linux-kernel - [019/105] staging: usbip: bugfix add number of packets for isochronous frames

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Message-Id: <20110412143549.958864454@clark.kroah.org>
Date:	Tue, 12 Apr 2011 07:34:08 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Arjan Mels <arjan.mels@....net>,
	Takahiro Hirofuchi <hirofuchi@...rs.sourceforge.net>,
	Max Vozeler <max@...eler.com>
Subject: [019/105] staging: usbip: bugfix add number of packets for isochronous frames

2.6.38-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Arjan Mels <arjan.mels@....net>

commit 1325f85fa49f57df034869de430f7c302ae23109 upstream.

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@....net>
Cc: Takahiro Hirofuchi <hirofuchi@...rs.sourceforge.net>
Cc: Max Vozeler <max@...eler.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/staging/usbip/usbip_common.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -334,10 +334,11 @@ void usbip_dump_header(struct usbip_head
 		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);
@@ -625,6 +626,7 @@ static void usbip_pack_ret_submit(struct
 		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 */
@@ -632,6 +634,7 @@ static void usbip_pack_ret_submit(struct
 		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;
 	}
 }
@@ -700,11 +703,13 @@ static void correct_endian_ret_submit(st
 		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);
 	}
 }


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