1 files changed, 1 insertions, 2 deletions

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 734d302ba389..c36cd35e03f3 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -213,8 +213,7 @@ struct kvm_s390_float_interrupt {
         struct list_head list;
         atomic_t active;
         int next_rr_cpu;
-        unsigned long idle_mask[(KVM_MAX_VCPUS + sizeof(long) - 1)
-                                / sizeof(long)];
+        unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
         unsigned int irq_count;
 };