staging: usbip: bugfix add number of packets for isochronous frames

The number_of_packets was not transmitted for RET_SUBMIT packets. The
linux client used the stored number_of_packet from the submitted
request. The windows userland client does not do this however and needs
to know the number_of_packets to determine the size of the transmission.

Signed-off-by: Arjan Mels <arjan.mels@gmx.net>
Cc: Takahiro Hirofuchi <hirofuchi@users.sourceforge.net>
Cc: Max Vozeler <max@vozeler.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c
index 337abc48f714d11786402288258af4d38ca5636b..85622153ea7ca96708501c4c28118011ab72acb9 100644 (file)
--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -333,10 +333,11 @@ void usbip_dump_header(struct usbip_header *pdu)
                usbip_udbg("CMD_UNLINK: seq %u\n", pdu->u.cmd_unlink.seqnum);
                break;
        case USBIP_RET_SUBMIT:
-               usbip_udbg("RET_SUBMIT: st %d al %u sf %d ec %d\n",
+               usbip_udbg("RET_SUBMIT: st %d al %u sf %d #p %d ec %d\n",
                                pdu->u.ret_submit.status,
                                pdu->u.ret_submit.actual_length,
                                pdu->u.ret_submit.start_frame,
+                               pdu->u.ret_submit.number_of_packets,
                                pdu->u.ret_submit.error_count);
        case USBIP_RET_UNLINK:
                usbip_udbg("RET_UNLINK: status %d\n", pdu->u.ret_unlink.status);
@@ -520,6 +521,7 @@ static void usbip_pack_ret_submit(struct usbip_header *pdu, struct urb *urb,
                rpdu->status            = urb->status;
                rpdu->actual_length     = urb->actual_length;
                rpdu->start_frame       = urb->start_frame;
+               rpdu->number_of_packets = urb->number_of_packets;
                rpdu->error_count       = urb->error_count;
        } else {
                /* vhci_rx.c */
@@ -527,6 +529,7 @@ static void usbip_pack_ret_submit(struct usbip_header *pdu, struct urb *urb,
                urb->status             = rpdu->status;
                urb->actual_length      = rpdu->actual_length;
                urb->start_frame        = rpdu->start_frame;
+               urb->number_of_packets = rpdu->number_of_packets;
                urb->error_count        = rpdu->error_count;
        }
 }
@@ -595,11 +598,13 @@ static void correct_endian_ret_submit(struct usbip_header_ret_submit *pdu,
                cpu_to_be32s(&pdu->status);
                cpu_to_be32s(&pdu->actual_length);
                cpu_to_be32s(&pdu->start_frame);
+               cpu_to_be32s(&pdu->number_of_packets);
                cpu_to_be32s(&pdu->error_count);
        } else {
                be32_to_cpus(&pdu->status);
                be32_to_cpus(&pdu->actual_length);
                be32_to_cpus(&pdu->start_frame);
+               cpu_to_be32s(&pdu->number_of_packets);
                be32_to_cpus(&pdu->error_count);
        }
 }