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Ignore warnings about access to packed struct in MAVlink as the… (#9239) 

Ignore warnings about access to packed struct in MAVlink as the accessed member is actually aligned.
This commit is contained in:
Michael Keller 2019-11-29 02:51:58 +13:00 committed by GitHub
parent 4e11d1e382 52a66a24f9
commit 15c63c0fca
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 17 additions and 0 deletions
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17
lib/main/MAVLink/mavlink_helpers.h
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@ -81,9 +81,18 @@ MAVLINK_HELPER uint16_t mavlink_finalize_message_chan(mavlink_message_t* msg, ui
msg->seq = mavlink_get_channel_status(chan)->current_tx_seq;
mavlink_get_channel_status(chan)->current_tx_seq = mavlink_get_channel_status(chan)->current_tx_seq+1;
msg->checksum = crc_calculate(((const uint8_t*)(msg)) + 3, MAVLINK_CORE_HEADER_LEN);
// msg->checksum is actually aligned
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
crc_accumulate_buffer(&msg->checksum, _MAV_PAYLOAD(msg), msg->len);
#pragma GCC diagnostic pop
#if MAVLINK_CRC_EXTRA
// msg->checksum is actually aligned
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
crc_accumulate(crc_extra, &msg->checksum);
#pragma GCC diagnostic pop
#endif
mavlink_ck_a(msg) = (uint8_t)(msg->checksum & 0xFF);
mavlink_ck_b(msg) = (uint8_t)(msg->checksum >> 8);
@ -195,12 +204,20 @@ union __mavlink_bitfield {
MAVLINK_HELPER void mavlink_start_checksum(mavlink_message_t* msg)
{
// msg->checksum is actually aligned
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
crc_init(&msg->checksum);
#pragma GCC diagnostic pop
}
MAVLINK_HELPER void mavlink_update_checksum(mavlink_message_t* msg, uint8_t c)
{
// msg->checksum is actually aligned
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
crc_accumulate(c, &msg->checksum);
#pragma GCC diagnostic pop
}
/**