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netlink: do not store start function in netlink_cb

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->start() is called once when dump is being initialized, there is no
need to store it in netlink_cb.

Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Florian Westphal 2018-07-24 12:47:56 +02:00 • committed by David S. Miller
commit 3730cf4dd7
2 changed files with 2 additions and 4 deletions
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5
net/netlink/af_netlink.c
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@ -2300,7 +2300,6 @@ int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
cb = &nlk->cb;
memset(cb, 0, sizeof(*cb));
cb->start = control->start;
cb->dump = control->dump;
cb->done = control->done;
cb->nlh = nlh;
@ -2309,8 +2308,8 @@ int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
cb->min_dump_alloc = control->min_dump_alloc;
cb->skb = skb;
if (cb->start) {
ret = cb->start(cb);
if (control->start) {
ret = control->start(cb);
if (ret)
goto error_put;
}