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net/ipv6: Remove ip_idx arg to in6_dump_addrs 

ip_idx is always 0 going into in6_dump_addrs; it is passed as a pointer
to save the last good index into cb. Since cb is already argument to
in6_dump_addrs, just save the value there.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2018-10-19 12:45:28 -07:00 committed by David S. Miller
parent 1c98eca412
commit fe884c2be0
1 changed files with 6 additions and 10 deletions
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16
net/ipv6/addrconf.c
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@ -4955,14 +4955,13 @@ static int inet6_fill_ifacaddr(struct sk_buff *skb, struct ifacaddr6 *ifaca,
/* called with rcu_read_lock() */
static int in6_dump_addrs(struct inet6_dev *idev, struct sk_buff *skb,
struct netlink_callback *cb,
int s_ip_idx, int *p_ip_idx,
struct netlink_callback *cb, int s_ip_idx,
struct inet6_fill_args *fillargs)
{
struct ifmcaddr6 *ifmca;
struct ifacaddr6 *ifaca;
int ip_idx = 0;
int err = 1;
int ip_idx = *p_ip_idx;
read_lock_bh(&idev->lock);
switch (fillargs->type) {
@ -5012,7 +5011,7 @@ static int in6_dump_addrs(struct inet6_dev *idev, struct sk_buff *skb,
break;
}
read_unlock_bh(&idev->lock);
*p_ip_idx = ip_idx;
cb->args[2] = ip_idx;
return err;
}
@ -5081,16 +5080,15 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
};
struct net *net = sock_net(skb->sk);
struct net *tgt_net = net;
int idx, s_idx, s_ip_idx;
int h, s_h;
int idx, ip_idx;
int s_idx, s_ip_idx;
struct net_device *dev;
struct inet6_dev *idev;
struct hlist_head *head;
s_h = cb->args[0];
s_idx = idx = cb->args[1];
s_ip_idx = ip_idx = cb->args[2];
s_ip_idx = cb->args[2];
if (cb->strict_check) {
int err;
@ -5111,12 +5109,11 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
goto cont;
if (h > s_h || idx > s_idx)
s_ip_idx = 0;
ip_idx = 0;
idev = __in6_dev_get(dev);
if (!idev)
goto cont;
if (in6_dump_addrs(idev, skb, cb, s_ip_idx, &ip_idx,
if (in6_dump_addrs(idev, skb, cb, s_ip_idx,
&fillargs) < 0)
goto done;
cont:
@ -5127,7 +5124,6 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
rcu_read_unlock();
cb->args[0] = h;
cb->args[1] = idx;
cb->args[2] = ip_idx;
if (fillargs.netnsid >= 0)
put_net(tgt_net);