X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=wrapper%2Fftrace.h;h=de618734e44ee4cf4e6f587291dad59f37825a07;hb=444a21f24b49a06d6162fef87d55be2915ce87dd;hp=6fd1d55c11a391872c17360c280f936e6158b8cd;hpb=5a2f5e92e422d87a28581ba97e6b1789ff743bc6;p=lttng-modules.git

diff --git a/wrapper/ftrace.h b/wrapper/ftrace.h
index 6fd1d55c..de618734 100644
--- a/wrapper/ftrace.h
+++ b/wrapper/ftrace.h
@@ -26,6 +26,10 @@
  */
 
 #include <linux/ftrace.h>
+#include <linux/version.h>
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0))
+#include <../kernel/trace/trace.h>
+#endif
 
 #ifdef CONFIG_KALLSYMS
 
@@ -43,7 +47,7 @@ int wrapper_register_ftrace_function_probe(char *glob,
 	if (register_ftrace_function_probe_sym) {
 		return register_ftrace_function_probe_sym(glob, ops, data);
 	} else {
-		printk(KERN_WARNING "LTTng: register_ftrace_function_probe symbol lookup failed.\n");
+		printk_once(KERN_WARNING "LTTng: register_ftrace_function_probe symbol lookup failed.\n");
 		return -EINVAL;
 	}
 }
@@ -59,7 +63,7 @@ void wrapper_unregister_ftrace_function_probe(char *glob,
 	if (unregister_ftrace_function_probe_sym) {
 		unregister_ftrace_function_probe_sym(glob, ops, data);
 	} else {
-		printk(KERN_WARNING "LTTng: unregister_ftrace_function_probe symbol lookup failed.\n");
+		printk_once(KERN_WARNING "LTTng: unregister_ftrace_function_probe symbol lookup failed.\n");
 		WARN_ON(1);
 	}
 }