bluetooth: remove warnings

#include <fcntl.h>

#include <utils/Log.h>

namespace {

const size_t preamble_size_for_type[] = {

    0, HCI_COMMAND_PREAMBLE_SIZE, HCI_ACL_PREAMBLE_SIZE, HCI_SCO_PREAMBLE_SIZE,

    HCI_EVENT_PREAMBLE_SIZE};

const size_t packet_length_offset_for_type[] = {

    0, HCI_LENGTH_OFFSET_CMD, HCI_LENGTH_OFFSET_ACL, HCI_LENGTH_OFFSET_SCO,

    HCI_LENGTH_OFFSET_EVT};

size_t HciGetPacketLengthForType(HciPacketType type, const uint8_t* preamble) {

  size_t offset = packet_length_offset_for_type[type];

  if (type != HCI_PACKET_TYPE_ACL_DATA) return preamble[offset];

  return (((preamble[offset + 1]) << 8) | preamble[offset]);

}

}  // namespace

namespace android {

namespace hardware {

namespace bluetooth {

static char sample_data1[100] = "A point is that which has no part.";

static char sample_data2[100] = "A line is breadthless length.";

static char sample_data3[100] = "The ends of a line are points.";

static char acl_data[100] =

    "A straight line is a line which lies evenly with the points on itself.";

static char sco_data[100] =

    "A surface is that which has length and breadth only.";

static char event_data[100] = "The edges of a surface are lines.";

MATCHER_P3(HidlVecMatches, preamble, preamble_length, payload, "") {