Thread (9 messages) 9 messages, 2 authors, 2021-10-04

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

From: Gavin Shan <hidden>
Date: 2021-09-27 06:42:40
Also in: linux-arm-kernel, linux-devicetree, linux-efi, lkml
Subsystem: open firmware and flattened device tree, the rest · Maintainers: Rob Herring, Saravana Kannan, Linus Torvalds

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 <redacted>
---
 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

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