tipc_group_bc_snd_nxt
u16 tipc_group_bc_snd_nxt(struct tipc_group *grp);
msg_set_grp_bc_seqno(hdr, tipc_group_bc_snd_nxt(tsk->group));
u16 bc_snd_nxt = tipc_group_bc_snd_nxt(tsk->group);