GRU: fix preprocessor symbol for sparse

Fix preprocessor symbol so that sparse sees it and does not generate
errors:

  drivers/misc/sgi-gru/grutables.h:286:2: error: "Unsupported architecture"
  drivers/misc/sgi-gru/grutables.h:286:2: error: "Unsupported architecture"
  drivers/misc/sgi-gru/grutables.h:286:2: error: "Unsupported architecture"
  drivers/misc/sgi-gru/grutables.h:286:2: error: "Unsupported architecture"
  drivers/misc/sgi-gru/grutlbpurge.c:185:11: error: undefined identifier 'GRUREGION'
  drivers/misc/sgi-gru/grutables.h:286:2: error: "Unsupported architecture"
  drivers/misc/sgi-gru/grutables.h:286:2: error: "Unsupported architecture"

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
index 4251018f70f..a78f70deeb5 100644
--- a/drivers/misc/sgi-gru/grutables.h
+++ b/drivers/misc/sgi-gru/grutables.h
@@ -279,7 +279,7 @@ struct gru_stats_s {
 #if defined CONFIG_IA64
 #define VADDR_HI_BIT            64
 #define GRUREGION(addr)         ((addr) >> (VADDR_HI_BIT - 3) & 3)
-#elif defined __x86_64
+#elif defined CONFIG_X86_64
 #define VADDR_HI_BIT            48
 #define GRUREGION(addr)         (0)             /* ZZZ could do better */
 #else