W_SIZE
if (hdrs[i].offset % W_SIZE != 0) {
if (attr->size % W_SIZE != 0) {
action->remove_header.size = attr->size / W_SIZE;
if (hdrs[i].sz % W_SIZE != 0) {
stc_attr->insert_header.header_size / W_SIZE);
stc_attr->insert_header.insert_offset / W_SIZE);