[ovs-dev] [PATCH net v2 1/2] genetlink: add function genl_has_listeners()
Nicolas Dichtel
nicolas.dichtel at 6wind.com
Thu Sep 18 08:31:03 UTC 2014
This function is the counterpart of the function netlink_has_listeners().
Signed-off-by: Nicolas Dichtel <nicolas.dichtel at 6wind.com>
---
v2: add patch 1/2
include/net/genetlink.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 93695f0e22a5..af10c2cf8a1d 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -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 */
--
2.1.0
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