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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/* Generic task switch macro wrapper.3 *4 * It should be possible to use these on really simple architectures,5 * but it serves more as a starting point for new ports.6 *7 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.8 * Written by David Howells (dhowells@redhat.com)9 */10#ifndef __ASM_GENERIC_SWITCH_TO_H11#define __ASM_GENERIC_SWITCH_TO_H12 13#include <linux/thread_info.h>14 15/*16 * Context switching is now performed out-of-line in switch_to.S17 */18extern struct task_struct *__switch_to(struct task_struct *,19 struct task_struct *);20 21#define switch_to(prev, next, last) \22 do { \23 ((last) = __switch_to((prev), (next))); \24 } while (0)25 26#endif /* __ASM_GENERIC_SWITCH_TO_H */27