oppanel_line_t
int64_t opal_write_oppanel(oppanel_line_t *lines, uint64_t num_lines);
int64_t opal_write_oppanel_async(uint64_t token, oppanel_line_t *lines,
oppanel_lines = kzalloc_objs(oppanel_line_t, num_lines);
static oppanel_line_t *oppanel_lines;