[PATCH 1/3] dma-buf: add missing EXPORT_SYMBOL_GPL() for dma heaps

[Hyesoo Yu <hyesoo.yu@xxxxxxxxxxx>]

The interface of dma heap is used from kernel module to
register dma heaps, otherwize we will get compile error.

Signed-off-by: Hyesoo Yu <hyesoo.yu@xxxxxxxxxxx>
---
 drivers/dma-buf/dma-heap.c           | 2 ++
 drivers/dma-buf/heaps/heap-helpers.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c
index afd22c9..cc6339c 100644
--- a/drivers/dma-buf/dma-heap.c
+++ b/drivers/dma-buf/dma-heap.c
@@ -189,6 +189,7 @@ void *dma_heap_get_drvdata(struct dma_heap *heap)
 {
 	return heap->priv;
 }
+EXPORT_SYMBOL_GPL(dma_heap_get_drvdata);
 
 struct dma_heap *dma_heap_add(const struct dma_heap_export_info *exp_info)
 {
@@ -272,6 +273,7 @@ struct dma_heap *dma_heap_add(const struct dma_heap_export_info *exp_info)
 	kfree(heap);
 	return err_ret;
 }
+EXPORT_SYMBOL_GPL(dma_heap_add);
 
 static char *dma_heap_devnode(struct device *dev, umode_t *mode)
 {
diff --git a/drivers/dma-buf/heaps/heap-helpers.c b/drivers/dma-buf/heaps/heap-helpers.c
index 9f964ca..741bae0 100644
--- a/drivers/dma-buf/heaps/heap-helpers.c
+++ b/drivers/dma-buf/heaps/heap-helpers.c
@@ -24,6 +24,7 @@ void init_heap_helper_buffer(struct heap_helper_buffer *buffer,
 	INIT_LIST_HEAD(&buffer->attachments);
 	buffer->free = free;
 }
+EXPORT_SYMBOL_GPL(init_heap_helper_buffer);
 
 struct dma_buf *heap_helper_export_dmabuf(struct heap_helper_buffer *buffer,
 					  int fd_flags)
@@ -37,6 +38,7 @@ struct dma_buf *heap_helper_export_dmabuf(struct heap_helper_buffer *buffer,
 
 	return dma_buf_export(&exp_info);
 }
+EXPORT_SYMBOL_GPL(heap_helper_export_dmabuf);
 
 static void *dma_heap_map_kernel(struct heap_helper_buffer *buffer)
 {
-- 
2.7.4