From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:58394 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758048AbdACUGw (ORCPT ); Tue, 3 Jan 2017 15:06:52 -0500 Subject: Patch "usbip: vudc: fix: Clear already_seen flag also for ep0" has been added to the 4.9-stable tree To: k.opasiak@samsung.com, gregkh@linuxfoundation.org, shuahkh@osg.samsung.com Cc: , From: Date: Tue, 03 Jan 2017 20:57:37 +0100 Message-ID: <1483473457208232@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled usbip: vudc: fix: Clear already_seen flag also for ep0 to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: usbip-vudc-fix-clear-already_seen-flag-also-for-ep0.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 3e448e13a662fb20145916636127995cbf37eb83 Mon Sep 17 00:00:00 2001 From: Krzysztof Opasiak Date: Thu, 1 Dec 2016 19:14:37 +0100 Subject: usbip: vudc: fix: Clear already_seen flag also for ep0 From: Krzysztof Opasiak commit 3e448e13a662fb20145916636127995cbf37eb83 upstream. ep_list inside gadget structure doesn't contain ep0. It is stored separately in ep0 field. This causes an urb hang if gadget driver decides to delay setup handling. On host side this is visible as timeout error when setting configuration. This bug can be reproduced using for example any gadget with mass storage function. Fixes: abdb29574322 ("usbip: vudc: Add vudc_transfer") Signed-off-by: Krzysztof Opasiak Acked-by: Shuah Khan Signed-off-by: Greg Kroah-Hartman --- drivers/usb/usbip/vudc_transfer.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/usb/usbip/vudc_transfer.c +++ b/drivers/usb/usbip/vudc_transfer.c @@ -339,6 +339,8 @@ static void v_timer(unsigned long _vudc) total = timer->frame_limit; } + /* We have to clear ep0 flags separately as it's not on the list */ + udc->ep[0].already_seen = 0; list_for_each_entry(_ep, &udc->gadget.ep_list, ep_list) { ep = to_vep(_ep); ep->already_seen = 0; Patches currently in stable-queue which might be from k.opasiak@samsung.com are queue-4.9/usbip-vudc-fix-clear-already_seen-flag-also-for-ep0.patch