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genetlink: add function genl_has_listeners() 

This function is the counterpart of the function netlink_has_listeners().

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Dichtel 2014-09-18 10:31:03 +02:00 committed by David S. Miller
parent b3f2512ecd
commit 0d566379c5
1 changed files with 8 additions and 0 deletions
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8
include/net/genetlink.h
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@ -394,4 +394,12 @@ static inline int genl_set_err(struct genl_family *family, struct net *net,
return netlink_set_err(net->genl_sock, portid, group, code);
}
static inline int genl_has_listeners(struct genl_family *family,
struct sock *sk, unsigned int group)
{
if (WARN_ON_ONCE(group >= family->n_mcgrps))
return -EINVAL;
group = family->mcgrp_offset + group;
return netlink_has_listeners(sk, group);
}
#endif /* __NET_GENERIC_NETLINK_H */