函数逻辑报告

函数名称：Check if cpu calibration delay is already known. For example,* some processors with multi-core sockets may have all cores* with the same calibration delay.* Architectures should override this function if a faster calibration* method is available.

函数原型：unsigned long __attribute__((weak))calibrate_delay_is_known(void)

返回类型：unsigned long

参数：无