--- zzzz-none-000/linux-3.10.107/include/rdma/rdma_netlink.h 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/include/rdma/rdma_netlink.h 2021-02-04 17:41:59.000000000 +0000 @@ -43,7 +43,7 @@ * Returns the allocated buffer on success and NULL on failure. */ void *ibnl_put_msg(struct sk_buff *skb, struct nlmsghdr **nlh, int seq, - int len, int client, int op); + int len, int client, int op, int flags); /** * Put a new attribute in a supplied skb. * @skb: The netlink skb. @@ -56,4 +56,32 @@ int ibnl_put_attr(struct sk_buff *skb, struct nlmsghdr *nlh, int len, void *data, int type); +/** + * Send the supplied skb to a specific userspace PID. + * @skb: The netlink skb + * @nlh: Header of the netlink message to send + * @pid: Userspace netlink process ID + * Returns 0 on success or a negative error code. + */ +int ibnl_unicast(struct sk_buff *skb, struct nlmsghdr *nlh, + __u32 pid); + +/** + * Send the supplied skb to a netlink group. + * @skb: The netlink skb + * @nlh: Header of the netlink message to send + * @group: Netlink group ID + * @flags: allocation flags + * Returns 0 on success or a negative error code. + */ +int ibnl_multicast(struct sk_buff *skb, struct nlmsghdr *nlh, + unsigned int group, gfp_t flags); + +/** + * Check if there are any listeners to the netlink group + * @group: the netlink group ID + * Returns 0 on success or a negative for no listeners. + */ +int ibnl_chk_listeners(unsigned int group); + #endif /* _RDMA_NETLINK_H */