[PATCH v2 2/2] of, numa: Fetch empty NUMA node ID from distance map

From: Gavin Shan
Date: Mon Sep 27 2021 - 02:42:40 EST


There is no device node for the empty NUMA node. However, the
corresponding NUMA node ID and distance map is still valid in
"numa-distance-map-v1" compatible device node.

This fetches the NUMA node ID and distance map for these empty
NUMA node from "numa-distance-map-v1" compatible device node.

Signed-off-by: Gavin Shan <gshan@xxxxxxxxxx>
---
drivers/of/of_numa.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
index fe6b13608e51..5949829a1b00 100644
--- a/drivers/of/of_numa.c
+++ b/drivers/of/of_numa.c
@@ -111,6 +111,8 @@ static int __init of_numa_parse_distance_map_v1(struct device_node *map)
return -EINVAL;
}

+ node_set(nodea, numa_nodes_parsed);
+
numa_set_distance(nodea, nodeb, distance);

/* Set default distance of node B->A same as A->B */
--
2.23.0