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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/kernel/dma/virt.c
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@@ -4,7 +4,7 @@
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  */
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 #include <linux/export.h>
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 #include <linux/mm.h>
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-#include <linux/dma-mapping.h>
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+#include <linux/dma-map-ops.h>
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 #include <linux/scatterlist.h>
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 static void *dma_virt_alloc(struct device *dev, size_t size,
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@@ -13,7 +13,7 @@
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 {
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 	void *ret;
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-	ret = (void *)__get_free_pages(gfp, get_order(size));
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+	ret = (void *)__get_free_pages(gfp | __GFP_ZERO, get_order(size));
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 	if (ret)
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 		*dma_handle = (uintptr_t)ret;
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 	return ret;
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@@ -55,5 +55,7 @@
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 	.free			= dma_virt_free,
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 	.map_page		= dma_virt_map_page,
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 	.map_sg			= dma_virt_map_sg,
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+	.alloc_pages		= dma_common_alloc_pages,
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+	.free_pages		= dma_common_free_pages,
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 };
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 EXPORT_SYMBOL(dma_virt_ops);