[PATCH] [3/3] Remove dmam_{declare,release}_coherent_memory

[Andi Kleen]

No callers in tree, so get rid of them.

Signed-off-by: Andi Kleen <ak@xxxxxxx>

Index: linux/include/linux/dma-mapping.h
===================================================================
--- linux.orig/include/linux/dma-mapping.h
+++ linux/include/linux/dma-mapping.h
@@ -128,22 +128,5 @@ extern void *dmam_alloc_noncoherent(stru
 				    dma_addr_t *dma_handle, gfp_t gfp);
 extern void dmam_free_noncoherent(struct device *dev, size_t size, void *vaddr,
 				  dma_addr_t dma_handle);
-#ifdef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
-extern int dmam_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
-					dma_addr_t device_addr, size_t size,
-					int flags);
-extern void dmam_release_declared_memory(struct device *dev);
-#else /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
-static inline int dmam_declare_coherent_memory(struct device *dev,
-				dma_addr_t bus_addr, dma_addr_t device_addr,
-				size_t size, gfp_t gfp)
-{
-	return 0;
-}
-
-static inline void dmam_release_declared_memory(struct device *dev)
-{
-}
-#endif /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
 
 #endif
Index: linux/drivers/base/dma-mapping.c
===================================================================
--- linux.orig/drivers/base/dma-mapping.c
+++ linux/drivers/base/dma-mapping.c
@@ -161,58 +161,3 @@ void dmam_free_noncoherent(struct device
 				&match_data));
 }
 EXPORT_SYMBOL(dmam_free_noncoherent);
-
-#ifdef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
-
-static void dmam_coherent_decl_release(struct device *dev, void *res)
-{
-	dma_release_declared_memory(dev);
-}
-
-/**
- * dmam_declare_coherent_memory - Managed dma_declare_coherent_memory()
- * @dev: Device to declare coherent memory for
- * @bus_addr: Bus address of coherent memory to be declared
- * @device_addr: Device address of coherent memory to be declared
- * @size: Size of coherent memory to be declared
- * @flags: Flags
- *
- * Managed dma_declare_coherent_memory().
- *
- * RETURNS:
- * 0 on success, -errno on failure.
- */
-int dmam_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
-				 dma_addr_t device_addr, size_t size, int flags)
-{
-	void *res;
-	int rc;
-
-	res = devres_alloc(dmam_coherent_decl_release, 0, GFP_KERNEL);
-	if (!res)
-		return -ENOMEM;
-
-	rc = dma_declare_coherent_memory(dev, bus_addr, device_addr, size,
-					 flags);
-	if (rc == 0)
-		devres_add(dev, res);
-	else
-		devres_free(res);
-
-	return rc;
-}
-EXPORT_SYMBOL(dmam_declare_coherent_memory);
-
-/**
- * dmam_release_declared_memory - Managed dma_release_declared_memory().
- * @dev: Device to release declared coherent memory for
- *
- * Managed dmam_release_declared_memory().
- */
-void dmam_release_declared_memory(struct device *dev)
-{
-	WARN_ON(devres_destroy(dev, dmam_coherent_decl_release, NULL, NULL));
-}
-EXPORT_SYMBOL(dmam_release_declared_memory);
-
-#endif
--
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