[src/trunk]: src/sys/dev/usb Use ux_bufsize rather than ux_length in isoc pat...

[jakllsch <jakllsch%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/79f1accbcf75
branches:  trunk
changeset: 932689:79f1accbcf75
user:      jakllsch <jakllsch%NetBSD.org@localhost>
date:      Wed May 13 19:33:48 2020 +0000

description:
Use ux_bufsize rather than ux_length in isoc path usb_syncmem calls.

ux_length is always 0 for isoc pipes, so it could not be used here.

To do: revisit this for other host controllers, uhci and ehci in particular?

diffstat:

 sys/dev/usb/ohci.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (36 lines):

diff -r 67b6a4d5740a -r 79f1accbcf75 sys/dev/usb/ohci.c
--- a/sys/dev/usb/ohci.c        Wed May 13 18:44:51 2020 +0000
+++ b/sys/dev/usb/ohci.c        Wed May 13 19:33:48 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ohci.c,v 1.302 2020/05/13 18:44:51 jakllsch Exp $      */
+/*     $NetBSD: ohci.c,v 1.303 2020/05/13 19:33:48 jakllsch Exp $      */
 
 /*
  * Copyright (c) 1998, 2004, 2005, 2012 The NetBSD Foundation, Inc.
@@ -41,7 +41,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.302 2020/05/13 18:44:51 jakllsch Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.303 2020/05/13 19:33:48 jakllsch Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_usb.h"
@@ -3463,7 +3463,7 @@
        int isread =
            (UE_GET_DIR(xfer->ux_pipe->up_endpoint->ue_edesc->bEndpointAddress) == UE_DIR_IN);
 
-       usb_syncmem(&xfer->ux_dmabuf, 0, xfer->ux_length,
+       usb_syncmem(&xfer->ux_dmabuf, 0, xfer->ux_bufsize,
            isread ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
 
        if (isoc->next == -1) {
@@ -3642,7 +3642,7 @@
 
        DPRINTFN(10, "xfer=%#jx, actlen=%jd", (uintptr_t)xfer, xfer->ux_actlen,
            0, 0);
-       usb_syncmem(&xfer->ux_dmabuf, 0, xfer->ux_length,
+       usb_syncmem(&xfer->ux_dmabuf, 0, xfer->ux_bufsize,
            isread ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
 }