prb_reserve
if (!prb_reserve(&e, rb, &dest_r))
if (!prb_reserve(&e, prb, &r)) {
if (!prb_reserve(&e, prb, &r))
EXPORT_SYMBOL_IF_KUNIT(prb_reserve);
bool prb_reserve(struct prb_reserved_entry *e, struct printk_ringbuffer *rb,
if (prb_reserve(&e, tr->test_data->ringbuffer, &r)) {