*
* 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.
+ * modules. This export was added to the 3.4 kernels.
*
* Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*/
-#ifdef CONFIG_KALLSYMS
+#include <lttng-kernel-version.h>
+#include <linux/module.h>
+
+#if (defined(CONFIG_KALLSYMS) \
+ && (LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0)))
#include <linux/kallsyms.h>
#include <linux/interrupt.h>
return NULL;
}
}
+EXPORT_SYMBOL_GPL(wrapper_irq_to_desc);
#else
{
return irq_to_desc(irq);
}
+EXPORT_SYMBOL_GPL(wrapper_irq_to_desc);
#endif