[lttng-modules.git] / include / wrapper / irqdesc.h

/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
 *
 * wrapper/irqdesc.h
 *
 * wrapper around irq_to_desc. Using KALLSYMS to get its address when
 * available, else we need to have a kernel that exports this function to GPL
 * modules.
 *
 * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 */

#ifndef _LTTNG_WRAPPER_IRQDESC_H
#define _LTTNG_WRAPPER_IRQDESC_H

#include <linux/interrupt.h>
#include <linux/irqnr.h>

struct irq_desc *wrapper_irq_to_desc(unsigned int irq);

/*
 * Canary function to check for 'irq_to_desc()' at compile time.
 *
 * From 'include/linux/irqnr.h':
 *
 *   extern struct irq_desc *irq_to_desc(unsigned int irq);
 */
static inline
struct irq_desc *__canary__irq_to_desc(unsigned int irq)
{
	return irq_to_desc(irq);
}

#endif /* _LTTNG_WRAPPER_IRQDESC_H */
Commit	Line	Data
b7cdc182	1	/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
9f36eaed	2	*
886d51a3	3	* wrapper/irqdesc.h
c337ddc2 MD	4	*
	5	* wrapper around irq_to_desc. Using KALLSYMS to get its address when
	6	* available, else we need to have a kernel that exports this function to GPL
	7	* modules.
	8	*
886d51a3	9	* Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
c337ddc2 MD	10	*/
c337ddc2 MD	11
9f36eaed MJ	12	#ifndef _LTTNG_WRAPPER_IRQDESC_H
	13	#define _LTTNG_WRAPPER_IRQDESC_H
	14
c337ddc2 MD	15	#include <linux/interrupt.h>
	16	#include <linux/irqnr.h>
	17
	18	struct irq_desc *wrapper_irq_to_desc(unsigned int irq);
	19
3dfec228 MJ	20	/*
	21	* Canary function to check for 'irq_to_desc()' at compile time.
	22	*
	23	* From 'include/linux/irqnr.h':
	24	*
	25	* extern struct irq_desc *irq_to_desc(unsigned int irq);
	26	*/
	27	static inline
	28	struct irq_desc *__canary__irq_to_desc(unsigned int irq)
	29	{
	30	return irq_to_desc(irq);
	31	}
	32
c337ddc2	33	#endif /* _LTTNG_WRAPPER_IRQDESC_H */