Module Name:    src
Committed By:   martin
Date:           Wed Oct  2 12:19:37 UTC 2024

Modified Files:
        src/sys/dev/usb [netbsd-10]: ohci.c

Log Message:
Fix previous, pullup of revision 1.328 totally gone wrong, try again:

Pull up following revision(s) (requested by skrll in ticket #926):

        sys/dev/usb/ohci.c: revision 1.328

Fix some usb_syncmem calls and add some missing ones.


To generate a diff of this commit:
cvs rdiff -u -r1.323.4.1 -r1.323.4.2 src/sys/dev/usb/ohci.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/usb/ohci.c
diff -u src/sys/dev/usb/ohci.c:1.323.4.1 src/sys/dev/usb/ohci.c:1.323.4.2
--- src/sys/dev/usb/ohci.c:1.323.4.1	Wed Oct  2 11:02:43 2024
+++ src/sys/dev/usb/ohci.c	Wed Oct  2 12:19:37 2024
@@ -1,4 +1,4 @@
-/*	$NetBSD: ohci.c,v 1.323.4.1 2024/10/02 11:02:43 martin Exp $	*/
+/*	$NetBSD: ohci.c,v 1.323.4.2 2024/10/02 12:19:37 martin Exp $	*/
 
 /*
  * Copyright (c) 1998, 2004, 2005, 2012, 2016, 2020 The NetBSD Foundation, Inc.
@@ -42,7 +42,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.323.4.1 2024/10/02 11:02:43 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.323.4.2 2024/10/02 12:19:37 martin Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_usb.h"
@@ -409,29 +409,19 @@ ohci_alloc_sed(ohci_softc_t *sc)
 		DPRINTFN(2, "allocating chunk", 0, 0, 0, 0);
 		mutex_exit(&sc->sc_lock);
 
-		int err = usb_allocmem(sc->sc_bus.ub_dmatag,
-		    OHCI_ED_SIZE * OHCI_ED_CHUNK,
-		    OHCI_ED_ALIGN, 0, &dma);
+		int err = usb_allocmem(sc->sc_bus.ub_dmatag, OHCI_SED_SIZE * OHCI_SED_CHUNK,
+		    OHCI_ED_ALIGN, 0 /*!USBMALLOC_COHERENT*/, &dma);
 		if (err)
 			return NULL;
 
-		ohci_soft_ed_t *seds =
-		    kmem_alloc(sizeof(*sed) * OHCI_ED_CHUNK, KM_SLEEP);
-		/*
-		 * We can avoid USBMALLOC_COHERENT as the EDs are each on a
-		 * cacheline.
-		 */
 		mutex_enter(&sc->sc_lock);
-		for (i = 0; i < OHCI_ED_CHUNK; i++) {
-			offs = i * OHCI_ED_SIZE;
-
-			sed = &seds[i];
-			sed->ed = KERNADDR(&dma, offs);
+		for (i = 0; i < OHCI_SED_CHUNK; i++) {
+			offs = i * OHCI_SED_SIZE;
+			sed = KERNADDR(&dma, offs);
 			sed->physaddr = DMAADDR(&dma, offs);
 			sed->dma = dma;
 			sed->offs = offs;
 			sed->next = sc->sc_freeeds;
-
 			sc->sc_freeeds = sed;
 		}
 	}
@@ -439,7 +429,7 @@ ohci_alloc_sed(ohci_softc_t *sc)
 	sc->sc_freeeds = sed->next;
 	mutex_exit(&sc->sc_lock);
 
-	memset(sed->ed, 0, sizeof(*sed->ed));
+	memset(&sed->ed, 0, sizeof(ohci_ed_t));
 	sed->next = 0;
 	return sed;
 }
@@ -477,29 +467,19 @@ ohci_alloc_std(ohci_softc_t *sc)
 		DPRINTFN(2, "allocating chunk", 0, 0, 0, 0);
 		mutex_exit(&sc->sc_lock);
 
-		ohci_soft_td_t *stds =
-		    kmem_alloc(sizeof(*std) * OHCI_TD_CHUNK, KM_SLEEP);
-		/*
-		 * We can avoid USBMALLOC_COHERENT as the TDs are each on a
-		 * cacheline.
-		 */
-		int err = usb_allocmem(sc->sc_bus.ub_dmatag,
-		    OHCI_TD_SIZE * OHCI_TD_CHUNK,
-		    OHCI_TD_ALIGN, 0, &dma);
+		int err = usb_allocmem(sc->sc_bus.ub_dmatag, OHCI_STD_SIZE * OHCI_STD_CHUNK,
+		   OHCI_TD_ALIGN, USBMALLOC_COHERENT, &dma);
 		if (err)
 			return NULL;
 
 		mutex_enter(&sc->sc_lock);
-		for (i = 0; i < OHCI_TD_CHUNK; i++) {
-			offs = i * OHCI_TD_SIZE;
-
-			std = &stds[i];
-			std->td = KERNADDR(&dma, offs);
+		for (i = 0; i < OHCI_STD_CHUNK; i++) {
+			offs = i * OHCI_STD_SIZE;
+			std = KERNADDR(&dma, offs);
 			std->physaddr = DMAADDR(&dma, offs);
 			std->dma = dma;
 			std->offs = offs;
 			std->nexttd = sc->sc_freetds;
-
 			sc->sc_freetds = std;
 		}
 	}
@@ -508,7 +488,7 @@ ohci_alloc_std(ohci_softc_t *sc)
 	sc->sc_freetds = std->nexttd;
 	mutex_exit(&sc->sc_lock);
 
-	memset(std->td, 0, sizeof(*std->td));
+	memset(&std->td, 0, sizeof(ohci_td_t));
 	std->nexttd = NULL;
 	std->xfer = NULL;
 	std->held = NULL;
@@ -671,10 +651,10 @@ ohci_reset_std_chain(ohci_softc_t *sc, s
 		DPRINTFN(4, "sdataphys=0x%08jx edataphys=0x%08jx "
 		    "len=%jd curlen=%jd", sdataphys, edataphys, len, curlen);
 
-		cur->td->td_flags = tdflags;
-		cur->td->td_cbp = HTOO32(sdataphys);
-		cur->td->td_be = HTOO32(edataphys);
-		cur->td->td_nexttd = (next != NULL) ? HTOO32(next->physaddr) : 0;
+		cur->td.td_flags = tdflags;
+		cur->td.td_cbp = HTOO32(sdataphys);
+		cur->td.td_be = HTOO32(edataphys);
+		cur->td.td_nexttd = (next != NULL) ? HTOO32(next->physaddr) : 0;
 		cur->nexttd = next;
 		cur->len = curlen;
 		cur->flags = OHCI_ADD_LEN;
@@ -687,20 +667,20 @@ ohci_reset_std_chain(ohci_softc_t *sc, s
 		if (len != 0) {
 			KASSERT(next != NULL);
 			DPRINTFN(10, "extend chain", 0, 0, 0, 0);
-			usb_syncmem(&cur->dma, cur->offs, sizeof(*cur->td),
+			usb_syncmem(&cur->dma, cur->offs, sizeof(cur->td),
 			    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 			cur = next;
 		}
 	}
-	cur->td->td_flags |=
+	cur->td.td_flags |=
 	    HTOO32(xfer->ux_flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0);
 
 	if (!rd &&
 	    (flags & USBD_FORCE_SHORT_XFER) &&
 	    alen % mps == 0) {
 		/* We're adding a ZLP so sync the previous TD */
-		usb_syncmem(&cur->dma, cur->offs, sizeof(*cur->td),
+		usb_syncmem(&cur->dma, cur->offs, sizeof(cur->td),
 		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 		/* Force a 0 length transfer at the end. */
@@ -708,10 +688,10 @@ ohci_reset_std_chain(ohci_softc_t *sc, s
 		KASSERT(next != NULL);
 		cur = next;
 
-		cur->td->td_flags = tdflags;
-		cur->td->td_cbp = 0; /* indicate 0 length packet */
-		cur->td->td_nexttd = 0;
-		cur->td->td_be = ~0;
+		cur->td.td_flags = tdflags;
+		cur->td.td_cbp = 0; /* indicate 0 length packet */
+		cur->td.td_nexttd = 0;
+		cur->td.td_be = ~0;
 		cur->nexttd = NULL;
 		cur->len = 0;
 		cur->flags = 0;
@@ -739,26 +719,18 @@ ohci_alloc_sitd(ohci_softc_t *sc)
 		DPRINTFN(2, "allocating chunk", 0, 0, 0, 0);
 		mutex_exit(&sc->sc_lock);
 
-		int err = usb_allocmem(sc->sc_bus.ub_dmatag,
-		    OHCI_ITD_SIZE * OHCI_ITD_CHUNK,
-		    OHCI_ITD_ALIGN, 0, &dma);
+		int err = usb_allocmem(sc->sc_bus.ub_dmatag, OHCI_SITD_SIZE * OHCI_SITD_CHUNK,
+		    OHCI_ITD_ALIGN, USBMALLOC_COHERENT, &dma);
 		if (err)
 			return NULL;
-
-		ohci_soft_itd_t *sitds =
-		    kmem_alloc(sizeof(*sitd) * OHCI_ITD_CHUNK, KM_SLEEP);
-
 		mutex_enter(&sc->sc_lock);
-		for (i = 0; i < OHCI_ITD_CHUNK; i++) {
-			offs = i * OHCI_ITD_SIZE;
-
-			sitd = &sitds[i];
-			sitd->itd = KERNADDR(&dma, offs);
+		for (i = 0; i < OHCI_SITD_CHUNK; i++) {
+			offs = i * OHCI_SITD_SIZE;
+			sitd = KERNADDR(&dma, offs);
 			sitd->physaddr = DMAADDR(&dma, offs);
 			sitd->dma = dma;
 			sitd->offs = offs;
 			sitd->nextitd = sc->sc_freeitds;
-
 			sc->sc_freeitds = sitd;
 		}
 	}
@@ -767,7 +739,7 @@ ohci_alloc_sitd(ohci_softc_t *sc)
 	sc->sc_freeitds = sitd->nextitd;
 	mutex_exit(&sc->sc_lock);
 
-	memset(sitd->itd, 0, sizeof(*sitd->itd));
+	memset(&sitd->itd, 0, sizeof(ohci_itd_t));
 	sitd->nextitd = NULL;
 	sitd->xfer = NULL;
 
@@ -882,9 +854,9 @@ ohci_init(ohci_softc_t *sc)
 		err = ENOMEM;
 		goto bad2;
 	}
-	sc->sc_bulk_head->ed->ed_flags |= HTOO32(OHCI_ED_SKIP);
+	sc->sc_bulk_head->ed.ed_flags |= HTOO32(OHCI_ED_SKIP);
 	usb_syncmem(&sc->sc_bulk_head->dma, sc->sc_bulk_head->offs,
-	    sizeof(*sc->sc_bulk_head->ed),
+	    sizeof(sc->sc_bulk_head->ed),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 	/* Allocate dummy ED that starts the isochronous list. */
@@ -893,9 +865,9 @@ ohci_init(ohci_softc_t *sc)
 		err = ENOMEM;
 		goto bad3;
 	}
-	sc->sc_isoc_head->ed->ed_flags |= HTOO32(OHCI_ED_SKIP);
+	sc->sc_isoc_head->ed.ed_flags |= HTOO32(OHCI_ED_SKIP);
 	usb_syncmem(&sc->sc_isoc_head->dma, sc->sc_isoc_head->offs,
-	    sizeof(*sc->sc_isoc_head->ed),
+	    sizeof(sc->sc_isoc_head->ed),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 	/* Allocate all the dummy EDs that make up the interrupt tree. */
@@ -909,14 +881,14 @@ ohci_init(ohci_softc_t *sc)
 		}
 		/* All ED fields are set to 0. */
 		sc->sc_eds[i] = sed;
-		sed->ed->ed_flags |= HTOO32(OHCI_ED_SKIP);
+		sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP);
 		if (i != 0)
 			psed = sc->sc_eds[(i-1) / 2];
 		else
 			psed= sc->sc_isoc_head;
 		sed->next = psed;
-		sed->ed->ed_nexted = HTOO32(psed->physaddr);
-		usb_syncmem(&sed->dma, sed->offs, sizeof(*sed->ed),
+		sed->ed.ed_nexted = HTOO32(psed->physaddr);
+		usb_syncmem(&sed->dma, sed->offs, sizeof(sed->ed),
 		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 	}
 	/*
@@ -1481,20 +1453,20 @@ ohci_softintr(void *v)
 	for (sdone = NULL, sidone = NULL; done != 0; ) {
 		std = ohci_hash_find_td(sc, done);
 		if (std != NULL) {
-			usb_syncmem(&std->dma, std->offs, sizeof(*std->td),
+			usb_syncmem(&std->dma, std->offs, sizeof(std->td),
 			    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
 			std->dnext = sdone;
-			done = O32TOH(std->td->td_nexttd);
+			done = O32TOH(std->td.td_nexttd);
 			sdone = std;
 			DPRINTFN(10, "add TD %#jx", (uintptr_t)std, 0, 0, 0);
 			continue;
 		}
 		sitd = ohci_hash_find_itd(sc, done);
 		if (sitd != NULL) {
-			usb_syncmem(&sitd->dma, sitd->offs, sizeof(*sitd->itd),
+			usb_syncmem(&sitd->dma, sitd->offs, sizeof(sitd->itd),
 			    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
 			sitd->dnext = sidone;
-			done = O32TOH(sitd->itd->itd_nextitd);
+			done = O32TOH(sitd->itd.itd_nextitd);
 			sidone = sitd;
 			DPRINTFN(5, "add ITD %#jx", (uintptr_t)sitd, 0, 0, 0);
 			continue;
@@ -1547,14 +1519,14 @@ ohci_softintr(void *v)
 			continue;
 
 		len = std->len;
-		if (std->td->td_cbp != 0)
-			len -= O32TOH(std->td->td_be) -
-			       O32TOH(std->td->td_cbp) + 1;
+		if (std->td.td_cbp != 0)
+			len -= O32TOH(std->td.td_be) -
+			       O32TOH(std->td.td_cbp) + 1;
 		DPRINTFN(10, "len=%jd, flags=%#jx", len, std->flags, 0, 0);
 		if (std->flags & OHCI_ADD_LEN)
 			xfer->ux_actlen += len;
 
-		cc = OHCI_TD_GET_CC(O32TOH(std->td->td_flags));
+		cc = OHCI_TD_GET_CC(O32TOH(std->td.td_flags));
 		if (cc == OHCI_CC_NO_ERROR) {
 			ohci_hash_rem_td(sc, std);
 			if (std->flags & OHCI_CALL_DONE) {
@@ -1581,11 +1553,11 @@ ohci_softintr(void *v)
 			ohci_soft_ed_t *sed = opipe->sed;
 
 			/* clear halt and TD chain, preserving toggle carry */
-			sed->ed->ed_headp = HTOO32(p->physaddr |
-			    (O32TOH(sed->ed->ed_headp) & OHCI_TOGGLECARRY));
+			sed->ed.ed_headp = HTOO32(p->physaddr |
+			    (O32TOH(sed->ed.ed_headp) & OHCI_TOGGLECARRY));
 			usb_syncmem(&sed->dma,
 			    sed->offs + offsetof(ohci_ed_t, ed_headp),
-			    sizeof(sed->ed->ed_headp),
+			    sizeof(sed->ed.ed_headp),
 			    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 			OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF);
@@ -1841,17 +1813,17 @@ ohci_add_ed(ohci_softc_t *sc, ohci_soft_
 	KASSERT(mutex_owned(&sc->sc_lock));
 
 	usb_syncmem(&head->dma, head->offs + offsetof(ohci_ed_t, ed_nexted),
-	    sizeof(head->ed->ed_nexted),
+	    sizeof(head->ed.ed_nexted),
 	    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
 	sed->next = head->next;
-	sed->ed->ed_nexted = head->ed->ed_nexted;
+	sed->ed.ed_nexted = head->ed.ed_nexted;
 	usb_syncmem(&sed->dma, sed->offs + offsetof(ohci_ed_t, ed_nexted),
-	    sizeof(sed->ed->ed_nexted),
+	    sizeof(sed->ed.ed_nexted),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 	head->next = sed;
-	head->ed->ed_nexted = HTOO32(sed->physaddr);
+	head->ed.ed_nexted = HTOO32(sed->physaddr);
 	usb_syncmem(&head->dma, head->offs + offsetof(ohci_ed_t, ed_nexted),
-	    sizeof(head->ed->ed_nexted),
+	    sizeof(head->ed.ed_nexted),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 }
 
@@ -1871,12 +1843,12 @@ ohci_rem_ed(ohci_softc_t *sc, ohci_soft_
 	KASSERT(p != NULL);
 
 	usb_syncmem(&sed->dma, sed->offs + offsetof(ohci_ed_t, ed_nexted),
-	    sizeof(sed->ed->ed_nexted),
+	    sizeof(sed->ed.ed_nexted),
 	    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
 	p->next = sed->next;
-	p->ed->ed_nexted = sed->ed->ed_nexted;
+	p->ed.ed_nexted = sed->ed.ed_nexted;
 	usb_syncmem(&p->dma, p->offs + offsetof(ohci_ed_t, ed_nexted),
-	    sizeof(p->ed->ed_nexted),
+	    sizeof(p->ed.ed_nexted),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 }
 
@@ -1987,10 +1959,10 @@ ohci_dump_td(ohci_softc_t *sc, ohci_soft
 {
 	OHCIHIST_FUNC(); OHCIHIST_CALLED();
 
-	usb_syncmem(&std->dma, std->offs, sizeof(*std->td),
+	usb_syncmem(&std->dma, std->offs, sizeof(std->td),
 	    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
 
-	uint32_t flags = O32TOH(std->td->td_flags);
+	uint32_t flags = O32TOH(std->td.td_flags);
 	DPRINTF("TD(%#jx) at 0x%08jx:", (uintptr_t)std, std->physaddr, 0, 0);
 	DPRINTF("    round=%jd DP=%jx DI=%jx T=%jx",
 	    !!(flags & OHCI_TD_R),
@@ -2000,9 +1972,9 @@ ohci_dump_td(ohci_softc_t *sc, ohci_soft
 	DPRINTF("    EC=%jd CC=%jd", OHCI_TD_GET_EC(flags),
 	    OHCI_TD_GET_CC(flags), 0, 0);
 	DPRINTF("    td_cbp=0x%08jx td_nexttd=0x%08jx td_be=0x%08jx",
-	       (u_long)O32TOH(std->td->td_cbp),
-	       (u_long)O32TOH(std->td->td_nexttd),
-	       (u_long)O32TOH(std->td->td_be), 0);
+	       (u_long)O32TOH(std->td.td_cbp),
+	       (u_long)O32TOH(std->td.td_nexttd),
+	       (u_long)O32TOH(std->td.td_be), 0);
 }
 
 void
@@ -2010,31 +1982,31 @@ ohci_dump_itd(ohci_softc_t *sc, ohci_sof
 {
 	OHCIHIST_FUNC(); OHCIHIST_CALLED();
 
-	usb_syncmem(&sitd->dma, sitd->offs, sizeof(*sitd->itd),
+	usb_syncmem(&sitd->dma, sitd->offs, sizeof(sitd->itd),
 	    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
 
-	uint32_t flags = O32TOH(sitd->itd->itd_flags);
+	uint32_t flags = O32TOH(sitd->itd.itd_flags);
 	DPRINTF("ITD(%#jx) at 0x%08jx", (uintptr_t)sitd, sitd->physaddr, 0, 0);
 	DPRINTF("    sf=%jd di=%jd fc=%jd cc=%jd",
 	    OHCI_ITD_GET_SF(flags), OHCI_ITD_GET_DI(flags),
 	    OHCI_ITD_GET_FC(flags), OHCI_ITD_GET_CC(flags));
 	DPRINTF("    bp0=0x%08jx next=0x%08jx be=0x%08jx",
-	    O32TOH(sitd->itd->itd_bp0),
-	    O32TOH(sitd->itd->itd_nextitd),
-	    O32TOH(sitd->itd->itd_be), 0);
+	    O32TOH(sitd->itd.itd_bp0),
+	    O32TOH(sitd->itd.itd_nextitd),
+	    O32TOH(sitd->itd.itd_be), 0);
 	CTASSERT(OHCI_ITD_NOFFSET == 8);
 	DPRINTF("    offs[0] = 0x%04jx  offs[1] = 0x%04jx  "
 	    "offs[2] = 0x%04jx  offs[3] = 0x%04jx",
-	    O16TOH(sitd->itd->itd_offset[0]),
-	    O16TOH(sitd->itd->itd_offset[1]),
-	    O16TOH(sitd->itd->itd_offset[2]),
-	    O16TOH(sitd->itd->itd_offset[3]));
+	    O16TOH(sitd->itd.itd_offset[0]),
+	    O16TOH(sitd->itd.itd_offset[1]),
+	    O16TOH(sitd->itd.itd_offset[2]),
+	    O16TOH(sitd->itd.itd_offset[3]));
 	DPRINTF("    offs[4] = 0x%04jx  offs[5] = 0x%04jx  "
 	    "offs[6] = 0x%04jx  offs[7] = 0x%04jx",
-	    O16TOH(sitd->itd->itd_offset[4]),
-	    O16TOH(sitd->itd->itd_offset[5]),
-	    O16TOH(sitd->itd->itd_offset[6]),
-	    O16TOH(sitd->itd->itd_offset[7]));
+	    O16TOH(sitd->itd.itd_offset[4]),
+	    O16TOH(sitd->itd.itd_offset[5]),
+	    O16TOH(sitd->itd.itd_offset[6]),
+	    O16TOH(sitd->itd.itd_offset[7]));
 }
 
 void
@@ -2049,10 +2021,10 @@ ohci_dump_ed(ohci_softc_t *sc, ohci_soft
 {
 	OHCIHIST_FUNC(); OHCIHIST_CALLED();
 
-	usb_syncmem(&sed->dma, sed->offs, sizeof(*sed->ed),
+	usb_syncmem(&sed->dma, sed->offs, sizeof(sed->ed),
 	    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
 
-	uint32_t flags = O32TOH(sed->ed->ed_flags);
+	uint32_t flags = O32TOH(sed->ed.ed_flags);
 	DPRINTF("ED(%#jx) at 0x%08jx:", (uintptr_t)sed, sed->physaddr, 0, 0);
 	DPRINTF("    addr=%jd endpt=%jd maxp=%jd",
 	    OHCI_ED_GET_FA(flags),
@@ -2064,12 +2036,12 @@ ohci_dump_ed(ohci_softc_t *sc, ohci_soft
 	    __SHIFTOUT(flags, OHCI_ED_SPEED),
 	    __SHIFTOUT(flags, OHCI_ED_SKIP),
 	    OHCI_ED_GET_FORMAT(flags));
-	DPRINTF("    tailp=0x%08jx", (u_long)O32TOH(sed->ed->ed_tailp),
+	DPRINTF("    tailp=0x%08jx", (u_long)O32TOH(sed->ed.ed_tailp),
 	    0, 0, 0);
 	DPRINTF("    headp=0x%08jx nexted=0x%08jx halted=%jd carry=%jd",
-	    O32TOH(sed->ed->ed_headp), O32TOH(sed->ed->ed_nexted),
-	    !!(O32TOH(sed->ed->ed_headp) & OHCI_HALTED),
-	    !!(O32TOH(sed->ed->ed_headp) & OHCI_TOGGLECARRY));
+	    O32TOH(sed->ed.ed_headp), O32TOH(sed->ed.ed_nexted),
+	    !!(O32TOH(sed->ed.ed_headp) & OHCI_HALTED),
+	    !!(O32TOH(sed->ed.ed_headp) & OHCI_TOGGLECARRY));
 }
 #endif
 
@@ -2144,16 +2116,16 @@ ohci_open(struct usbd_pipe *pipe)
 			    OHCI_ED_SET_FORMAT(OHCI_ED_FORMAT_GEN) |
 			    OHCI_ED_SET_DIR(OHCI_ED_DIR_TD);
 		}
-		sed->ed->ed_flags = HTOO32(
+		sed->ed.ed_flags = HTOO32(
 			OHCI_ED_SET_FA(addr) |
 			OHCI_ED_SET_EN(UE_GET_ADDR(ed->bEndpointAddress)) |
 			(dev->ud_speed == USB_SPEED_LOW ? OHCI_ED_SPEED : 0) |
 			fmt |
 			OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize)));
-		sed->ed->ed_headp = HTOO32(tdphys |
+		sed->ed.ed_headp = HTOO32(tdphys |
 		    (pipe->up_endpoint->ue_toggle ? OHCI_TOGGLECARRY : 0));
-		sed->ed->ed_tailp = HTOO32(tdphys);
-		usb_syncmem(&sed->dma, sed->offs, sizeof(*sed->ed),
+		sed->ed.ed_tailp = HTOO32(tdphys);
+		usb_syncmem(&sed->dma, sed->offs, sizeof(sed->ed),
 		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 		switch (xfertype) {
@@ -2216,16 +2188,15 @@ ohci_close_pipe(struct usbd_pipe *pipe, 
 	KASSERT(mutex_owned(&sc->sc_lock));
 
 #ifdef DIAGNOSTIC
-	// XXXNH usb_sync
-	sed->ed->ed_flags |= HTOO32(OHCI_ED_SKIP);
-	if ((O32TOH(sed->ed->ed_tailp) & OHCI_HEADMASK) !=
-	    (O32TOH(sed->ed->ed_headp) & OHCI_HEADMASK)) {
+	sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP);
+	if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) !=
+	    (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK)) {
 		ohci_soft_td_t *std;
-		std = ohci_hash_find_td(sc, O32TOH(sed->ed->ed_headp));
+		std = ohci_hash_find_td(sc, O32TOH(sed->ed.ed_headp));
 		printf("ohci_close_pipe: pipe not empty sed=%p hd=%#x "
 		       "tl=%#x pipe=%p, std=%p\n", sed,
-		       (int)O32TOH(sed->ed->ed_headp),
-		       (int)O32TOH(sed->ed->ed_tailp),
+		       (int)O32TOH(sed->ed.ed_headp),
+		       (int)O32TOH(sed->ed.ed_tailp),
 		       pipe, std);
 #ifdef OHCI_DEBUG
 		usbd_dump_pipe(&opipe->pipe);
@@ -2234,8 +2205,8 @@ ohci_close_pipe(struct usbd_pipe *pipe, 
 			ohci_dump_td(sc, std);
 #endif
 		usb_delay_ms(&sc->sc_bus, 2);
-		if ((O32TOH(sed->ed->ed_tailp) & OHCI_HEADMASK) !=
-		    (O32TOH(sed->ed->ed_headp) & OHCI_HEADMASK))
+		if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) !=
+		    (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK))
 			printf("ohci_close_pipe: pipe still not empty\n");
 	}
 #endif
@@ -2243,7 +2214,7 @@ ohci_close_pipe(struct usbd_pipe *pipe, 
 	/* Make sure the host controller is not touching this ED */
 	usb_delay_ms(&sc->sc_bus, 1);
 	pipe->up_endpoint->ue_toggle =
-	    (O32TOH(sed->ed->ed_headp) & OHCI_TOGGLECARRY) ? 1 : 0;
+	    (O32TOH(sed->ed.ed_headp) & OHCI_TOGGLECARRY) ? 1 : 0;
 	ohci_free_sed_locked(sc, opipe->sed);
 }
 
@@ -2409,13 +2380,13 @@ ohci_abortx(struct usbd_xfer *xfer)
 	/* Zap headp register if hardware pointed inside the xfer. */
 	if (hit) {
 		DPRINTFN(1, "set hd=0x%08jx, tl=0x%08jx",  (int)p->physaddr,
-		    (int)O32TOH(sed->ed->ed_tailp), 0, 0);
+		    (int)O32TOH(sed->ed.ed_tailp), 0, 0);
 		/* unlink TDs, preserving toggle carry */
-		sed->ed->ed_headp = HTOO32(p->physaddr |
-		    (O32TOH(sed->ed->ed_headp) & OHCI_TOGGLECARRY));
+		sed->ed.ed_headp = HTOO32(p->physaddr |
+		    (O32TOH(sed->ed.ed_headp) & OHCI_TOGGLECARRY));
 		usb_syncmem(&sed->dma,
 		    sed->offs + offsetof(ohci_ed_t, ed_headp),
-		    sizeof(sed->ed->ed_headp),
+		    sizeof(sed->ed.ed_headp),
 		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 	} else {
 		DPRINTFN(1, "no hit", 0, 0, 0, 0);
@@ -2425,11 +2396,11 @@ ohci_abortx(struct usbd_xfer *xfer)
 	 * HC Step 4: Turn on hardware again.
 	 */
 	usb_syncmem(&sed->dma, sed->offs + offsetof(ohci_ed_t, ed_flags),
-	    sizeof(sed->ed->ed_flags),
+	    sizeof(sed->ed.ed_flags),
 	    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
-	sed->ed->ed_flags &= HTOO32(~OHCI_ED_SKIP); /* remove hardware skip */
+	sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); /* remove hardware skip */
 	usb_syncmem(&sed->dma, sed->offs + offsetof(ohci_ed_t, ed_flags),
-	    sizeof(sed->ed->ed_flags),
+	    sizeof(sed->ed.ed_flags),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 dying:
 	DPRINTFN(14, "end", 0, 0, 0, 0);
@@ -2837,13 +2808,13 @@ ohci_device_ctrl_start(struct usbd_xfer 
 	DPRINTFN(10, "xfer=%#jx new tail=%#jx held at %#jx", (uintptr_t)ox,
 	    (uintptr_t)tail, (uintptr_t)tail->held, 0);
 
-	KASSERTMSG(OHCI_ED_GET_FA(O32TOH(sed->ed->ed_flags)) == dev->ud_addr,
+	KASSERTMSG(OHCI_ED_GET_FA(O32TOH(sed->ed.ed_flags)) == dev->ud_addr,
 	    "address ED %" __PRIuBITS " pipe %d\n",
-	    OHCI_ED_GET_FA(O32TOH(sed->ed->ed_flags)), dev->ud_addr);
-	KASSERTMSG(OHCI_ED_GET_MAXP(O32TOH(sed->ed->ed_flags)) ==
+	    OHCI_ED_GET_FA(O32TOH(sed->ed.ed_flags)), dev->ud_addr);
+	KASSERTMSG(OHCI_ED_GET_MAXP(O32TOH(sed->ed.ed_flags)) ==
 	    UGETW(opipe->pipe.up_endpoint->ue_edesc->wMaxPacketSize),
 	    "MPL ED %" __PRIuBITS " pipe %d\n",
-	    OHCI_ED_GET_MAXP(O32TOH(sed->ed->ed_flags)),
+	    OHCI_ED_GET_MAXP(O32TOH(sed->ed.ed_flags)),
 	    UGETW(opipe->pipe.up_endpoint->ue_edesc->wMaxPacketSize));
 
 	/* next will point to data if len != 0 */
@@ -2857,21 +2828,21 @@ ohci_device_ctrl_start(struct usbd_xfer 
 		next = ox->ox_stds[0];
 		ohci_reset_std_chain(sc, xfer, len, isread, next, &end);
 
-		end->td->td_nexttd = HTOO32(stat->physaddr);
+		end->td.td_nexttd = HTOO32(stat->physaddr);
 		end->nexttd = stat;
 
-		usb_syncmem(&end->dma, end->offs, sizeof(*end->td),
+		usb_syncmem(&end->dma, end->offs, sizeof(end->td),
 		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 		usb_syncmem(&xfer->ux_dmabuf, 0, len,
 		    isread ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
 		std = ox->ox_stds[0];
 		/* Start toggle at 1 and then use the carried toggle. */
-		std->td->td_flags &= HTOO32(~OHCI_TD_TOGGLE_MASK);
-		std->td->td_flags |= HTOO32(OHCI_TD_SET_TOGGLE(OHCI_TD_TOGGLE_1));
+		std->td.td_flags &= HTOO32(~OHCI_TD_TOGGLE_MASK);
+		std->td.td_flags |= HTOO32(OHCI_TD_SET_TOGGLE(OHCI_TD_TOGGLE_1));
 		usb_syncmem(&std->dma,
 		    std->offs + offsetof(ohci_td_t, td_flags),
-		    sizeof(std->td->td_flags),
+		    sizeof(std->td.td_flags),
 		    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 	}
 
@@ -2884,15 +2855,15 @@ ohci_device_ctrl_start(struct usbd_xfer 
 	memcpy(KERNADDR(&opipe->ctrl.reqdma, 0), req, sizeof(*req));
 	usb_syncmem(&opipe->ctrl.reqdma, 0, sizeof(*req), BUS_DMASYNC_PREWRITE);
 
-	setup->td->td_flags = HTOO32(
+	setup->td.td_flags = HTOO32(
 	    OHCI_TD_SET_DP(OHCI_TD_DP_SETUP) |
 	    OHCI_TD_SET_CC(OHCI_TD_NOCC) |
 	    OHCI_TD_SET_TOGGLE(OHCI_TD_TOGGLE_0) |
 	    OHCI_TD_SET_DI(OHCI_TD_NOINTR)
 	    );
-	setup->td->td_cbp = HTOO32(DMAADDR(&opipe->ctrl.reqdma, 0));
-	setup->td->td_nexttd = HTOO32(next->physaddr);
-	setup->td->td_be = HTOO32(O32TOH(setup->td->td_cbp) + sizeof(*req) - 1);
+	setup->td.td_cbp = HTOO32(DMAADDR(&opipe->ctrl.reqdma, 0));
+	setup->td.td_nexttd = HTOO32(next->physaddr);
+	setup->td.td_be = HTOO32(O32TOH(setup->td.td_cbp) + sizeof(*req) - 1);
 	setup->nexttd = next;
 	setup->len = 0;
 	setup->xfer = xfer;
@@ -2900,32 +2871,32 @@ ohci_device_ctrl_start(struct usbd_xfer 
 	ohci_hash_add_td(sc, setup);
 
 	xfer->ux_hcpriv = setup;
-	usb_syncmem(&setup->dma, setup->offs, sizeof(*setup->td),
+	usb_syncmem(&setup->dma, setup->offs, sizeof(setup->td),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
-	stat->td->td_flags = HTOO32(
+	stat->td.td_flags = HTOO32(
 	    OHCI_TD_SET_DP(isread ? OHCI_TD_DP_OUT : OHCI_TD_DP_IN) |
 	    OHCI_TD_SET_CC(OHCI_TD_NOCC) |
 	    OHCI_TD_SET_TOGGLE(OHCI_TD_TOGGLE_1) |
 	    OHCI_TD_SET_DI(1)
 	    );
-	stat->td->td_cbp = 0;
-	stat->td->td_nexttd = HTOO32(tail->physaddr);
-	stat->td->td_be = 0;
+	stat->td.td_cbp = 0;
+	stat->td.td_nexttd = HTOO32(tail->physaddr);
+	stat->td.td_be = 0;
 	stat->nexttd = tail;
 	stat->flags = OHCI_CALL_DONE;
 	stat->len = 0;
 	stat->xfer = xfer;
 	ohci_hash_add_td(sc, stat);
 
-	usb_syncmem(&stat->dma, stat->offs, sizeof(*stat->td),
+	usb_syncmem(&stat->dma, stat->offs, sizeof(stat->td),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
-	memset(tail->td, 0, sizeof(*tail->td));
+	memset(&tail->td, 0, sizeof(tail->td));
 	tail->nexttd = NULL;
 	tail->xfer = NULL;
 
-	usb_syncmem(&tail->dma, tail->offs, sizeof(*tail->td),
+	usb_syncmem(&tail->dma, tail->offs, sizeof(tail->td),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 #ifdef OHCI_DEBUG
@@ -2938,10 +2909,10 @@ ohci_device_ctrl_start(struct usbd_xfer 
 #endif
 
 	/* Insert ED in schedule */
-	sed->ed->ed_tailp = HTOO32(tail->physaddr);
+	sed->ed.ed_tailp = HTOO32(tail->physaddr);
 	usb_syncmem(&sed->dma,
 	    sed->offs + offsetof(ohci_ed_t, ed_tailp),
-	    sizeof(sed->ed->ed_tailp),
+	    sizeof(sed->ed.ed_tailp),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 	OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF);
 	usbd_xfer_schedule_timeout(xfer);
@@ -3110,13 +3081,13 @@ ohci_device_bulk_start(struct usbd_xfer 
 
 	/* point at sentinel */
 	tail = opipe->tail.td;
-	memset(tail->td, 0, sizeof(*tail->td));
+	memset(&tail->td, 0, sizeof(tail->td));
 	tail->held = &opipe->tail.td;
 	tail->nexttd = NULL;
 	tail->xfer = NULL;
 	DPRINTFN(10, "xfer=%#jx new tail=%#jx held at %#ux",
 	    (uintptr_t)ox, (uintptr_t)tail, (uintptr_t)tail->held, 0);
-	usb_syncmem(&tail->dma, tail->offs, sizeof(*tail->td),
+	usb_syncmem(&tail->dma, tail->offs, sizeof(tail->td),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 	xfer->ux_hcpriv = data;
 
@@ -3125,20 +3096,20 @@ ohci_device_bulk_start(struct usbd_xfer 
 	KASSERT(opipe->tail.td == tail);
 
 	/* We want interrupt at the end of the transfer. */
-	last->td->td_flags &= HTOO32(~OHCI_TD_DI_MASK);
-	last->td->td_flags |= HTOO32(OHCI_TD_SET_DI(1));
-	last->td->td_nexttd = HTOO32(tail->physaddr);
+	last->td.td_flags &= HTOO32(~OHCI_TD_DI_MASK);
+	last->td.td_flags |= HTOO32(OHCI_TD_SET_DI(1));
+	last->td.td_nexttd = HTOO32(tail->physaddr);
 	last->nexttd = tail;
 	last->flags |= OHCI_CALL_DONE;
-	usb_syncmem(&last->dma, last->offs, sizeof(*last->td),
+	usb_syncmem(&last->dma, last->offs, sizeof(last->td),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 	DPRINTFN(4, "ed_flags=0x%08jx td_flags=0x%08jx "
 		    "td_cbp=0x%08jx td_be=0x%08jx",
-		    (int)O32TOH(sed->ed->ed_flags),
-		    (int)O32TOH(data->td->td_flags),
-		    (int)O32TOH(data->td->td_cbp),
-		    (int)O32TOH(data->td->td_be));
+		    (int)O32TOH(sed->ed.ed_flags),
+		    (int)O32TOH(data->td.td_flags),
+		    (int)O32TOH(data->td.td_cbp),
+		    (int)O32TOH(data->td.td_be));
 
 #ifdef OHCI_DEBUG
 	DPRINTFN(5, "--- dump start ---", 0, 0, 0, 0);
@@ -3153,11 +3124,11 @@ ohci_device_bulk_start(struct usbd_xfer 
 	for (tdp = data; tdp != tail; tdp = tdp->nexttd) {
 		KASSERT(tdp->xfer == xfer);
 	}
-	usb_syncmem(&sed->dma, sed->offs, sizeof(*sed->ed),
+	usb_syncmem(&sed->dma, sed->offs, sizeof(sed->ed),
 	    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
-	sed->ed->ed_tailp = HTOO32(tail->physaddr);
-	sed->ed->ed_flags &= HTOO32(~OHCI_ED_SKIP);
-	usb_syncmem(&sed->dma, sed->offs, sizeof(*sed->ed),
+	sed->ed.ed_tailp = HTOO32(tail->physaddr);
+	sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP);
+	usb_syncmem(&sed->dma, sed->offs, sizeof(sed->ed),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 	OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF);
 	usbd_xfer_schedule_timeout(xfer);
@@ -3302,13 +3273,13 @@ ohci_device_intr_start(struct usbd_xfer 
 
 	/* point at sentinel */
 	tail = opipe->tail.td;
-	memset(tail->td, 0, sizeof(*tail->td));
+	memset(&tail->td, 0, sizeof(tail->td));
 	tail->held = &opipe->tail.td;
 	tail->nexttd = NULL;
 	tail->xfer = NULL;
 	DPRINTFN(10, "xfer=%#jx new tail=%#jx held at %#jx",
 	    (uintptr_t)ox, (uintptr_t)tail, (uintptr_t)tail->held, 0);
-	usb_syncmem(&tail->dma, tail->offs, sizeof(*tail->td),
+	usb_syncmem(&tail->dma, tail->offs, sizeof(tail->td),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 	xfer->ux_hcpriv = data;
 
@@ -3317,13 +3288,13 @@ ohci_device_intr_start(struct usbd_xfer 
 	KASSERT(opipe->tail.td == tail);
 
 	/* We want interrupt at the end of the transfer. */
-	last->td->td_flags &= HTOO32(~OHCI_TD_DI_MASK);
-	last->td->td_flags |= HTOO32(OHCI_TD_SET_DI(1));
+	last->td.td_flags &= HTOO32(~OHCI_TD_DI_MASK);
+	last->td.td_flags |= HTOO32(OHCI_TD_SET_DI(1));
 
-	last->td->td_nexttd = HTOO32(tail->physaddr);
+	last->td.td_nexttd = HTOO32(tail->physaddr);
 	last->nexttd = tail;
 	last->flags |= OHCI_CALL_DONE;
-	usb_syncmem(&last->dma, last->offs, sizeof(*last->td),
+	usb_syncmem(&last->dma, last->offs, sizeof(last->td),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 #ifdef OHCI_DEBUG
@@ -3336,11 +3307,11 @@ ohci_device_intr_start(struct usbd_xfer 
 #endif
 
 	/* Insert ED in schedule */
-	usb_syncmem(&sed->dma, sed->offs, sizeof(*sed->ed),
+	usb_syncmem(&sed->dma, sed->offs, sizeof(sed->ed),
 	    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
-	sed->ed->ed_tailp = HTOO32(tail->physaddr);
-	sed->ed->ed_flags &= HTOO32(~OHCI_ED_SKIP);
-	usb_syncmem(&sed->dma, sed->offs, sizeof(*sed->ed),
+	sed->ed.ed_tailp = HTOO32(tail->physaddr);
+	sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP);
+	usb_syncmem(&sed->dma, sed->offs, sizeof(sed->ed),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 	xfer->ux_status = USBD_IN_PROGRESS;
@@ -3377,22 +3348,22 @@ ohci_device_intr_close(struct usbd_pipe 
 	DPRINTFN(1, "pipe=%#jx nslots=%jd pos=%jd", (uintptr_t)pipe, nslots,
 	    pos, 0);
 	usb_syncmem(&sed->dma, sed->offs,
-	    sizeof(*sed->ed), BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
-	sed->ed->ed_flags |= HTOO32(OHCI_ED_SKIP);
+	    sizeof(sed->ed), BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
+	sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP);
 	usb_syncmem(&sed->dma, sed->offs + offsetof(ohci_ed_t, ed_flags),
-	    sizeof(sed->ed->ed_flags),
+	    sizeof(sed->ed.ed_flags),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
-	if ((O32TOH(sed->ed->ed_tailp) & OHCI_HEADMASK) !=
-	    (O32TOH(sed->ed->ed_headp) & OHCI_HEADMASK))
+	if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) !=
+	    (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK))
 		usb_delay_ms_locked(&sc->sc_bus, 2, &sc->sc_lock);
 
 	for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next)
 		continue;
 	KASSERT(p);
 	p->next = sed->next;
-	p->ed->ed_nexted = sed->ed->ed_nexted;
+	p->ed.ed_nexted = sed->ed.ed_nexted;
 	usb_syncmem(&p->dma, p->offs + offsetof(ohci_ed_t, ed_nexted),
-	    sizeof(p->ed->ed_nexted),
+	    sizeof(p->ed.ed_nexted),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 	for (j = 0; j < nslots; j++)
@@ -3654,15 +3625,15 @@ ohci_device_isoc_enter(struct usbd_xfer 
 			KASSERT(j < ox->ox_nsitd);
 
 			/* Fill current ITD */
-			sitd->itd->itd_flags = HTOO32(
+			sitd->itd.itd_flags = HTOO32(
 			    OHCI_ITD_SET_CC(OHCI_ITD_NOCC) |
 			    OHCI_ITD_SET_SF(isoc->next) |
 			    OHCI_ITD_SET_DI(6) | /* delay intr a little */
 			    OHCI_ITD_SET_FC(ncur)
 			    );
-			sitd->itd->itd_bp0 = HTOO32(bp0);
-			sitd->itd->itd_nextitd = HTOO32(nsitd->physaddr);
-			sitd->itd->itd_be = HTOO32(end);
+			sitd->itd.itd_bp0 = HTOO32(bp0);
+			sitd->itd.itd_nextitd = HTOO32(nsitd->physaddr);
+			sitd->itd.itd_be = HTOO32(end);
 			sitd->nextitd = nsitd;
 			sitd->xfer = xfer;
 			sitd->flags = 0;
@@ -3670,7 +3641,7 @@ ohci_device_isoc_enter(struct usbd_xfer 
 			sitd->isdone = false;
 #endif
 			ohci_hash_add_itd(sc, sitd);
-			usb_syncmem(&sitd->dma, sitd->offs, sizeof(*sitd->itd),
+			usb_syncmem(&sitd->dma, sitd->offs, sizeof(sitd->itd),
 			    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 			sitd = nsitd;
@@ -3678,7 +3649,7 @@ ohci_device_isoc_enter(struct usbd_xfer 
 			bp0 = bp1 = OHCI_PAGE(buf);
 			ncur = 0;
 		}
-		sitd->itd->itd_offset[ncur] = HTOO16(OHCI_ITD_MK_OFFS(offs));
+		sitd->itd.itd_offset[ncur] = HTOO16(OHCI_ITD_MK_OFFS(offs));
 		end = nend;
 		offs = noffs;
 	}
@@ -3686,23 +3657,23 @@ ohci_device_isoc_enter(struct usbd_xfer 
 
 	/* point at sentinel */
 	tail = opipe->tail.itd;
-	memset(tail->itd, 0, sizeof(*tail->itd));
+	memset(&tail->itd, 0, sizeof(tail->itd));
 	tail->held = &opipe->tail.itd;
 	tail->nextitd = NULL;
 	tail->xfer = NULL;
-	usb_syncmem(&tail->dma, tail->offs, sizeof(*tail->itd),
+	usb_syncmem(&tail->dma, tail->offs, sizeof(tail->itd),
 	    BUS_DMASYNC_PREWRITE);
 
 	/* Fixup last used ITD */
-	sitd->itd->itd_flags = HTOO32(
+	sitd->itd.itd_flags = HTOO32(
 	    OHCI_ITD_SET_CC(OHCI_ITD_NOCC) |
 	    OHCI_ITD_SET_SF(isoc->next) |
 	    OHCI_ITD_SET_DI(0) |
 	    OHCI_ITD_SET_FC(ncur)
 	    );
-	sitd->itd->itd_bp0 = HTOO32(bp0);
-	sitd->itd->itd_nextitd = HTOO32(tail->physaddr);
-	sitd->itd->itd_be = HTOO32(end);
+	sitd->itd.itd_bp0 = HTOO32(bp0);
+	sitd->itd.itd_nextitd = HTOO32(tail->physaddr);
+	sitd->itd.itd_be = HTOO32(end);
 	sitd->nextitd = tail;
 	sitd->xfer = xfer;
 	sitd->flags = OHCI_CALL_DONE;
@@ -3710,7 +3681,7 @@ ohci_device_isoc_enter(struct usbd_xfer 
 	sitd->isdone = false;
 #endif
 	ohci_hash_add_itd(sc, sitd);
-	usb_syncmem(&sitd->dma, sitd->offs, sizeof(*sitd->itd),
+	usb_syncmem(&sitd->dma, sitd->offs, sizeof(sitd->itd),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 	isoc->next = isoc->next + ncur;
@@ -3765,11 +3736,11 @@ ohci_device_isoc_abort(struct usbd_xfer 
 	xfer->ux_status = USBD_CANCELLED;
 
 	sed = opipe->sed;
-	usb_syncmem(&sed->dma, sed->offs, sizeof(*sed->ed),
+	usb_syncmem(&sed->dma, sed->offs, sizeof(sed->ed),
 	    BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
-	sed->ed->ed_flags |= HTOO32(OHCI_ED_SKIP); /* force hardware skip */
+	sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); /* force hardware skip */
 	usb_syncmem(&sed->dma, sed->offs + offsetof(ohci_ed_t, ed_flags),
-	    sizeof(sed->ed->ed_flags),
+	    sizeof(sed->ed.ed_flags),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
 	sitd = xfer->ux_hcpriv;
@@ -3789,9 +3760,9 @@ ohci_device_isoc_abort(struct usbd_xfer 
 	/* Run callback. */
 	usb_transfer_complete(xfer);
 
-	sed->ed->ed_headp = HTOO32(sitd->physaddr); /* unlink TDs */
-	sed->ed->ed_flags &= HTOO32(~OHCI_ED_SKIP); /* remove hardware skip */
-	usb_syncmem(&sed->dma, sed->offs, sizeof(*sed->ed),
+	sed->ed.ed_headp = HTOO32(sitd->physaddr); /* unlink TDs */
+	sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); /* remove hardware skip */
+	usb_syncmem(&sed->dma, sed->offs, sizeof(sed->ed),
 	    BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
 
  done:

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