sgi-xp: support runtime selection of xp_max_npartitions

Support runtime selection of the max number of partitions based on the
hardware being run on.

Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/misc/sgi-xp/xpnet.c b/drivers/misc/sgi-xp/xpnet.c
index 822dc8e..cc252f2 100644
--- a/drivers/misc/sgi-xp/xpnet.c
+++ b/drivers/misc/sgi-xp/xpnet.c
@@ -287,7 +287,7 @@
 {
 	long bp;
 
-	DBUG_ON(partid <= 0 || partid >= XP_MAX_PARTITIONS);
+	DBUG_ON(partid < 0 || partid >= xp_max_npartitions);
 	DBUG_ON(channel != XPC_NET_CHANNEL);
 
 	switch (reason) {
@@ -513,7 +513,7 @@
 	/*
 	 * Main send loop.
 	 */
-	for (dest_partid = 1; dp && dest_partid < XP_MAX_PARTITIONS;
+	for (dest_partid = 0; dp && dest_partid < xp_max_npartitions;
 	     dest_partid++) {
 
 		if (!(dp & (1UL << (dest_partid - 1)))) {