1 files changed, 23 insertions, 7 deletions

diff --git a/include/linux/dmapool.h b/include/linux/dmapool.h
index 53ba737505df..f632ecfb4238 100644
--- a/include/linux/dmapool.h
+++ b/include/linux/dmapool.h
@@ -16,6 +16,8 @@
 
 struct device;
 
+#ifdef CONFIG_HAS_DMA
+
 struct dma_pool *dma_pool_create(const char *name, struct device *dev, 
                         size_t size, size_t align, size_t allocation);
 
@@ -23,13 +25,6 @@ void dma_pool_destroy(struct dma_pool *pool);
 
 void *dma_pool_alloc(struct dma_pool *pool, gfp_t mem_flags,
                      dma_addr_t *handle);
-
-static inline void *dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags,
-                                    dma_addr_t *handle)
-{
-        return dma_pool_alloc(pool, mem_flags | __GFP_ZERO, handle);
-}
-
 void dma_pool_free(struct dma_pool *pool, void *vaddr, dma_addr_t addr);
 
 /*
@@ -39,5 +34,26 @@ struct dma_pool *dmam_pool_create(const char *name, struct device *dev,
                                   size_t size, size_t align, size_t allocation);
 void dmam_pool_destroy(struct dma_pool *pool);
 
+#else /* !CONFIG_HAS_DMA */
+static inline struct dma_pool *dma_pool_create(const char *name,
+        struct device *dev, size_t size, size_t align, size_t allocation)
+{ return NULL; }
+static inline void dma_pool_destroy(struct dma_pool *pool) { }
+static inline void *dma_pool_alloc(struct dma_pool *pool, gfp_t mem_flags,
+                                   dma_addr_t *handle) { return NULL; }
+static inline void dma_pool_free(struct dma_pool *pool, void *vaddr,
+                                 dma_addr_t addr) { }
+static inline struct dma_pool *dmam_pool_create(const char *name,
+        struct device *dev, size_t size, size_t align, size_t allocation)
+{ return NULL; }
+static inline void dmam_pool_destroy(struct dma_pool *pool) { }
+#endif /* !CONFIG_HAS_DMA */
+
+static inline void *dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags,
+                                    dma_addr_t *handle)
+{
+        return dma_pool_alloc(pool, mem_flags | __GFP_ZERO, handle);
+}
+
 #endif