Replace alloc_pages with alloc_pages_op in zhaoxin_kh40000.c

Since alloc_pages name in dma_map_ops was modified in 603c70b ("
change alloc_pages name in dma_map_ops to avoid name conflicts"), the same
modification needs to be made in zhaoxin_kh40000.c as well.

Signed-off-by: leoliu-oc <leoliu-oc@zhaoxin.com>

arch/x86/kernel/zhaoxin_kh40000.c

@@ -162,7 +162,7 @@ const struct dma_map_ops kh40000_dma_direct_ops = {
 	.unmap_resource		= kh40000_dma_direct_unmap_resource,
 	.dma_supported		= dma_direct_supported,
 	.free			= dma_direct_free,
-	.alloc_pages		= dma_direct_alloc_pages,
+	.alloc_pages_op		= dma_direct_alloc_pages,
 	.free_pages		= dma_direct_free_pages,
 	.sync_single_for_device	= dma_direct_sync_single_for_device,
 	.sync_sg_for_device	= dma_direct_sync_sg_for_device,
@@ -200,7 +200,7 @@ static void kh40000_iommu_dma_free(struct device *dev, size_t size, void *cpu_ad
 static struct page *kh40000_dma_common_alloc_pages(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, enum dma_data_direction dir, gfp_t gfp)
 {
-	return iommu_dma_ops->alloc_pages(dev, size, dma_handle, dir, gfp);
+	return iommu_dma_ops->alloc_pages_op(dev, size, dma_handle, dir, gfp);
 }
 
 static void kh40000_dma_common_free_pages(struct device *dev, size_t size, struct page *page,
@@ -327,7 +327,7 @@ const struct dma_map_ops kh40000_dma_iommu_ops = {
 	.alloc			= kh40000_iommu_dma_alloc,
 	.free			= kh40000_iommu_dma_free,
 	.unmap_page		= kh40000_iommu_dma_unmap_page,
-	.alloc_pages		= kh40000_dma_common_alloc_pages,
+	.alloc_pages_op		= kh40000_dma_common_alloc_pages,
 	.free_pages		= kh40000_dma_common_free_pages,
 	.alloc_noncontiguous	= kh40000_iommu_dma_alloc_noncontiguous,
 	.free_noncontiguous	= kh40000_iommu_dma_free_noncontiguous,