Cregit: Linux 6.7: irq

Contributors: 6
Author	Tokens	Token Proportion	Commits	Commit Proportion
David Howells	53	68.83%	1	14.29%
Christoph Lameter	10	12.99%	1	14.29%
Jaroslav Kysela	5	6.49%	1	14.29%
Linus Torvalds (pre-git)	4	5.19%	2	28.57%
Arnd Bergmann	3	3.90%	1	14.29%
Thomas Gleixner	2	2.60%	1	14.29%
Total	77		7

/* SPDX-License-Identifier: GPL-2.0-or-later */
/* Fallback per-CPU frame pointer holder
 *
 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 */

#ifndef _ASM_GENERIC_IRQ_REGS_H
#define _ASM_GENERIC_IRQ_REGS_H

#include <linux/percpu.h>

/*
 * Per-cpu current frame pointer - the location of the last exception frame on
 * the stack
 */
DECLARE_PER_CPU(struct pt_regs *, __irq_regs);

static inline struct pt_regs *get_irq_regs(void)
{
	return __this_cpu_read(__irq_regs);
}

static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs)
{
	struct pt_regs *old_regs;

	old_regs = __this_cpu_read(__irq_regs);
	__this_cpu_write(__irq_regs, new_regs);
	return old_regs;
}

#endif /* _ASM_GENERIC_IRQ_REGS_H */

irq_regs.h