Cleanup: Move lttng-modules instrumentation headers

[lttng-modules.git] / wrapper / irqdesc.c

diff --git a/wrapper/irqdesc.c b/wrapper/irqdesc.c
index be6cf3ba8a8ce6a4ab03a6b5c68ddc3dff3a0fb8..397624b564c2617d8fd1d19818a1d32a4b28a7d0 100644 (file)
--- a/wrapper/irqdesc.c
+++ b/wrapper/irqdesc.c
@@ -1,15 +1,18 @@
-/* SPDX-License-Identifier: (GPL-2.0 OR LGPL-2.1)
+/* SPDX-License-Identifier: (GPL-2.0-only OR LGPL-2.1-only)
  *
  * wrapper/irqdesc.c
  *
  * 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>
+
+#if (defined(CONFIG_KALLSYMS) \
+       && (LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0)))
 
 #include <linux/kallsyms.h>
 #include <linux/interrupt.h>
@@ -31,6 +34,7 @@ struct irq_desc *wrapper_irq_to_desc(unsigned int irq)
                return NULL;
        }
 }
+EXPORT_SYMBOL_GPL(wrapper_irq_to_desc);
 
 #else
 
@@ -41,5 +45,6 @@ struct irq_desc *wrapper_irq_to_desc(unsigned int irq)
 {
        return irq_to_desc(irq);
 }
+EXPORT_SYMBOL_GPL(wrapper_irq_to_desc);
 
 #endif