ALSA: sound/usb: add preliminary support for UAC2 interrupts

[safe/jmp/linux-2.6] / net / ipv6 / af_inet6.c

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 9421651..37d14e7 100644 (file)
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -95,7 +95,8 @@ static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk)
        return (struct ipv6_pinfo *)(((u8 *)sk) + offset);
 }
 
-static int inet6_create(struct net *net, struct socket *sock, int protocol)
+static int inet6_create(struct net *net, struct socket *sock, int protocol,
+                       int kern)
 {
        struct inet_sock *inet;
        struct ipv6_pinfo *np;
@@ -158,7 +159,7 @@ 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;
 
        sock->ops = answer->ops;
@@ -185,7 +186,7 @@ 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;
        }
@@ -228,12 +229,12 @@ 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);
                sk->sk_prot->hash(sk);
        }
        if (sk->sk_prot->init) {
@@ -281,7 +282,7 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
        lock_sock(sk);
 
        /* Check these errors (active socket, double bind). */
-       if (sk->sk_state != TCP_CLOSE || inet->num) {
+       if (sk->sk_state != TCP_CLOSE || inet->inet_num) {
                err = -EINVAL;
                goto out;
        }
@@ -314,6 +315,7 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
                if (addr_type != IPV6_ADDR_ANY) {
                        struct net_device *dev = NULL;
 
+                       rcu_read_lock();
                        if (addr_type & IPV6_ADDR_LINKLOCAL) {
                                if (addr_len >= sizeof(struct sockaddr_in6) &&
                                    addr->sin6_scope_id) {
@@ -326,12 +328,12 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
                                /* Binding to link-local address requires an interface */
                                if (!sk->sk_bound_dev_if) {
                                        err = -EINVAL;
-                                       goto out;
+                                       goto out_unlock;
                                }
-                               dev = dev_get_by_index(net, sk->sk_bound_dev_if);
+                               dev = dev_get_by_index_rcu(net, sk->sk_bound_dev_if);
                                if (!dev) {
                                        err = -ENODEV;
-                                       goto out;
+                                       goto out_unlock;
                                }
                        }
 
@@ -342,19 +344,16 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
                        if (!(addr_type & IPV6_ADDR_MULTICAST)) {
                                if (!ipv6_chk_addr(net, &addr->sin6_addr,
                                                   dev, 0)) {
-                                       if (dev)
-                                               dev_put(dev);
                                        err = -EADDRNOTAVAIL;
-                                       goto out;
+                                       goto out_unlock;
                                }
                        }
-                       if (dev)
-                               dev_put(dev);
+                       rcu_read_unlock();
                }
        }
 
-       inet->rcv_saddr = v4addr;
-       inet->saddr = v4addr;
+       inet->inet_rcv_saddr = v4addr;
+       inet->inet_saddr = v4addr;
 
        ipv6_addr_copy(&np->rcv_saddr, &addr->sin6_addr);
 
@@ -375,12 +374,15 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
        }
        if (snum)
                sk->sk_userlocks |= SOCK_BINDPORT_LOCK;
-       inet->sport = htons(inet->num);
-       inet->dport = 0;
-       inet->daddr = 0;
+       inet->inet_sport = htons(inet->inet_num);
+       inet->inet_dport = 0;
+       inet->inet_daddr = 0;
 out:
        release_sock(sk);
        return err;
+out_unlock:
+       rcu_read_unlock();
+       goto out;
 }
 
 EXPORT_SYMBOL(inet6_bind);
@@ -441,12 +443,12 @@ int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
        sin->sin6_flowinfo = 0;
        sin->sin6_scope_id = 0;
        if (peer) {
-               if (!inet->dport)
+               if (!inet->inet_dport)
                        return -ENOTCONN;
                if (((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_SYN_SENT)) &&
                    peer == 1)
                        return -ENOTCONN;
-               sin->sin6_port = inet->dport;
+               sin->sin6_port = inet->inet_dport;
                ipv6_addr_copy(&sin->sin6_addr, &np->daddr);
                if (np->sndflow)
                        sin->sin6_flowinfo = np->flow_label;
@@ -456,7 +458,7 @@ int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
                else
                        ipv6_addr_copy(&sin->sin6_addr, &np->rcv_saddr);
 
-               sin->sin6_port = inet->sport;
+               sin->sin6_port = inet->inet_sport;
        }
        if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
                sin->sin6_scope_id = sk->sk_bound_dev_if;
@@ -655,8 +657,8 @@ int inet6_sk_rebuild_header(struct sock *sk)
                fl.fl6_flowlabel = np->flow_label;
                fl.oif = sk->sk_bound_dev_if;
                fl.mark = sk->sk_mark;
-               fl.fl_ip_dport = inet->dport;
-               fl.fl_ip_sport = inet->sport;
+               fl.fl_ip_dport = inet->inet_dport;
+               fl.fl_ip_sport = inet->inet_sport;
                security_sk_classify_flow(sk, &fl);
 
                if (np->opt && np->opt->srcrt) {
@@ -969,41 +971,41 @@ static void ipv6_packet_cleanup(void)
 
 static int __net_init ipv6_init_mibs(struct net *net)
 {
-       if (snmp_mib_init((void **)net->mib.udp_stats_in6,
+       if (snmp_mib_init((void __percpu **)net->mib.udp_stats_in6,
                          sizeof (struct udp_mib)) < 0)
                return -ENOMEM;
-       if (snmp_mib_init((void **)net->mib.udplite_stats_in6,
+       if (snmp_mib_init((void __percpu **)net->mib.udplite_stats_in6,
                          sizeof (struct udp_mib)) < 0)
                goto err_udplite_mib;
-       if (snmp_mib_init((void **)net->mib.ipv6_statistics,
+       if (snmp_mib_init((void __percpu **)net->mib.ipv6_statistics,
                          sizeof(struct ipstats_mib)) < 0)
                goto err_ip_mib;
-       if (snmp_mib_init((void **)net->mib.icmpv6_statistics,
+       if (snmp_mib_init((void __percpu **)net->mib.icmpv6_statistics,
                          sizeof(struct icmpv6_mib)) < 0)
                goto err_icmp_mib;
-       if (snmp_mib_init((void **)net->mib.icmpv6msg_statistics,
+       if (snmp_mib_init((void __percpu **)net->mib.icmpv6msg_statistics,
                          sizeof(struct icmpv6msg_mib)) < 0)
                goto err_icmpmsg_mib;
        return 0;
 
 err_icmpmsg_mib:
-       snmp_mib_free((void **)net->mib.icmpv6_statistics);
+       snmp_mib_free((void __percpu **)net->mib.icmpv6_statistics);
 err_icmp_mib:
-       snmp_mib_free((void **)net->mib.ipv6_statistics);
+       snmp_mib_free((void __percpu **)net->mib.ipv6_statistics);
 err_ip_mib:
-       snmp_mib_free((void **)net->mib.udplite_stats_in6);
+       snmp_mib_free((void __percpu **)net->mib.udplite_stats_in6);
 err_udplite_mib:
-       snmp_mib_free((void **)net->mib.udp_stats_in6);
+       snmp_mib_free((void __percpu **)net->mib.udp_stats_in6);
        return -ENOMEM;
 }
 
-static void __net_exit ipv6_cleanup_mibs(struct net *net)
+static void ipv6_cleanup_mibs(struct net *net)
 {
-       snmp_mib_free((void **)net->mib.udp_stats_in6);
-       snmp_mib_free((void **)net->mib.udplite_stats_in6);
-       snmp_mib_free((void **)net->mib.ipv6_statistics);
-       snmp_mib_free((void **)net->mib.icmpv6_statistics);
-       snmp_mib_free((void **)net->mib.icmpv6msg_statistics);
+       snmp_mib_free((void __percpu **)net->mib.udp_stats_in6);
+       snmp_mib_free((void __percpu **)net->mib.udplite_stats_in6);
+       snmp_mib_free((void __percpu **)net->mib.ipv6_statistics);
+       snmp_mib_free((void __percpu **)net->mib.icmpv6_statistics);
+       snmp_mib_free((void __percpu **)net->mib.icmpv6msg_statistics);
 }
 
 static int __net_init inet6_net_init(struct net *net)
@@ -1040,7 +1042,7 @@ out:
 #endif
 }
 
-static void inet6_net_exit(struct net *net)
+static void __net_exit inet6_net_exit(struct net *net)
 {
 #ifdef CONFIG_PROC_FS
        udp6_proc_exit(net);