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netfilter: nfnetlink: don't probe module if it exists

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nfnetlink_bind request_module()s all the time as nfnetlink_get_subsys()
shifts the argument by 8 to obtain the subsys id.

So using type instead of type << 8 always returns NULL.

Fixes: 03292745b0 ("netlink: add nlk->netlink_bind hook for module auto-loading")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2015-10-27 13:20:25 +01:00 committed by Pablo Neira Ayuso
parent 94f9cd8143
commit dbc3617f4c
1 changed files with 1 additions and 1 deletions
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2
net/netfilter/nfnetlink.c
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@ -492,7 +492,7 @@ static int nfnetlink_bind(struct net *net, int group)
type = nfnl_group2type[group];
rcu_read_lock();
ss = nfnetlink_get_subsys(type);
ss = nfnetlink_get_subsys(type << 8);
rcu_read_unlock();
if (!ss)
request_module("nfnetlink-subsys-%d", type);