ISNS_FLAG_REPLACE_REG
((flags & ISNS_FLAG_REPLACE_REG) == 0) ? 0 : 1);
((pdu->flags & ISNS_FLAG_REPLACE_REG) == ISNS_FLAG_REPLACE_REG);
flags = ISNS_FLAG_REPLACE_REG;
flags = ISNS_FLAG_REPLACE_REG;
ISNS_FLAG_REPLACE_REG;