diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
index 220838525d..9f196625a2 100644
--- a/hw/arm/smmu-common.c
+++ b/hw/arm/smmu-common.c
@@ -483,7 +483,7 @@ static void smmu_unmap_notifier_range(IOMMUNotifier *n)
 }
 
 /* Unmap all notifiers attached to @mr */
-inline void smmu_inv_notifiers_mr(IOMMUMemoryRegion *mr)
+static void smmu_inv_notifiers_mr(IOMMUMemoryRegion *mr)
 {
     IOMMUNotifier *n;
 
diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h
index 21e62342e9..c5683af07d 100644
--- a/include/hw/arm/smmu-common.h
+++ b/include/hw/arm/smmu-common.h
@@ -173,7 +173,4 @@ void smmu_iotlb_inv_iova(SMMUState *s, int asid, dma_addr_t iova,
 /* Unmap the range of all the notifiers registered to any IOMMU mr */
 void smmu_inv_notifiers_all(SMMUState *s);
 
-/* Unmap the range of all the notifiers registered to @mr */
-void smmu_inv_notifiers_mr(IOMMUMemoryRegion *mr);
-
 #endif /* HW_ARM_SMMU_COMMON_H */