diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index e187f3a7e968..e8a880f338c6 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h
@@ -190,7 +190,7 @@ struct ioat_ring_ent {
 };
 
 extern int ioat_pending_level;
-extern struct kobj_type ioat_ktype;
+extern const struct kobj_type ioat_ktype;
 extern struct kmem_cache *ioat_cache;
 extern struct kmem_cache *ioat_sed_cache;
 
@@ -393,7 +393,7 @@ void ioat_issue_pending(struct dma_chan *chan);
 /* IOAT Init functions */
 bool is_bwd_ioat(struct pci_dev *pdev);
 struct dca_provider *ioat_dca_init(struct pci_dev *pdev, void __iomem *iobase);
-void ioat_kobject_add(struct ioatdma_device *ioat_dma, struct kobj_type *type);
+void ioat_kobject_add(struct ioatdma_device *ioat_dma, const struct kobj_type *type);
 void ioat_kobject_del(struct ioatdma_device *ioat_dma);
 int ioat_dma_setup_interrupts(struct ioatdma_device *ioat_dma);
 void ioat_stop(struct ioatdma_chan *ioat_chan);
diff --git a/drivers/dma/ioat/sysfs.c b/drivers/dma/ioat/sysfs.c
index 709d672bae51..da616365fef5 100644
--- a/drivers/dma/ioat/sysfs.c
+++ b/drivers/dma/ioat/sysfs.c
@@ -78,7 +78,7 @@ static const struct sysfs_ops ioat_sysfs_ops = {
 	.store  = ioat_attr_store,
 };
 
-void ioat_kobject_add(struct ioatdma_device *ioat_dma, struct kobj_type *type)
+void ioat_kobject_add(struct ioatdma_device *ioat_dma, const struct kobj_type *type)
 {
 	struct dma_device *dma = &ioat_dma->dma_dev;
 	struct dma_chan *c;
@@ -166,7 +166,7 @@ static struct attribute *ioat_attrs[] = {
 };
 ATTRIBUTE_GROUPS(ioat);
 
-struct kobj_type ioat_ktype = {
+const struct kobj_type ioat_ktype = {
 	.sysfs_ops = &ioat_sysfs_ops,
 	.default_groups = ioat_groups,
 };