RFCOMM_SKB_HEAD_RESERVE 41 include/net/bluetooth/rfcomm.h #define RFCOMM_SKB_RESERVE (RFCOMM_SKB_HEAD_RESERVE + RFCOMM_SKB_TAIL_RESERVE) RFCOMM_SKB_HEAD_RESERVE 580 net/bluetooth/rfcomm/sock.c skb_reserve(skb, RFCOMM_SKB_HEAD_RESERVE); RFCOMM_SKB_HEAD_RESERVE 788 net/bluetooth/rfcomm/tty.c skb_reserve(skb, RFCOMM_SKB_HEAD_RESERVE);