[PATCH 2/4] LoongArch: Make cpumask_of_node() robust against NUMA_NO_NODE
From: John Garry
Date: Mon Jan 05 2026 - 05:10:57 EST
The arch definition of cpumask_of_node() cannot handle NUMA_NO_NODE - which
is a valid index - so add a check for this.
Signed-off-by: John Garry <john.g.garry@xxxxxxxxxx>
---
arch/loongarch/include/asm/topology.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/loongarch/include/asm/topology.h b/arch/loongarch/include/asm/topology.h
index f06e7ff25bb7c..9857e4c20023c 100644
--- a/arch/loongarch/include/asm/topology.h
+++ b/arch/loongarch/include/asm/topology.h
@@ -12,7 +12,9 @@
extern cpumask_t cpus_on_node[];
-#define cpumask_of_node(node) (&cpus_on_node[node])
+#define cpumask_of_node(node) ((node) == NUMA_NO_NODE ? \
+ cpu_all_mask : \
+ &cpus_on_node[node])
struct pci_bus;
extern int pcibus_to_node(struct pci_bus *);
--
2.43.5