The CMA dma-buf heap uses the dev_get_cma_area() function to retrieve the default contiguous area.
Now that this function is no longer inlined, and since we want to turn the CMA heap into a module, let's export it.
Signed-off-by: Maxime Ripard mripard@kernel.org --- kernel/dma/contiguous.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c index a4279d800d4658bf1c33b9b1da100eee1367d42f..ad50512d71d3088a73e4b1ac02d6e6122374888e 100644 --- a/kernel/dma/contiguous.c +++ b/kernel/dma/contiguous.c @@ -106,10 +106,11 @@ struct cma *dev_get_cma_area(struct device *dev) if (dev && dev->cma_area) return dev->cma_area;
return dma_contiguous_default_area; } +EXPORT_SYMBOL_GPL(dev_get_cma_area);
#ifdef CONFIG_DMA_NUMA_CMA
static struct cma *dma_contiguous_numa_area[MAX_NUMNODES]; static phys_addr_t numa_cma_size[MAX_NUMNODES] __initdata;