diff --git a/sys/dev/ida/ida.c b/sys/dev/ida/ida.c
index c9682ef674b5..16c85f177ecc 100644
--- a/sys/dev/ida/ida.c
+++ b/sys/dev/ida/ida.c
@@ -207,25 +207,40 @@ ida_init(struct ida_softc *ida)
 	 */
 
 	/* DMA tag for our hardware QCB structures */
-	error = bus_dma_tag_create(ida->parent_dmat,
-	    /*alignment*/1, /*boundary*/0,
-	    /*lowaddr*/BUS_SPACE_MAXADDR, /*highaddr*/BUS_SPACE_MAXADDR,
-	    /*filter*/NULL, /*filterarg*/NULL,
-	    IDA_QCB_MAX * sizeof(struct ida_hardware_qcb),
-	    /*nsegments*/1, /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
-	    /*flags*/0, /*lockfunc*/busdma_lock_mutex, /*lockarg*/&Giant,
-	    &ida->hwqcb_dmat);
+	error = bus_dma_tag_create(
+		/* parent	*/ ida->parent_dmat,
+		/* alignment	*/ 1,
+		/* boundary	*/ 0,
+		/* lowaddr	*/ BUS_SPACE_MAXADDR,
+		/* highaddr	*/ BUS_SPACE_MAXADDR,
+		/* filter	*/ NULL,
+		/* filterarg	*/ NULL,
+		/* maxsize	*/ IDA_QCB_MAX * sizeof(struct ida_hardware_qcb),
+		/* nsegments	*/ 1,
+		/* maxsegsz	*/ BUS_SPACE_MAXSIZE_32BIT,
+		/* flags	*/ 0,
+		/* lockfunc	*/ busdma_lock_mutex,
+		/* lockarg	*/ &Giant,
+		&ida->hwqcb_dmat);
 	if (error)
                 return (ENOMEM);
 
 	/* DMA tag for mapping buffers into device space */
-	error = bus_dma_tag_create(ida->parent_dmat,
-	    /*alignment*/1, /*boundary*/0,
-	    /*lowaddr*/BUS_SPACE_MAXADDR, /*highaddr*/BUS_SPACE_MAXADDR,
-	    /*filter*/NULL, /*filterarg*/NULL,
-	    /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG,
-	    /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/0,
-	    /*lockfunc*/busdma_lock_mutex, /*lockarg*/&Giant, &ida->buffer_dmat);
+	error = bus_dma_tag_create(
+		/* parent 	*/ ida->parent_dmat,
+		/* alignment	*/ 1,
+		/* boundary	*/ 0,
+		/* lowaddr	*/ BUS_SPACE_MAXADDR,
+		/* highaddr	*/ BUS_SPACE_MAXADDR,
+		/* filter	*/ NULL,
+		/* filterarg	*/ NULL,
+		/* maxsize	*/ MAXBSIZE,
+		/* nsegments	*/ IDA_NSEG,
+		/* maxsegsz	*/ BUS_SPACE_MAXSIZE_32BIT,
+		/* flags	*/ 0,
+		/* lockfunc	*/ busdma_lock_mutex,
+		/* lockarg	*/ &Giant,
+		&ida->buffer_dmat);
 	if (error)
                 return (ENOMEM);
 
diff --git a/sys/dev/ida/ida_pci.c b/sys/dev/ida/ida_pci.c
index 692211d0eb65..82ecf4ad066b 100644
--- a/sys/dev/ida/ida_pci.c
+++ b/sys/dev/ida/ida_pci.c
@@ -264,12 +264,21 @@ ida_pci_attach(device_t dev)
 		return (ENOMEM);
 	}
 
-	error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
-	    /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
-	    /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
-	    /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG,
-	    /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW,
-	    /*lockfunc*/NULL, /*lockarg*/NULL, &ida->parent_dmat);
+	error = bus_dma_tag_create(
+		/* parent	*/ NULL,
+		/* alignment	*/ 1,
+		/* boundary	*/ 0,
+		/* lowaddr	*/ BUS_SPACE_MAXADDR_32BIT,
+		/* highaddr	*/ BUS_SPACE_MAXADDR,
+		/* filter	*/ NULL,
+		/* filterarg	*/ NULL,
+		/* maxsize	*/ MAXBSIZE,
+		/* nsegments	*/ IDA_NSEG,
+		/* maxsegsize	*/ BUS_SPACE_MAXSIZE_32BIT,
+		/* flags	*/ BUS_DMA_ALLOCNOW,
+		/* lockfunc	*/ NULL,
+		/* lockarg	*/ NULL,
+		&ida->parent_dmat);
 	if (error != 0) {
 		device_printf(dev, "can't allocate DMA tag\n");
 		ida_free(ida);