diff --git a/include/linux/fsl/mc.h b/include/linux/fsl/mc.h
index c25f0f7e6dd4..0b2c0eb9b605 100644
--- a/include/linux/fsl/mc.h
+++ b/include/linux/fsl/mc.h
@@ -336,7 +336,7 @@ struct fsl_mc_io {
 	u16 flags;
 	u32 portal_size;
 	phys_addr_t portal_phys_addr;
-	void __iomem *portal_virt_addr;
+	void __iomem *portal_virt_addr __counted_by_ptr(portal_size);
 	struct fsl_mc_device *dpmcp_dev;
 	union {
 		/*