IEEE802154_MAC_CMD_SKB_SZ
skb = alloc_skb(IEEE802154_MAC_CMD_SKB_SZ, GFP_KERNEL);
skb = alloc_skb(IEEE802154_MAC_CMD_SKB_SZ + sizeof(frame.assoc_req_pl),
skb = alloc_skb(IEEE802154_MAC_CMD_SKB_SZ + sizeof(frame.disassoc_pl),
skb = alloc_skb(IEEE802154_MAC_CMD_SKB_SZ + sizeof(*assoc_resp_pl),