-#ifndef _LTTNG_WRAPPER_IRQDESC_H
-#define _LTTNG_WRAPPER_IRQDESC_H
-
-/*
- * Copyright (C) 2011 Mathieu Desnoyers (mathieu.desnoyers@efficios.com)
+/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+ *
+ * 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.
*
- * Dual LGPL v2.1/GPL v2 license.
+ * 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 */