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authorAl Viro <viro@ftp.linux.org.uk>2007-01-30 08:24:00 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-01-30 11:39:21 -0500
commit6a13f66043cd755fc7e19f8e0fbb5bfcdf470e74 (patch)
tree301db0c7aa84e1649935fe3c842c75c9a40a67cf /include
parentd0a23398eeaa374eb0c0435c5a259ffde77c8af0 (diff)
[PATCH] dma-mapping.h stubs fix
do { } while(0) is not a good imitation of function returning void; use ((void)0) instead. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-alpha/dma-mapping.h6
-rw-r--r--include/asm-powerpc/dma-mapping.h12
2 files changed, 9 insertions, 9 deletions
diff --git a/include/asm-alpha/dma-mapping.h b/include/asm-alpha/dma-mapping.h
index 1919d72f4c7a..75a1aff5b57b 100644
--- a/include/asm-alpha/dma-mapping.h
+++ b/include/asm-alpha/dma-mapping.h
@@ -41,9 +41,9 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
41#define dma_map_single(dev, va, size, dir) virt_to_phys(va) 41#define dma_map_single(dev, va, size, dir) virt_to_phys(va)
42#define dma_map_page(dev, page, off, size, dir) (page_to_pa(page) + off) 42#define dma_map_page(dev, page, off, size, dir) (page_to_pa(page) + off)
43 43
44#define dma_unmap_single(dev, addr, size, dir) do { } while (0) 44#define dma_unmap_single(dev, addr, size, dir) ((void)0)
45#define dma_unmap_page(dev, addr, size, dir) do { } while (0) 45#define dma_unmap_page(dev, addr, size, dir) ((void)0)
46#define dma_unmap_sg(dev, sg, nents, dir) do { } while (0) 46#define dma_unmap_sg(dev, sg, nents, dir) ((void)0)
47 47
48#define dma_mapping_error(addr) (0) 48#define dma_mapping_error(addr) (0)
49 49
diff --git a/include/asm-powerpc/dma-mapping.h b/include/asm-powerpc/dma-mapping.h
index 7c7de87bd8ae..a19a6f1a1cf1 100644
--- a/include/asm-powerpc/dma-mapping.h
+++ b/include/asm-powerpc/dma-mapping.h
@@ -37,9 +37,9 @@ extern void __dma_sync_page(struct page *page, unsigned long offset,
37 */ 37 */
38 38
39#define __dma_alloc_coherent(gfp, size, handle) NULL 39#define __dma_alloc_coherent(gfp, size, handle) NULL
40#define __dma_free_coherent(size, addr) do { } while (0) 40#define __dma_free_coherent(size, addr) ((void)0)
41#define __dma_sync(addr, size, rw) do { } while (0) 41#define __dma_sync(addr, size, rw) ((void)0)
42#define __dma_sync_page(pg, off, sz, rw) do { } while (0) 42#define __dma_sync_page(pg, off, sz, rw) ((void)0)
43 43
44#endif /* ! CONFIG_NOT_COHERENT_CACHE */ 44#endif /* ! CONFIG_NOT_COHERENT_CACHE */
45 45
@@ -251,7 +251,7 @@ dma_map_single(struct device *dev, void *ptr, size_t size,
251} 251}
252 252
253/* We do nothing. */ 253/* We do nothing. */
254#define dma_unmap_single(dev, addr, size, dir) do { } while (0) 254#define dma_unmap_single(dev, addr, size, dir) ((void)0)
255 255
256static inline dma_addr_t 256static inline dma_addr_t
257dma_map_page(struct device *dev, struct page *page, 257dma_map_page(struct device *dev, struct page *page,
@@ -266,7 +266,7 @@ dma_map_page(struct device *dev, struct page *page,
266} 266}
267 267
268/* We do nothing. */ 268/* We do nothing. */
269#define dma_unmap_page(dev, handle, size, dir) do { } while (0) 269#define dma_unmap_page(dev, handle, size, dir) ((void)0)
270 270
271static inline int 271static inline int
272dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, 272dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
@@ -286,7 +286,7 @@ dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
286} 286}
287 287
288/* We don't do anything here. */ 288/* We don't do anything here. */
289#define dma_unmap_sg(dev, sg, nents, dir) do { } while (0) 289#define dma_unmap_sg(dev, sg, nents, dir) ((void)0)
290 290
291#endif /* CONFIG_PPC64 */ 291#endif /* CONFIG_PPC64 */
292 292