[PATCH v10 2/9] dma-buf: dma-heap: export declared functions

Jens Wiklander posted 9 patches 4 months ago
There is a newer version of this series
[PATCH v10 2/9] dma-buf: dma-heap: export declared functions
Posted by Jens Wiklander 4 months ago
Export the dma-buf heap functions to allow them to be used by the OP-TEE
driver. The OP-TEE driver wants to register and manage specific secure
DMA heaps with it.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
---
 drivers/dma-buf/dma-heap.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c
index 3cbe87d4a464..cdddf0e24dce 100644
--- a/drivers/dma-buf/dma-heap.c
+++ b/drivers/dma-buf/dma-heap.c
@@ -202,6 +202,7 @@ void *dma_heap_get_drvdata(struct dma_heap *heap)
 {
 	return heap->priv;
 }
+EXPORT_SYMBOL(dma_heap_get_drvdata);
 
 /**
  * dma_heap_get_name - get heap name
@@ -214,6 +215,7 @@ const char *dma_heap_get_name(struct dma_heap *heap)
 {
 	return heap->name;
 }
+EXPORT_SYMBOL(dma_heap_get_name);
 
 /**
  * dma_heap_add - adds a heap to dmabuf heaps
@@ -303,6 +305,7 @@ struct dma_heap *dma_heap_add(const struct dma_heap_export_info *exp_info)
 	kfree(heap);
 	return err_ret;
 }
+EXPORT_SYMBOL(dma_heap_add);
 
 static char *dma_heap_devnode(const struct device *dev, umode_t *mode)
 {
-- 
2.43.0
Re: [PATCH v10 2/9] dma-buf: dma-heap: export declared functions
Posted by Sumit Garg 3 months, 3 weeks ago
On Tue, Jun 10, 2025 at 03:13:46PM +0200, Jens Wiklander wrote:
> Export the dma-buf heap functions to allow them to be used by the OP-TEE
> driver. The OP-TEE driver wants to register and manage specific secure
> DMA heaps with it.
> 
> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
> ---
>  drivers/dma-buf/dma-heap.c | 3 +++
>  1 file changed, 3 insertions(+)

Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>

-Sumit

> 
> diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c
> index 3cbe87d4a464..cdddf0e24dce 100644
> --- a/drivers/dma-buf/dma-heap.c
> +++ b/drivers/dma-buf/dma-heap.c
> @@ -202,6 +202,7 @@ void *dma_heap_get_drvdata(struct dma_heap *heap)
>  {
>  	return heap->priv;
>  }
> +EXPORT_SYMBOL(dma_heap_get_drvdata);
>  
>  /**
>   * dma_heap_get_name - get heap name
> @@ -214,6 +215,7 @@ const char *dma_heap_get_name(struct dma_heap *heap)
>  {
>  	return heap->name;
>  }
> +EXPORT_SYMBOL(dma_heap_get_name);
>  
>  /**
>   * dma_heap_add - adds a heap to dmabuf heaps
> @@ -303,6 +305,7 @@ struct dma_heap *dma_heap_add(const struct dma_heap_export_info *exp_info)
>  	kfree(heap);
>  	return err_ret;
>  }
> +EXPORT_SYMBOL(dma_heap_add);
>  
>  static char *dma_heap_devnode(const struct device *dev, umode_t *mode)
>  {
> -- 
> 2.43.0
>