#define dev_err(x, fmt, ...) dev_printf(ERR, fmt, ##__VA_ARGS__)
#define dev_info(x, fmt, ...) dev_printf(INFO, fmt, ##__VA_ARGS__)
#define dev_err(x, fmt, ...) dev_printf(ERR, fmt, ##__VA_ARGS__)
#define dev_info(x, fmt, ...) dev_printf(INFO, fmt, ##__VA_ARGS__)