diff options
author | David Miller <davem@davemloft.net> | 2015-06-25 06:19:07 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2015-06-28 16:55:44 -0700 |
commit | 3200392b88dd25f0d60a500a38d1ce538eb7f933 (patch) | |
tree | 4a17b0714e23ce214d97d326c7a895a9f891426b | |
parent | 2e598712e4b36256c3cf3bca1c2bf0460036cc89 (diff) |
ax25: Stop using sock->sk_protinfo.
Just make a ax25_sock structure that provides the ax25_cb pointer.
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | include/net/ax25.h | 16 | ||||
-rw-r--r-- | net/ax25/af_ax25.c | 30 | ||||
-rw-r--r-- | net/ax25/ax25_in.c | 2 |
3 files changed, 31 insertions, 17 deletions
diff --git a/include/net/ax25.h b/include/net/ax25.h index 16a923a3a43a..e602f8177ebf 100644 --- a/include/net/ax25.h +++ b/include/net/ax25.h @@ -13,6 +13,7 @@ #include <linux/slab.h> #include <linux/atomic.h> #include <net/neighbour.h> +#include <net/sock.h> #define AX25_T1CLAMPLO 1 #define AX25_T1CLAMPHI (30 * HZ) @@ -246,7 +247,20 @@ typedef struct ax25_cb { atomic_t refcount; } ax25_cb; -#define ax25_sk(__sk) ((ax25_cb *)(__sk)->sk_protinfo) +struct ax25_sock { + struct sock sk; + struct ax25_cb *cb; +}; + +static inline struct ax25_sock *ax25_sk(const struct sock *sk) +{ + return (struct ax25_sock *) sk; +} + +static inline struct ax25_cb *sk_to_ax25(const struct sock *sk) +{ + return ax25_sk(sk)->cb; +} #define ax25_for_each(__ax25, list) \ hlist_for_each_entry(__ax25, list, ax25_node) diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index 9c891d0412a2..ae3a47f9d1d5 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -57,7 +57,7 @@ static const struct proto_ops ax25_proto_ops; static void ax25_free_sock(struct sock *sk) { - ax25_cb_put(ax25_sk(sk)); + ax25_cb_put(sk_to_ax25(sk)); } /* @@ -306,7 +306,7 @@ void ax25_destroy_socket(ax25_cb *ax25) while ((skb = skb_dequeue(&ax25->sk->sk_receive_queue)) != NULL) { if (skb->sk != ax25->sk) { /* A pending connection */ - ax25_cb *sax25 = ax25_sk(skb->sk); + ax25_cb *sax25 = sk_to_ax25(skb->sk); /* Queue the unaccepted socket for death */ sock_orphan(skb->sk); @@ -551,7 +551,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname, return -EFAULT; lock_sock(sk); - ax25 = ax25_sk(sk); + ax25 = sk_to_ax25(sk); switch (optname) { case AX25_WINDOW: @@ -697,7 +697,7 @@ static int ax25_getsockopt(struct socket *sock, int level, int optname, length = min_t(unsigned int, maxlen, sizeof(int)); lock_sock(sk); - ax25 = ax25_sk(sk); + ax25 = sk_to_ax25(sk); switch (optname) { case AX25_WINDOW: @@ -796,7 +796,7 @@ out: static struct proto ax25_proto = { .name = "AX25", .owner = THIS_MODULE, - .obj_size = sizeof(struct sock), + .obj_size = sizeof(struct ax25_sock), }; static int ax25_create(struct net *net, struct socket *sock, int protocol, @@ -858,7 +858,7 @@ static int ax25_create(struct net *net, struct socket *sock, int protocol, if (sk == NULL) return -ENOMEM; - ax25 = sk->sk_protinfo = ax25_create_cb(); + ax25 = ax25_sk(sk)->cb = ax25_create_cb(); if (!ax25) { sk_free(sk); return -ENOMEM; @@ -910,7 +910,7 @@ struct sock *ax25_make_new(struct sock *osk, struct ax25_dev *ax25_dev) sk->sk_state = TCP_ESTABLISHED; sock_copy_flags(sk, osk); - oax25 = ax25_sk(osk); + oax25 = sk_to_ax25(osk); ax25->modulus = oax25->modulus; ax25->backoff = oax25->backoff; @@ -938,7 +938,7 @@ struct sock *ax25_make_new(struct sock *osk, struct ax25_dev *ax25_dev) } } - sk->sk_protinfo = ax25; + ax25_sk(sk)->cb = ax25; sk->sk_destruct = ax25_free_sock; ax25->sk = sk; @@ -956,7 +956,7 @@ static int ax25_release(struct socket *sock) sock_hold(sk); sock_orphan(sk); lock_sock(sk); - ax25 = ax25_sk(sk); + ax25 = sk_to_ax25(sk); if (sk->sk_type == SOCK_SEQPACKET) { switch (ax25->state) { @@ -1066,7 +1066,7 @@ static int ax25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) lock_sock(sk); - ax25 = ax25_sk(sk); + ax25 = sk_to_ax25(sk); if (!sock_flag(sk, SOCK_ZAPPED)) { err = -EINVAL; goto out; @@ -1113,7 +1113,7 @@ static int __must_check ax25_connect(struct socket *sock, struct sockaddr *uaddr, int addr_len, int flags) { struct sock *sk = sock->sk; - ax25_cb *ax25 = ax25_sk(sk), *ax25t; + ax25_cb *ax25 = sk_to_ax25(sk), *ax25t; struct full_sockaddr_ax25 *fsa = (struct full_sockaddr_ax25 *)uaddr; ax25_digi *digi = NULL; int ct = 0, err = 0; @@ -1394,7 +1394,7 @@ static int ax25_getname(struct socket *sock, struct sockaddr *uaddr, memset(fsa, 0, sizeof(*fsa)); lock_sock(sk); - ax25 = ax25_sk(sk); + ax25 = sk_to_ax25(sk); if (peer != 0) { if (sk->sk_state != TCP_ESTABLISHED) { @@ -1446,7 +1446,7 @@ static int ax25_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) return -EINVAL; lock_sock(sk); - ax25 = ax25_sk(sk); + ax25 = sk_to_ax25(sk); if (sock_flag(sk, SOCK_ZAPPED)) { err = -EADDRNOTAVAIL; @@ -1621,7 +1621,7 @@ static int ax25_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, if (skb == NULL) goto out; - if (!ax25_sk(sk)->pidincl) + if (!sk_to_ax25(sk)->pidincl) skb_pull(skb, 1); /* Remove PID */ skb_reset_transport_header(skb); @@ -1762,7 +1762,7 @@ static int ax25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) case SIOCAX25GETINFO: case SIOCAX25GETINFOOLD: { - ax25_cb *ax25 = ax25_sk(sk); + ax25_cb *ax25 = sk_to_ax25(sk); struct ax25_info_struct ax25_info; ax25_info.t1 = ax25->t1 / HZ; diff --git a/net/ax25/ax25_in.c b/net/ax25/ax25_in.c index 29a3687237aa..bb5a0e4e98d9 100644 --- a/net/ax25/ax25_in.c +++ b/net/ax25/ax25_in.c @@ -353,7 +353,7 @@ static int ax25_rcv(struct sk_buff *skb, struct net_device *dev, return 0; } - ax25 = ax25_sk(make); + ax25 = sk_to_ax25(make); skb_set_owner_r(skb, make); skb_queue_head(&sk->sk_receive_queue, skb); |