Namespace kernel version macros

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

diff --git a/wrapper/irqdesc.c b/wrapper/irqdesc.c
index 1d6e2890d395a4b5f189cf06a73aab67407fa41e..6dcfaf99a7f89f5443cddfbb0e0888554d26fadc 100644 (file)
--- a/wrapper/irqdesc.c
+++ b/wrapper/irqdesc.c
@@ -4,12 +4,17 @@
  *
  * 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 and removed in 5.11.
  *
  * 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) && \
+       ((LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,11,0)) || \
+        (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,4,0))))
 
 #include <linux/kallsyms.h>
 #include <linux/interrupt.h>
@@ -31,6 +36,7 @@ struct irq_desc *wrapper_irq_to_desc(unsigned int irq)
                return NULL;
        }
 }
+EXPORT_SYMBOL_GPL(wrapper_irq_to_desc);
 
 #else
 
@@ -41,5 +47,6 @@ struct irq_desc *wrapper_irq_to_desc(unsigned int irq)
 {
        return irq_to_desc(irq);
 }
+EXPORT_SYMBOL_GPL(wrapper_irq_to_desc);
 
 #endif