X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fusb%2Fmon%2Fmon_dma.c;h=ddcfc01e77a022918940d725986ff0061591f6cb;hb=52d67f0b5c1b1827cd842020d40bdde4f7d04f59;hp=0a1367b760a00947e72d1b539d3dc9f6e32cd3f5;hpb=d67eb16f5d444fb6d173bcec889ddb2066c0fa0c;p=powerpc.git

diff --git a/drivers/usb/mon/mon_dma.c b/drivers/usb/mon/mon_dma.c
index 0a1367b760..ddcfc01e77 100644
--- a/drivers/usb/mon/mon_dma.c
+++ b/drivers/usb/mon/mon_dma.c
@@ -13,7 +13,10 @@
 #include <linux/usb.h>	/* Only needed for declarations in usb_mon.h */
 #include "usb_mon.h"
 
-#ifdef __i386__		/* CONFIG_ARCH_I386 does not exit */
+/*
+ * PC-compatibles, are, fortunately, sufficiently cache-coherent for this.
+ */
+#if defined(__i386__) || defined(__x86_64__) /* CONFIG_ARCH_I386 doesn't exit */
 #define MON_HAS_UNMAP 1
 
 #define phys_to_page(phys)	pfn_to_page((phys) >> PAGE_SHIFT)