X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=lttng-context-prio.c;h=c786f5d312d644094da09479e61b9991a8e838f5;hb=9e52289bbd4698c76a4c6bf66d92ce04accdd54a;hp=367f7bd67ca04f7dbe89788417b8f807f5a60406;hpb=bf5a011d7256c26f8731be6b9983462f02b7c0cb;p=lttng-modules.git

diff --git a/lttng-context-prio.c b/lttng-context-prio.c
index 367f7bd6..c786f5d3 100644
--- a/lttng-context-prio.c
+++ b/lttng-context-prio.c
@@ -29,6 +29,19 @@ int wrapper_task_prio_init(void)
 	return 0;
 }
 
+/*
+ * Canary function to check for 'task_prio()' at compile time.
+ *
+ * From 'include/linux/sched.h':
+ *
+ *   extern int task_prio(const struct task_struct *p);
+ */
+__attribute__((unused)) static
+int __canary__task_prio(const struct task_struct *p)
+{
+	return task_prio(p);
+}
+
 static
 size_t prio_get_size(size_t offset)
 {