[PATCH] setup_pci.c build fix

On sparc64:

drivers/ide/setup-pci.c:310: error: `DMA_32BIT_MASK' undeclared (first use in this function)
drivers/ide/setup-pci.c:310: error: (Each undeclared identifier is reported only once
drivers/ide/setup-pci.c:310: error: for each function it appears in.)
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/ide/setup-pci.c

@@ -28,6 +28,7 @@
 #include <linux/mm.h>
 #include <linux/interrupt.h>
 #include <linux/ide.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>