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[NETLINK]: Make netlink_callback->done() optional

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Most netlink families make no use of the done() callback, making
it optional gets rid of all unnecessary dummy implementations.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2005-11-10 02:25:52 +01:00 committed by Thomas Graf
parent bfa83a9e03
commit a8f74b2288
5 changed files with 8 additions and 25 deletions
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8
net/core/rtnetlink.c
View File

@ -462,11 +462,6 @@ void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change)
netlink_broadcast(rtnl, skb, 0, RTNLGRP_LINK, GFP_KERNEL);
}
static int rtnetlink_done(struct netlink_callback *cb)
{
return 0;
}
/* Protected by RTNL sempahore. */
static struct rtattr **rta_buf;
static int rtattr_max;
@ -533,8 +528,7 @@ rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
goto err_inval;
if ((*errp = netlink_dump_start(rtnl, skb, nlh,
link->dumpit,
rtnetlink_done)) != 0) {
link->dumpit, NULL)) != 0) {
return -1;
}
rlen = NLMSG_ALIGN(nlh->nlmsg_len);

9
net/ipv4/inet_diag.c
View File

@ -724,12 +724,6 @@ static int inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
return skb->len;
}
static int inet_diag_dump_done(struct netlink_callback *cb)
{
return 0;
}
static __inline__ int
inet_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
@ -760,8 +754,7 @@ inet_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
goto err_inval;
}
return netlink_dump_start(idiagnl, skb, nlh,
inet_diag_dump,
inet_diag_dump_done);
inet_diag_dump, NULL);
} else {
return inet_diag_get_exact(skb, nlh);
}

2
net/ipv6/route.c
View File

@ -1710,7 +1710,7 @@ static void fib6_dump_end(struct netlink_callback *cb)
static int fib6_dump_done(struct netlink_callback *cb)
{
fib6_dump_end(cb);
return cb->done(cb);
return cb->done ? cb->done(cb) : 0;
}
int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)

6
net/netlink/af_netlink.c
View File

@ -427,7 +427,8 @@ static int netlink_release(struct socket *sock)
spin_lock(&nlk->cb_lock);
if (nlk->cb) {
nlk->cb->done(nlk->cb);
if (nlk->cb->done)
nlk->cb->done(nlk->cb);
netlink_destroy_callback(nlk->cb);
nlk->cb = NULL;
}
@ -1322,7 +1323,8 @@ static int netlink_dump(struct sock *sk)
skb_queue_tail(&sk->sk_receive_queue, skb);
sk->sk_data_ready(sk, skb->len);
cb->done(cb);
if (cb->done)
cb->done(cb);
nlk->cb = NULL;
spin_unlock(&nlk->cb_lock);

8
net/xfrm/xfrm_user.c
View File

@ -948,11 +948,6 @@ static struct xfrm_link {
[XFRM_MSG_FLUSHPOLICY - XFRM_MSG_BASE] = { .doit = xfrm_flush_policy },
};
static int xfrm_done(struct netlink_callback *cb)
{
return 0;
}
static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
{
struct rtattr *xfrma[XFRMA_MAX];
@ -990,8 +985,7 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *err
goto err_einval;
if ((*errp = netlink_dump_start(xfrm_nl, skb, nlh,
link->dump,
xfrm_done)) != 0) {
link->dump, NULL)) != 0) {
return -1;
}
rlen = NLMSG_ALIGN(nlh->nlmsg_len);