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netfilter: Remove explicit rcu_read_lock in nf_hook_slow

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All of the callers of nf_hook_slow already hold the rcu_read_lock, so this
cleanup removes the recursive call.  This is just a cleanup, as the locking
code gracefully handles this situation.

Signed-off-by: Aaron Conole <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
This commit is contained in:
Aaron Conole 2016-09-21 11:35:04 -04:00 • committed by Pablo Neira Ayuso
commit e2361cb90a
14 changed files with 19 additions and 19 deletions
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2
net/bridge/netfilter/ebt_redirect.c
View file

@ -24,7 +24,7 @@ ebt_redirect_tg(struct sk_buff *skb, const struct xt_action_param *par)
return EBT_DROP;
if (par->hooknum != NF_BR_BROUTING)
/* rcu_read_lock()ed by nf_hook_slow */
/* rcu_read_lock()ed by nf_hook_thresh */
ether_addr_copy(eth_hdr(skb)->h_dest,
br_port_get_rcu(par->in)->br->dev->dev_addr);
else

2
net/bridge/netfilter/ebtables.c
View file

@ -146,7 +146,7 @@ ebt_basic_match(const struct ebt_entry *e, const struct sk_buff *skb,
return 1;
if (NF_INVF(e, EBT_IOUT, ebt_dev_check(e->out, out)))
return 1;
/* rcu_read_lock()ed by nf_hook_slow */
/* rcu_read_lock()ed by nf_hook_thresh */
if (in && (p = br_port_get_rcu(in)) != NULL &&
NF_INVF(e, EBT_ILOGICALIN,
ebt_dev_check(e->logical_in, p->br->dev)))