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

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Message-ID: <aFFAFcSNtMM7d38w@sumit-X1>
Date: Tue, 17 Jun 2025 15:44:45 +0530
From: Sumit Garg <sumit.garg@...nel.org>
To: Jens Wiklander <jens.wiklander@...aro.org>
Cc: linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org,
	op-tee@...ts.trustedfirmware.org,
	linux-arm-kernel@...ts.infradead.org,
	Olivier Masse <olivier.masse@....com>,
	Thierry Reding <thierry.reding@...il.com>,
	Yong Wu <yong.wu@...iatek.com>,
	Sumit Semwal <sumit.semwal@...aro.org>,
	Benjamin Gaignard <benjamin.gaignard@...labora.com>,
	Brian Starkey <Brian.Starkey@....com>,
	John Stultz <jstultz@...gle.com>,
	"T . J . Mercier" <tjmercier@...gle.com>,
	Christian König <christian.koenig@....com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	azarrabi@....qualcomm.com, Simona Vetter <simona.vetter@...ll.ch>,
	Daniel Stone <daniel@...ishbar.org>,
	Rouven Czerwinski <rouven.czerwinski@...aro.org>,
	robin.murphy@....com
Subject: Re: [PATCH v10 2/9] dma-buf: dma-heap: export declared functions

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@...aro.org>
> ---
>  drivers/dma-buf/dma-heap.c | 3 +++
>  1 file changed, 3 insertions(+)

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