IGC_RING_FLAG_TX_HWTSTAMP
if (unlikely(test_bit(IGC_RING_FLAG_TX_HWTSTAMP, &tx_ring->flags) &&
if (test_bit(IGC_RING_FLAG_TX_HWTSTAMP, &tx_ring->flags)) {
if (test_bit(IGC_RING_FLAG_TX_HWTSTAMP, &tx_ring->flags)) {
clear_bit(IGC_RING_FLAG_TX_HWTSTAMP, &tx_ring->flags);
set_bit(IGC_RING_FLAG_TX_HWTSTAMP, &tx_ring->flags);