Fix compil. bug when nested locking is disabled

This patch fixes a compilation bug that occurs
when nested locking is disabled.

2 files changed, 23 insertions, 1 deletions

diff --git a/include/litmus/edf_common.h b/include/litmus/edf_common.h
index 84cec2099a23..e4b8b91e8d01 100644
--- a/include/litmus/edf_common.h
+++ b/include/litmus/edf_common.h
@@ -26,8 +26,10 @@ int edf_max_heap_base_priority_order(struct binheap_node *a,
                                 struct binheap_node *b);
 int edf_min_heap_base_priority_order(struct binheap_node *a,
                                 struct binheap_node *b);
+int edf_preemption_needed(rt_domain_t* rt, struct task_struct *t);
+#ifdef CONFIG_LITMUS_NESTED_LOCKING
 int __edf_higher_prio(struct task_struct* first, comparison_mode_t first_mode,
                                 struct task_struct* second, comparison_mode_t second_mode);
-int edf_preemption_needed(rt_domain_t* rt, struct task_struct *t);
+#endif
 
 #endif
diff --git a/litmus/locking.c b/litmus/locking.c
index 6302bd47304b..35140c26573d 100644
--- a/litmus/locking.c
+++ b/litmus/locking.c
@@ -1042,4 +1042,24 @@ asmlinkage long sys_litmus_unlock(int sem_od)
         return -ENOSYS;
 }
 
+asmlinkage long sys_litmus_should_yield_lock(int lock_od)
+{
+        return -ENOSYS;
+}
+
+asmlinkage long sys_litmus_dgl_lock(void* __user usr_dgl_ods, int dgl_size)
+{
+        return -ENOSYS;
+}
+
+asmlinkage long sys_litmus_dgl_unlock(void* __user usr_dgl_ods, int dgl_size)
+{
+        return -ENOSYS;
+}
+
+asmlinkage long sys_litmus_dgl_should_yield_lock(void* __user usr_dgl_ods,
+                                int dgl_size)
+{
+        return -ENOSYS;
+}
 #endif /* end CONFIG_LITMUS_LOCKING */