X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=wrapper%2Firqdesc.c;h=cd506166717e4bd6a5b960c019196ba992d81cca;hb=82151df0af0a93508975b15fc26f1fe151d8c6c3;hp=6ef86c2d5416b7e63c746babb843640f9c4a9060;hpb=5a2f5e92e422d87a28581ba97e6b1789ff743bc6;p=lttng-modules.git

diff --git a/wrapper/irqdesc.c b/wrapper/irqdesc.c
index 6ef86c2d..cd506166 100644
--- a/wrapper/irqdesc.c
+++ b/wrapper/irqdesc.c
@@ -3,7 +3,7 @@
  *
  * 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>
  *
@@ -22,7 +22,10 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#ifdef CONFIG_KALLSYMS
+#include <lttng-kernel-version.h>
+
+#if (defined(CONFIG_KALLSYMS) \
+	&& (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,4,0)))
 
 #include <linux/kallsyms.h>
 #include <linux/interrupt.h>
@@ -40,7 +43,7 @@ struct irq_desc *wrapper_irq_to_desc(unsigned int irq)
 	if (irq_to_desc_sym) {
 		return irq_to_desc_sym(irq);
 	} else {
-		printk(KERN_WARNING "LTTng: irq_to_desc symbol lookup failed.\n");
+		printk_once(KERN_WARNING "LTTng: irq_to_desc symbol lookup failed.\n");
 		return NULL;
 	}
 }