Commit 3200392b authored by David Miller's avatar David Miller Committed by David S. Miller
Browse files

ax25: Stop using sock->sk_protinfo. 



Just make a ax25_sock structure that provides the ax25_cb pointer.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2e598712

include/net/ax25.h

+15 −1
Original line number Diff line number Diff line
@@ -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)

net/ax25/af_ax25.c

+15 −15
Original line number Diff line number Diff line
@@ -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 @@ static int ax25_listen(struct socket *sock, int backlog) 
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;

net/ax25/ax25_in.c

+1 −1
Original line number Diff line number Diff line
@@ -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);