dma-direct: remove the dma_handle argument to __dma_direct_alloc_pages

The argument isn't used anywhere, so stop passing it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>

include/linux/dma-direct.h

@@ -67,6 +67,6 @@ void *dma_direct_alloc_pages(struct device *dev, size_t size,
 void dma_direct_free_pages(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs);
 struct page *__dma_direct_alloc_pages(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs);
+		gfp_t gfp, unsigned long attrs);
 int dma_direct_supported(struct device *dev, u64 mask);
 #endif /* _LINUX_DMA_DIRECT_H */

kernel/dma/direct.c

@@ -83,7 +83,7 @@ static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
 }
 
 struct page *__dma_direct_alloc_pages(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+		gfp_t gfp, unsigned long attrs)
 {
 	size_t alloc_size = PAGE_ALIGN(size);
 	int node = dev_to_node(dev);
@@ -131,7 +131,7 @@ void *dma_direct_alloc_pages(struct device *dev, size_t size,
 	struct page *page;
 	void *ret;
 
-	page = __dma_direct_alloc_pages(dev, size, dma_handle, gfp, attrs);
+	page = __dma_direct_alloc_pages(dev, size, gfp, attrs);
 	if (!page)
 		return NULL;
 

kernel/dma/remap.c

@@ -226,7 +226,7 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		goto done;
 	}
 
-	page = __dma_direct_alloc_pages(dev, size, dma_handle, flags, attrs);
+	page = __dma_direct_alloc_pages(dev, size, flags, attrs);
 	if (!page)
 		return NULL;