reserve_mem_find_by_name
if (reserve_mem_find_by_name(mem_name, &start, &size)) {
int reserve_mem_find_by_name(const char *name, phys_addr_t *start, phys_addr_t *size);
if (!reserve_mem_find_by_name(tok, &start, &size)) {
EXPORT_SYMBOL_GPL(reserve_mem_find_by_name);
if (reserve_mem_find_by_name(name, &start, &tmp))