tools/testing/scatterlist: Fix test to compile and run

[sfrench/cifs-2.6.git] / tools / testing / scatterlist / linux / mm.h

diff --git a/tools/testing/scatterlist/linux/mm.h b/tools/testing/scatterlist/linux/mm.h
index 6ae907f375d20a30b56590ce0d1e149707463a72..f9a12005fcea85214b4d940cd23c661b576adc7a 100644 (file)
--- a/tools/testing/scatterlist/linux/mm.h
+++ b/tools/testing/scatterlist/linux/mm.h
@@ -33,6 +33,7 @@ typedef unsigned long dma_addr_t;
 #define __ALIGN_KERNEL(x, a)           __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
 #define __ALIGN_KERNEL_MASK(x, mask)   (((x) + (mask)) & ~(mask))
 #define ALIGN(x, a)                    __ALIGN_KERNEL((x), (a))
+#define ALIGN_DOWN(x, a)               __ALIGN_KERNEL((x) - ((a) - 1), (a))
 
 #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)