RFCOMM_SKB_RESERVE  576 net/bluetooth/rfcomm/sock.c 		skb = sock_alloc_send_skb(sk, size + RFCOMM_SKB_RESERVE,
RFCOMM_SKB_RESERVE  783 net/bluetooth/rfcomm/tty.c 		skb = rfcomm_wmalloc(dev, size + RFCOMM_SKB_RESERVE, GFP_ATOMIC);