Once we have made the distinction between nid and chipid
create a 1:1 mapping between them. This makes compacting the
nids easy later.

No functionality change.

Signed-off-by: Raghavendra K T <redacted>
---
 arch/powerpc/mm/numa.c | 36 +++++++++++++++++++++++++++++-------
 1 file changed, 29 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index f84ed2f..dd2073b 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c

@@ -264,6 +264,17 @@ out:
 	return chipid;
 }

+
+ /* Return the nid from associativity */
+static int associativity_to_nid(const __be32 *associativity)
+{
+	int nid;
+
+	nid = associativity_to_chipid(associativity);
+	return nid;
+}