fill_frame_info
.fill_frame_info = hsr_fill_frame_info,
.fill_frame_info = prp_fill_frame_info,
ret = hsr->proto_ops->fill_frame_info(proto, skb, frame);
if (fill_frame_info(&frame, skb, port) < 0)
int (*fill_frame_info)(__be16 proto, struct sk_buff *skb,