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-rw-r--r--arch/s390/kernel/topology.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index a9dee9048ee5..94b06c31fc8a 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -53,8 +53,10 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu)
cpumask_t mask;
cpus_clear(mask);
- if (!topology_enabled || !MACHINE_HAS_TOPOLOGY)
- return cpu_possible_map;
+ if (!topology_enabled || !MACHINE_HAS_TOPOLOGY) {
+ cpumask_copy(&mask, cpumask_of(cpu));
+ return mask;
+ }
while (info) {
if (cpu_isset(cpu, info->mask)) {
mask = info->mask;