dma-mapping: remove the {alloc,free}_noncoherent methods

[mirror_ubuntu-jammy-kernel.git] / kernel / dma / mapping.c

diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c
index f87a89d086544b863b9635c07334dfc8530dd3d4..68992e35c8c3a7010c283e0aaf02dcc84b2c445d 100644 (file)
--- a/kernel/dma/mapping.c
+++ b/kernel/dma/mapping.c
@@ -515,46 +515,6 @@ void dma_free_pages(struct device *dev, size_t size, struct page *page,
 }
 EXPORT_SYMBOL_GPL(dma_free_pages);
 
-void *dma_alloc_noncoherent(struct device *dev, size_t size,
-               dma_addr_t *dma_handle, enum dma_data_direction dir, gfp_t gfp)
-{
-       const struct dma_map_ops *ops = get_dma_ops(dev);
-       void *vaddr;
-
-       if (!ops || !ops->alloc_noncoherent) {
-               struct page *page;
-
-               page = dma_alloc_pages(dev, size, dma_handle, dir, gfp);
-               if (!page)
-                       return NULL;
-               return page_address(page);
-       }
-
-       size = PAGE_ALIGN(size);
-       vaddr = ops->alloc_noncoherent(dev, size, dma_handle, dir, gfp);
-       if (vaddr)
-               debug_dma_map_page(dev, virt_to_page(vaddr), 0, size, dir,
-                                  *dma_handle);
-       return vaddr;
-}
-EXPORT_SYMBOL_GPL(dma_alloc_noncoherent);
-
-void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr,
-               dma_addr_t dma_handle, enum dma_data_direction dir)
-{
-       const struct dma_map_ops *ops = get_dma_ops(dev);
-
-       if (!ops || !ops->free_noncoherent) {
-               dma_free_pages(dev, size, virt_to_page(vaddr), dma_handle, dir);
-               return;
-       }
-
-       size = PAGE_ALIGN(size);
-       debug_dma_unmap_page(dev, dma_handle, size, dir);
-       ops->free_noncoherent(dev, size, vaddr, dma_handle, dir);
-}
-EXPORT_SYMBOL_GPL(dma_free_noncoherent);
-
 int dma_supported(struct device *dev, u64 mask)
 {
        const struct dma_map_ops *ops = get_dma_ops(dev);