SHIELD_BOARD_INFO_INITIALIZED
if (test_bit(SHIELD_BOARD_INFO_INITIALIZED, &shield_dev->initialized_flags))
set_bit(SHIELD_BOARD_INFO_INITIALIZED, &shield_dev->initialized_flags);
if (!test_bit(SHIELD_BOARD_INFO_INITIALIZED, &shield_dev->initialized_flags))
if (test_bit(SHIELD_BOARD_INFO_INITIALIZED, &shield_dev->initialized_flags)) {