ath6kl_wmi_data_hdr_add
ret = ath6kl_wmi_data_hdr_add(ar->wmi, skb,
ret = ath6kl_wmi_data_hdr_add(wmi, skb, OPT_MSGTYPE, false,
int ath6kl_wmi_data_hdr_add(struct wmi *wmi, struct sk_buff *skb,