->sk_protinfo = ax25_create_cb();
@@ -861,7 +862,8 @@ struct sock *ax25_make_new(struct sock *osk, struct ax25_dev *ax25_dev)
 	struct sock *sk;
 	ax25_cb *ax25, *oax25;
 
-	if ((sk = sk_alloc(osk->sk_net, PF_AX25, GFP_ATOMIC, osk->sk_prot, 1)) == NULL)
+	sk = sk_alloc(osk->sk_net, PF_AX25, GFP_ATOMIC,	osk->sk_prot);
+	if (sk == NULL)
 		return NULL;
 
 	if ((ax25 = ax25_create_cb()) == NULL) {

net/bluetooth/bnep/sock.c

@@ -213,7 +213,7 @@ static int bnep_sock_create(struct net *net, struct socket *sock, int protocol)
 	if (sock->type != SOCK_RAW)
 		return -ESOCKTNOSUPPORT;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &bnep_proto, 1);
+	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &bnep_proto);
 	if (!sk)
 		return -ENOMEM;
 

net/bluetooth/cmtp/sock.c

@@ -204,7 +204,7 @@ static int cmtp_sock_create(struct net *net, struct socket *sock, int protocol)
 	if (sock->type != SOCK_RAW)
 		return -ESOCKTNOSUPPORT;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &cmtp_proto, 1);
+	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &cmtp_proto);
 	if (!sk)
 		return -ENOMEM;
 

net/bluetooth/hci_sock.c

@@ -645,7 +645,7 @@ static int hci_sock_create(struct net *net, struct socket *sock, int protocol)
 
 	sock->ops = &hci_sock_ops;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto, 1);
+	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto);
 	if (!sk)
 		return -ENOMEM;
 

net/bluetooth/hidp/sock.c

@@ -255,7 +255,7 @@ static int hidp_sock_create(struct net *net, struct socket *sock, int protocol)
 	if (sock->type != SOCK_RAW)
 		return -ESOCKTNOSUPPORT;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hidp_proto, 1);
+	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hidp_proto);
 	if (!sk)
 		return -ENOMEM;
 

net/bluetooth/l2cap.c

@@ -607,7 +607,7 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int p
 {
 	struct sock *sk;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, prio, &l2cap_proto, 1);
+	sk = sk_alloc(net, PF_BLUETOOTH, prio, &l2cap_proto);
 	if (!sk)
 		return NULL;
 

net/bluetooth/rfcomm/sock.c

@@ -287,7 +287,7 @@ static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock, int
 	struct rfcomm_dlc *d;
 	struct sock *sk;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, prio, &rfcomm_proto, 1);
+	sk = sk_alloc(net, PF_BLUETOOTH, prio, &rfcomm_proto);
 	if (!sk)
 		return NULL;
 

net/bluetooth/sco.c

@@ -421,7 +421,7 @@ static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int pro
 {
 	struct sock *sk;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto, 1);
+	sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto);
 	if (!sk)
 		return NULL;
 

net/core/sock.c

@@ -927,7 +927,7 @@ static void sk_prot_free(struct proto *prot, struct sock *sk)
  *	@zero_it: if we should zero the newly allocated sock
  */
 struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
-		      struct proto *prot, int zero_it)
+		      struct proto *prot)
 {
 	struct sock *sk;
 

net/decnet/af_decnet.c

@@ -474,7 +474,7 @@ static struct proto dn_proto = {
 static struct sock *dn_alloc_sock(struct net *net, struct socket *sock, gfp_t gfp)
 {
 	struct dn_scp *scp;
-	struct sock *sk = sk_alloc(net, PF_DECnet, gfp, &dn_proto, 1);
+	struct sock *sk = sk_alloc(net, PF_DECnet, gfp, &dn_proto);
 
 	if  (!sk)
 		goto out;

net/econet/af_econet.c

@@ -624,7 +624,7 @@ static int econet_create(struct net *net, struct socket *sock, int protocol)
 	sock->state = SS_UNCONNECTED;
 
 	err = -ENOBUFS;
-	sk = sk_alloc(net, PF_ECONET, GFP_KERNEL, &econet_proto, 1);
+	sk = sk_alloc(net, PF_ECONET, GFP_KERNEL, &econet_proto);
 	if (sk == NULL)
 		goto out;
 

net/ipv4/af_inet.c

@@ -323,7 +323,7 @@ static int inet_create(struct net *net, struct socket *sock, int protocol)
 	BUG_TRAP(answer_prot->slab != NULL);
 
 	err = -ENOBUFS;
-	sk = sk_alloc(net, PF_INET, GFP_KERNEL, answer_prot, 1);
+	sk = sk_alloc(net, PF_INET, GFP_KERNEL, answer_prot);
 	if (sk == NULL)
 		goto out;
 

net/ipv6/af_inet6.c

@@ -162,7 +162,7 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol)
 	BUG_TRAP(answer_prot->slab != NULL);
 
 	err = -ENOBUFS;
-	sk = sk_alloc(net, PF_INET6, GFP_KERNEL, answer_prot, 1);
+	sk = sk_alloc(net, PF_INET6, GFP_KERNEL, answer_prot);
 	if (sk == NULL)
 		goto out;
 

net/ipx/af_ipx.c

@@ -1381,7 +1381,7 @@ static int ipx_create(struct net *net, struct socket *sock, int protocol)
 		goto out;
 
 	rc = -ENOMEM;
-	sk = sk_alloc(net, PF_IPX, GFP_KERNEL, &ipx_proto, 1);
+	sk = sk_alloc(net, PF_IPX, GFP_KERNEL, &ipx_proto);
 	if (!sk)
 		goto out;
 #ifdef IPX_REFCNT_DEBUG

net/irda/af_irda.c

@@ -1078,7 +1078,7 @@ static int irda_create(struct net *net, struct socket *sock, int protocol)
 	}
 
 	/* Allocate networking socket */
-	sk = sk_alloc(net, PF_IRDA, GFP_ATOMIC, &irda_proto, 1);
+	sk = sk_alloc(net, PF_IRDA, GFP_ATOMIC, &irda_proto);
 	if (sk == NULL)
 		return -ENOMEM;
 

net/iucv/af_iucv.c

@@ -216,7 +216,7 @@ static struct sock *iucv_sock_alloc(struct socket *sock, int proto, gfp_t prio)
 {
 	struct sock *sk;
 
-	sk = sk_alloc(&init_net, PF_IUCV, prio, &iucv_proto, 1);
+	sk = sk_alloc(&init_net, PF_IUCV, prio, &iucv_proto);
 	if (!sk)
 		return NULL;
 

net/key/af_key.c

@@ -152,7 +152,7 @@ static int pfkey_create(struct net *net, struct socket *sock, int protocol)
 		return -EPROTONOSUPPORT;
 
 	err = -ENOMEM;
-	sk = sk_alloc(net, PF_KEY, GFP_KERNEL, &key_proto, 1);
+	sk = sk_alloc(net, PF_KEY, GFP_KERNEL, &key_proto);
 	if (sk == NULL)
 		goto out;
 

net/llc/llc_conn.c

@@ -869,7 +869,7 @@ static void llc_sk_init(struct sock* sk)
  */
 struct sock *llc_sk_alloc(struct net *net, int family, gfp_t priority, struct proto *prot)
 {
-	struct sock *sk = sk_alloc(net, family, priority, prot, 1);
+	struct sock *sk = sk_alloc(net, family, priority, prot);
 
 	if (!sk)
 		goto out;

net/netlink/af_netlink.c

@@ -396,7 +396,7 @@ static int __netlink_create(struct net *net, struct socket *sock,
 
 	sock->ops = &netlink_ops;
 
-	sk = sk_alloc(net, PF_NETLINK, GFP_KERNEL, &netlink_proto, 1);
+	sk = sk_alloc(net, PF_NETLINK, GFP_KERNEL, &netlink_proto);
 	if (!sk)
 		return -ENOMEM;
 

net/netrom/af_netrom.c

@@ -423,7 +423,8 @@ static int nr_create(struct net *net, struct socket *sock, int protocol)
 	if (sock->type != SOCK_SEQPACKET || protocol != 0)
 		return -ESOCKTNOSUPPORT;
 
-	if ((sk = sk_alloc(net, PF_NETROM, GFP_ATOMIC, &nr_proto, 1)) == NULL)
+	sk = sk_alloc(net, PF_NETROM, GFP_ATOMIC, &nr_proto);
+	if (sk  == NULL)
 		return -ENOMEM;
 
 	nr = nr_sk(sk);
@@ -465,7 +466,8 @@ static struct sock *nr_make_new(struct sock *osk)
 	if (osk->sk_type != SOCK_SEQPACKET)
 		return NULL;
 
-	if ((sk = sk_alloc(osk->sk_net, PF_NETROM, GFP_ATOMIC, osk->sk_prot, 1)) == NULL)
+	sk = sk_alloc(osk->sk_net, PF_NETROM, GFP_ATOMIC, osk->sk_prot);
+	if (sk == NULL)
 		return NULL;
 
 	nr = nr_sk(sk);

net/packet/af_packet.c

@@ -995,7 +995,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol)
 	sock->state = SS_UNCONNECTED;
 
 	err = -ENOBUFS;
-	sk = sk_alloc(net, PF_PACKET, GFP_KERNEL, &packet_proto, 1);
+	sk = sk_alloc(net, PF_PACKET, GFP_KERNEL, &packet_proto);
 	if (sk == NULL)
 		goto out;
 

net/rose/af_rose.c

@@ -513,7 +513,8 @@ static int rose_create(struct net *net, struct socket *sock, int protocol)
 	if (sock->type != SOCK_SEQPACKET || protocol != 0)
 		return -ESOCKTNOSUPPORT;
 
-	if ((sk = sk_alloc(net, PF_ROSE, GFP_ATOMIC, &rose_proto, 1)) == NULL)
+	sk = sk_alloc(net, PF_ROSE, GFP_ATOMIC, &rose_proto);
+	if (sk == NULL)
 		return -ENOMEM;
 
 	rose = rose_sk(sk);
@@ -551,7 +552,8 @@ static struct sock *rose_make_new(struct sock *osk)
 	if (osk->sk_type != SOCK_SEQPACKET)
 		return NULL;
 
-	if ((sk = sk_alloc(osk->sk_net, PF_ROSE, GFP_ATOMIC, &rose_proto, 1)) == NULL)
+	sk = sk_alloc(osk->sk_net, PF_ROSE, GFP_ATOMIC, &rose_proto);
+	if (sk == NULL)
 		return NULL;
 
 	rose = rose_sk(sk);

net/rxrpc/af_rxrpc.c

@@ -627,7 +627,7 @@ static int rxrpc_create(struct net *net, struct socket *sock, int protocol)
 	sock->ops = &rxrpc_rpc_ops;
 	sock->state = SS_UNCONNECTED;
 
-	sk = sk_alloc(net, PF_RXRPC, GFP_KERNEL, &rxrpc_proto, 1);
+	sk = sk_alloc(net, PF_RXRPC, GFP_KERNEL, &rxrpc_proto);
 	if (!sk)
 		return -ENOMEM;
 

net/sctp/ipv6.c

@@ -631,7 +631,7 @@ static struct sock *sctp_v6_create_accept_sk(struct sock *sk,
 	struct ipv6_pinfo *newnp, *np = inet6_sk(sk);
 	struct sctp6_sock *newsctp6sk;
 
-	newsk = sk_alloc(sk->sk_net, PF_INET6, GFP_KERNEL, sk->sk_prot, 1);
+	newsk = sk_alloc(sk->sk_net, PF_INET6, GFP_KERNEL, sk->sk_prot);
 	if (!newsk)
 		goto out;
 

net/sctp/protocol.c

@@ -552,7 +552,8 @@ static struct sock *sctp_v4_create_accept_sk(struct sock *sk,
 {
 	struct inet_sock *inet = inet_sk(sk);
 	struct inet_sock *newinet;
-	struct sock *newsk = sk_alloc(sk->sk_net, PF_INET, GFP_KERNEL, sk->sk_prot, 1);
+	struct sock *newsk = sk_alloc(sk->sk_net, PF_INET, GFP_KERNEL,
+			sk->sk_prot);
 
 	if (!newsk)
 		goto out;

net/tipc/socket.c

@@ -201,7 +201,7 @@ static int tipc_create(struct net *net, struct socket *sock, int protocol)
 		return -EPROTOTYPE;
 	}
 
-	sk = sk_alloc(net, AF_TIPC, GFP_KERNEL, &tipc_proto, 1);
+	sk = sk_alloc(net, AF_TIPC, GFP_KERNEL, &tipc_proto);
 	if (!sk) {
 		tipc_deleteport(ref);
 		return -ENOMEM;

net/unix/af_unix.c

@@ -602,7 +602,7 @@ static struct sock * unix_create1(struct net *net, struct socket *sock)
 	if (atomic_read(&unix_nr_socks) >= 2*get_max_files())
 		goto out;
 
-	sk = sk_alloc(net, PF_UNIX, GFP_KERNEL, &unix_proto, 1);
+	sk = sk_alloc(net, PF_UNIX, GFP_KERNEL, &unix_proto);
 	if (!sk)
 		goto out;
 

net/x25/af_x25.c

@@ -472,7 +472,7 @@ static struct proto x25_proto = {
 static struct sock *x25_alloc_socket(struct net *net)
 {
 	struct x25_sock *x25;
-	struct sock *sk = sk_alloc(net, AF_X25, GFP_ATOMIC, &x25_proto, 1);
+	struct sock *sk = sk_alloc(net, AF_X25, GFP_ATOMIC, &x25_proto);
 
 	if (!sk)
 		goto out;