This patch checks current hub support to avoid panicing the
system until all the GRU changes for UV3+ are in place.

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Dimitri Sivanich <sivanich@sgi.com>
---
 drivers/misc/sgi-gru/grufile.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux.orig/drivers/misc/sgi-gru/grufile.c
+++ linux/drivers/misc/sgi-gru/grufile.c
@@ -517,7 +517,7 @@ static int __init gru_init(void)
 {
 	int ret;
 
-	if (!is_uv_system())
+	if (!is_uv_system() || (is_uvx_hub() && !is_uv2_hub()))
 		return 0;
 
 #if defined CONFIG_IA64