On Wed, Aug 13, 2025 at 11:13 PM Sumit Garg sumit.garg@kernel.org wrote:

On Wed, Aug 13, 2025 at 08:02:51AM +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 Reviewed-by: Sumit Garg sumit.garg@oss.qualcomm.com

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

Can we get an ack from DMAbuf maintainers here? With that we should be able to queue this patch-set for linux-next targetting the 6.18 merge window.

-Sumit

Reviewed-by: T.J. Mercier tjmercier@google.com

Sorry I haven't been able to participate much upstream lately.

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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