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can: make struct can_proto const

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commit 53914b6799 had the
same message. That commit did put everything in place but
did not make can_proto const itself.

Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kurt Van Dijck 2011-05-03 18:40:57 +00:00 committed by David S. Miller
parent 5a412ad7f4
commit 1650629d18
4 changed files with 10 additions and 10 deletions
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4
include/linux/can/core.h
View File

@ -44,8 +44,8 @@ struct can_proto {
/* function prototypes for the CAN networklayer core (af_can.c) */
extern int can_proto_register(struct can_proto *cp);
extern void can_proto_unregister(struct can_proto *cp);
extern int can_proto_register(const struct can_proto *cp);
extern void can_proto_unregister(const struct can_proto *cp);
extern int can_rx_register(struct net_device *dev, canid_t can_id,
canid_t mask,

12
net/can/af_can.c
View File

@ -84,7 +84,7 @@ static DEFINE_SPINLOCK(can_rcvlists_lock);
static struct kmem_cache *rcv_cache __read_mostly;
/* table of registered CAN protocols */
static struct can_proto *proto_tab[CAN_NPROTO] __read_mostly;
static const struct can_proto *proto_tab[CAN_NPROTO] __read_mostly;
static DEFINE_MUTEX(proto_tab_lock);
struct timer_list can_stattimer; /* timer for statistics update */
@ -115,9 +115,9 @@ static void can_sock_destruct(struct sock *sk)
skb_queue_purge(&sk->sk_receive_queue);
}
static struct can_proto *can_try_module_get(int protocol)
static const struct can_proto *can_try_module_get(int protocol)
{
struct can_proto *cp;
const struct can_proto *cp;
rcu_read_lock();
cp = rcu_dereference(proto_tab[protocol]);
@ -132,7 +132,7 @@ static int can_create(struct net *net, struct socket *sock, int protocol,
int kern)
{
struct sock *sk;
struct can_proto *cp;
const struct can_proto *cp;
int err = 0;
sock->state = SS_UNCONNECTED;
@ -691,7 +691,7 @@ drop:
* -EBUSY protocol already in use
* -ENOBUF if proto_register() fails
*/
int can_proto_register(struct can_proto *cp)
int can_proto_register(const struct can_proto *cp)
{
int proto = cp->protocol;
int err = 0;
@ -728,7 +728,7 @@ EXPORT_SYMBOL(can_proto_register);
* can_proto_unregister - unregister CAN transport protocol
* @cp: pointer to CAN protocol structure
*/
void can_proto_unregister(struct can_proto *cp)
void can_proto_unregister(const struct can_proto *cp)
{
int proto = cp->protocol;

2
net/can/bcm.c
View File

@ -1601,7 +1601,7 @@ static struct proto bcm_proto __read_mostly = {
.init = bcm_init,
};
static struct can_proto bcm_can_proto __read_mostly = {
static const struct can_proto bcm_can_proto = {
.type = SOCK_DGRAM,
.protocol = CAN_BCM,
.ops = &bcm_ops,

2
net/can/raw.c
View File

@ -774,7 +774,7 @@ static struct proto raw_proto __read_mostly = {
.init = raw_init,
};
static struct can_proto raw_can_proto __read_mostly = {
static const struct can_proto raw_can_proto = {
.type = SOCK_RAW,
.protocol = CAN_RAW,
.ops = &raw_ops,