[PATCH] LoongArch: Don't init & online empty nodes

[Huacai Chen]

Don't init & online empty nodes without any CPU cores (and memory), in
this way "lscpu" will not display confusing empty nodes.

Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
---
 arch/loongarch/kernel/numa.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/loongarch/kernel/numa.c b/arch/loongarch/kernel/numa.c
index c96c53623715..a38fccc76087 100644
--- a/arch/loongarch/kernel/numa.c
+++ b/arch/loongarch/kernel/numa.c
@@ -244,8 +244,10 @@ int __init init_numa_memory(void)
 		return -EINVAL;
 
 	for_each_node_mask(node, node_possible_map) {
-		node_mem_init(node);
-		node_set_online(node);
+		if (!cpumask_empty(&cpus_on_node[node])) {
+			node_mem_init(node);
+			node_set_online(node);
+		}
 	}
 	max_pfn = PFN_DOWN(memblock_end_of_DRAM());
 	max_low_pfn = min(PFN_DOWN(HIGHMEM_START), max_pfn);
-- 
2.52.0