kmsg_dump_get_line
while (kmsg_dump_get_line(&iter, false, buf, sizeof(buf), &len)) {
while (kmsg_dump_get_line(&iter, true, line, sizeof(line), &len)) {
bool kmsg_dump_get_line(struct kmsg_dump_iter *iter, bool syslog,
while (kmsg_dump_get_line(&iter, 1, NULL, 0, NULL))
while (kmsg_dump_get_line(&iter, 1, buf, sizeof(buf), &len)) {
EXPORT_SYMBOL_GPL(kmsg_dump_get_line);