diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
index db814f7b93ba..31508d32098c 100644
--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
@@ -1635,7 +1635,7 @@ static u32 hv_compose_msi_req_v1(
  * Create MSI w/ dummy vCPU set targeting just one vCPU, overwritten
  * by subsequent retarget in hv_irq_unmask().
  */
-static int hv_compose_msi_req_get_cpu(struct cpumask *affinity)
+static int hv_compose_msi_req_get_cpu(const struct cpumask *affinity)
 {
 	return cpumask_first_and(affinity, cpu_online_mask);
 }