arch/um/include/asm/smp.h - github.com/raspberrypi/raspberrypi-kernel - Gitiles

 /* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_SMP_H
 #define __UM_SMP_H

 #define hard_smp_processor_id()		0

 #endif
	/* SPDX-License-Identifier: GPL-2.0 */
	#ifndef __UM_SMP_H
	#define __UM_SMP_H

	#define hard_smp_processor_id() 0

	#endif