Fix two syntax errors in frame-and-sect decoding macros.

Both are in the non-grant-tables cases of 
cset ae51fa1d32b23066c4342bbeb5f4dc401b82ea37.

Signed-off-by: andrew.warfield@cl.cam.ac.uk

linux-2.6-xen-sparse/drivers/xen/blkfront/vbd.c

@@ -137,7 +137,7 @@ static vdisk_t *xlvbd_probe(int *ret)
     blkif_control_probe_send(&req, &rsp,
                              (unsigned long)(virt_to_machine(buf)));
 #else
-    req.frame_and_sects[0] = blkif_fas(virt_to_machine(buf), 0, ((PAGE_SIZE/512)-1);
+    req.frame_and_sects[0] = blkif_fas(virt_to_machine(buf), 0, (PAGE_SIZE/512)-1);
 
     blkif_control_send(&req, &rsp);
 #endif

xen/include/public/io/blkif.h

@@ -47,7 +47,7 @@ typedef struct blkif_request {
     unsigned long  frame_and_sects[BLKIF_MAX_SEGMENTS_PER_REQUEST];
 } blkif_request_t;
 
-#define blkif_fas(_addr, _fs, _ls) ((addr)|((_fs)<<5)|(_ls))
+#define blkif_fas(_addr, _fs, _ls) ((_addr)|((_fs)<<5)|(_ls))
 #define blkif_first_sect(_fas) (((_fas)>>5)&31)
 #define blkif_last_sect(_fas)  ((_fas)&31)