diff --git a/drivers/base/sync.c b/drivers/base/sync.c
index 5e89195..9bc0da5 100644
--- a/drivers/base/sync.c
+++ b/drivers/base/sync.c
@@ -15,6 +15,7 @@
  */
 
 #include <linux/debugfs.h>
+#include <linux/export.h>
 #include <linux/file.h>
 #include <linux/fs.h>
 #include <linux/kernel.h>
@@ -64,6 +65,7 @@
 
 	return obj;
 }
+EXPORT_SYMBOL(sync_timeline_create);
 
 static void sync_timeline_free(struct sync_timeline *obj)
 {
@@ -94,6 +96,7 @@
 	else
 		sync_timeline_signal(obj);
 }
+EXPORT_SYMBOL(sync_timeline_destroy);
 
 static void sync_timeline_add_pt(struct sync_timeline *obj, struct sync_pt *pt)
 {
@@ -152,6 +155,7 @@
 		sync_fence_signal_pt(pt);
 	}
 }
+EXPORT_SYMBOL(sync_timeline_signal);
 
 struct sync_pt *sync_pt_create(struct sync_timeline *parent, int size)
 {
@@ -169,6 +173,7 @@
 
 	return pt;
 }
+EXPORT_SYMBOL(sync_pt_create);
 
 void sync_pt_free(struct sync_pt *pt)
 {
@@ -179,6 +184,7 @@
 
 	kfree(pt);
 }
+EXPORT_SYMBOL(sync_pt_free);
 
 /* call with pt->parent->active_list_lock held */
 static int _sync_pt_has_signaled(struct sync_pt *pt)
@@ -284,6 +290,7 @@
 
 	return fence;
 }
+EXPORT_SYMBOL(sync_fence_create);
 
 static int sync_fence_copy_pts(struct sync_fence *dst, struct sync_fence *src)
 {
@@ -331,16 +338,19 @@
 	fput(file);
 	return NULL;
 }
+EXPORT_SYMBOL(sync_fence_fdget);
 
 void sync_fence_put(struct sync_fence *fence)
 {
 	fput(fence->file);
 }
+EXPORT_SYMBOL(sync_fence_put);
 
 void sync_fence_install(struct sync_fence *fence, int fd)
 {
 	fd_install(fd, fence->file);
 }
+EXPORT_SYMBOL(sync_fence_install);
 
 static int sync_fence_get_status(struct sync_fence *fence)
 {
@@ -388,6 +398,7 @@
 	kfree(fence);
 	return NULL;
 }
+EXPORT_SYMBOL(sync_fence_merge);
 
 static void sync_fence_signal_pt(struct sync_pt *pt)
 {
@@ -447,6 +458,7 @@
 
 	return err;
 }
+EXPORT_SYMBOL(sync_fence_wait_async);
 
 int sync_fence_cancel_async(struct sync_fence *fence,
 			     struct sync_fence_waiter *waiter)
@@ -475,6 +487,7 @@
 	spin_unlock_irqrestore(&fence->waiter_list_lock, flags);
 	return ret;
 }
+EXPORT_SYMBOL(sync_fence_cancel_async);
 
 int sync_fence_wait(struct sync_fence *fence, long timeout)
 {
@@ -500,6 +513,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(sync_fence_wait);
 
 static int sync_fence_release(struct inode *inode, struct file *file)
 {