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ax25: constify dev_addr passing

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In preparation for netdev->dev_addr being constant
make all relevant arguments in AX25 constant.

Modify callers as well (netrom, rose).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2021-10-12 08:58:35 -07:00
parent 5f3b8acee9
commit c045ad2cc0
10 changed files with 26 additions and 25 deletions
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13
include/net/ax25.h
View File

@ -304,7 +304,7 @@ extern spinlock_t ax25_list_lock;
void ax25_cb_add(ax25_cb *);
struct sock *ax25_find_listener(ax25_address *, int, struct net_device *, int);
struct sock *ax25_get_socket(ax25_address *, ax25_address *, int);
ax25_cb *ax25_find_cb(ax25_address *, ax25_address *, ax25_digi *,
ax25_cb *ax25_find_cb(const ax25_address *, ax25_address *, ax25_digi *,
struct net_device *);
void ax25_send_to_raw(ax25_address *, struct sk_buff *, int);
void ax25_destroy_socket(ax25_cb *);
@ -384,10 +384,11 @@ struct ax25_linkfail {
void ax25_linkfail_register(struct ax25_linkfail *lf);
void ax25_linkfail_release(struct ax25_linkfail *lf);
int __must_check ax25_listen_register(ax25_address *, struct net_device *);
void ax25_listen_release(ax25_address *, struct net_device *);
int __must_check ax25_listen_register(const ax25_address *,
struct net_device *);
void ax25_listen_release(const ax25_address *, struct net_device *);
int(*ax25_protocol_function(unsigned int))(struct sk_buff *, ax25_cb *);
int ax25_listen_mine(ax25_address *, struct net_device *);
int ax25_listen_mine(const ax25_address *, struct net_device *);
void ax25_link_failed(ax25_cb *, int);
int ax25_protocol_is_registered(unsigned int);
@ -401,8 +402,8 @@ netdev_tx_t ax25_ip_xmit(struct sk_buff *skb);
extern const struct header_ops ax25_header_ops;
/* ax25_out.c */
ax25_cb *ax25_send_frame(struct sk_buff *, int, ax25_address *, ax25_address *,
ax25_digi *, struct net_device *);
ax25_cb *ax25_send_frame(struct sk_buff *, int, const ax25_address *,
ax25_address *, ax25_digi *, struct net_device *);
void ax25_output(ax25_cb *, int, struct sk_buff *);
void ax25_kick(ax25_cb *);
void ax25_transmit_buffer(ax25_cb *, struct sk_buff *, int);

2
net/ax25/af_ax25.c
View File

@ -202,7 +202,7 @@ struct sock *ax25_get_socket(ax25_address *my_addr, ax25_address *dest_addr,
* Find an AX.25 control block given both ends. It will only pick up
* floating AX.25 control blocks or non Raw socket bound control blocks.
*/
ax25_cb *ax25_find_cb(ax25_address *src_addr, ax25_address *dest_addr,
ax25_cb *ax25_find_cb(const ax25_address *src_addr, ax25_address *dest_addr,
ax25_digi *digi, struct net_device *dev)
{
ax25_cb *s;

2
net/ax25/ax25_dev.c
View File

@ -35,7 +35,7 @@ ax25_dev *ax25_addr_ax25dev(ax25_address *addr)
spin_lock_bh(&ax25_dev_lock);
for (ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next)
if (ax25cmp(addr, (ax25_address *)ax25_dev->dev->dev_addr) == 0) {
if (ax25cmp(addr, (const ax25_address *)ax25_dev->dev->dev_addr) == 0) {
res = ax25_dev;
}
spin_unlock_bh(&ax25_dev_lock);

6
net/ax25/ax25_iface.c
View File

@ -98,7 +98,7 @@ void ax25_linkfail_release(struct ax25_linkfail *lf)
EXPORT_SYMBOL(ax25_linkfail_release);
int ax25_listen_register(ax25_address *callsign, struct net_device *dev)
int ax25_listen_register(const ax25_address *callsign, struct net_device *dev)
{
struct listen_struct *listen;
@ -121,7 +121,7 @@ int ax25_listen_register(ax25_address *callsign, struct net_device *dev)
EXPORT_SYMBOL(ax25_listen_register);
void ax25_listen_release(ax25_address *callsign, struct net_device *dev)
void ax25_listen_release(const ax25_address *callsign, struct net_device *dev)
{
struct listen_struct *s, *listen;
@ -171,7 +171,7 @@ int (*ax25_protocol_function(unsigned int pid))(struct sk_buff *, ax25_cb *)
return res;
}
int ax25_listen_mine(ax25_address *callsign, struct net_device *dev)
int ax25_listen_mine(const ax25_address *callsign, struct net_device *dev)
{
struct listen_struct *listen;

4
net/ax25/ax25_in.c
View File

@ -181,7 +181,7 @@ static int ax25_process_rx_frame(ax25_cb *ax25, struct sk_buff *skb, int type, i
}
static int ax25_rcv(struct sk_buff *skb, struct net_device *dev,
ax25_address *dev_addr, struct packet_type *ptype)
const ax25_address *dev_addr, struct packet_type *ptype)
{
ax25_address src, dest, *next_digi = NULL;
int type = 0, mine = 0, dama;
@ -447,5 +447,5 @@ int ax25_kiss_rcv(struct sk_buff *skb, struct net_device *dev,
skb_pull(skb, AX25_KISS_HEADER_LEN); /* Remove the KISS byte */
return ax25_rcv(skb, dev, (ax25_address *)dev->dev_addr, ptype);
return ax25_rcv(skb, dev, (const ax25_address *)dev->dev_addr, ptype);
}

2
net/ax25/ax25_out.c
View File

@ -29,7 +29,7 @@
static DEFINE_SPINLOCK(ax25_frag_lock);
ax25_cb *ax25_send_frame(struct sk_buff *skb, int paclen, ax25_address *src, ax25_address *dest, ax25_digi *digi, struct net_device *dev)
ax25_cb *ax25_send_frame(struct sk_buff *skb, int paclen, const ax25_address *src, ax25_address *dest, ax25_digi *digi, struct net_device *dev)
{
ax25_dev *ax25_dev;
ax25_cb *ax25;

4
net/netrom/af_netrom.c
View File

@ -633,7 +633,7 @@ static int nr_connect(struct socket *sock, struct sockaddr *uaddr,
struct sock *sk = sock->sk;
struct nr_sock *nr = nr_sk(sk);
struct sockaddr_ax25 *addr = (struct sockaddr_ax25 *)uaddr;
ax25_address *source = NULL;
const ax25_address *source = NULL;
ax25_uid_assoc *user;
struct net_device *dev;
int err = 0;
@ -673,7 +673,7 @@ static int nr_connect(struct socket *sock, struct sockaddr *uaddr,
err = -ENETUNREACH;
goto out_release;
}
source = (ax25_address *)dev->dev_addr;
source = (const ax25_address *)dev->dev_addr;
user = ax25_findbyuid(current_euid());
if (user) {

6
net/netrom/nr_dev.c
View File

@ -108,7 +108,7 @@ static int __must_check nr_set_mac_address(struct net_device *dev, void *addr)
if (err)
return err;
ax25_listen_release((ax25_address *)dev->dev_addr, NULL);
ax25_listen_release((const ax25_address *)dev->dev_addr, NULL);
}
dev_addr_set(dev, sa->sa_data);
@ -120,7 +120,7 @@ static int nr_open(struct net_device *dev)
{
int err;
err = ax25_listen_register((ax25_address *)dev->dev_addr, NULL);
err = ax25_listen_register((const ax25_address *)dev->dev_addr, NULL);
if (err)
return err;
@ -131,7 +131,7 @@ static int nr_open(struct net_device *dev)
static int nr_close(struct net_device *dev)
{
ax25_listen_release((ax25_address *)dev->dev_addr, NULL);
ax25_listen_release((const ax25_address *)dev->dev_addr, NULL);
netif_stop_queue(dev);
return 0;
}

4
net/netrom/nr_route.c
View File

@ -598,7 +598,7 @@ struct net_device *nr_dev_get(ax25_address *addr)
rcu_read_lock();
for_each_netdev_rcu(&init_net, dev) {
if ((dev->flags & IFF_UP) && dev->type == ARPHRD_NETROM &&
ax25cmp(addr, (ax25_address *)dev->dev_addr) == 0) {
ax25cmp(addr, (const ax25_address *)dev->dev_addr) == 0) {
dev_hold(dev);
goto out;
}
@ -825,7 +825,7 @@ int nr_route_frame(struct sk_buff *skb, ax25_cb *ax25)
ax25s = nr_neigh->ax25;
nr_neigh->ax25 = ax25_send_frame(skb, 256,
(ax25_address *)dev->dev_addr,
(const ax25_address *)dev->dev_addr,
&nr_neigh->callsign,
nr_neigh->digipeat, nr_neigh->dev);
if (ax25s)

8
net/rose/rose_link.c
View File

@ -94,11 +94,11 @@ static void rose_t0timer_expiry(struct timer_list *t)
*/
static int rose_send_frame(struct sk_buff *skb, struct rose_neigh *neigh)
{
ax25_address *rose_call;
const ax25_address *rose_call;
ax25_cb *ax25s;
if (ax25cmp(&rose_callsign, &null_ax25_address) == 0)
rose_call = (ax25_address *)neigh->dev->dev_addr;
rose_call = (const ax25_address *)neigh->dev->dev_addr;
else
rose_call = &rose_callsign;
@ -117,11 +117,11 @@ static int rose_send_frame(struct sk_buff *skb, struct rose_neigh *neigh)
*/
static int rose_link_up(struct rose_neigh *neigh)
{
ax25_address *rose_call;
const ax25_address *rose_call;
ax25_cb *ax25s;
if (ax25cmp(&rose_callsign, &null_ax25_address) == 0)
rose_call = (ax25_address *)neigh->dev->dev_addr;
rose_call = (const ax25_address *)neigh->dev->dev_addr;
else
rose_call = &rose_callsign;