From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out4-smtp.messagingengine.com ([66.111.4.28]:43915 "EHLO out4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752174AbcKGQti (ORCPT ); Mon, 7 Nov 2016 11:49:38 -0500 Subject: FAILED: patch "[PATCH] usb: dwc3: gadget: properly account queued requests" failed to apply to 4.8-stable tree To: felipe.balbi@linux.intel.com, stable@vger.kernel.org Cc: From: Date: Mon, 07 Nov 2016 17:49:48 +0100 Message-ID: <147853738821771@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: The patch below does not apply to the 4.8-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >>From a9c3ca5fae6bf73770f0576eaf57d5f1305ef4b3 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 5 Oct 2016 14:24:37 +0300 Subject: [PATCH] usb: dwc3: gadget: properly account queued requests Some requests could be accounted for multiple times. Let's fix that so each and every requests is accounted for only once. Cc: # v4.8 Fixes: 55a0237f8f47 ("usb: dwc3: gadget: use allocated/queued reqs for LST bit") Signed-off-by: Felipe Balbi diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 07cc8929f271..3c3ced128c77 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -783,6 +783,7 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, req->trb = trb; req->trb_dma = dwc3_trb_dma_offset(dep, trb); req->first_trb_index = dep->trb_enqueue; + dep->queued_requests++; } dwc3_ep_inc_enq(dep); @@ -833,8 +834,6 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, trb->ctrl |= DWC3_TRB_CTRL_HWO; - dep->queued_requests++; - trace_dwc3_prepare_trb(dep, trb); } @@ -1861,8 +1860,11 @@ static int __dwc3_cleanup_done_trbs(struct dwc3 *dwc, struct dwc3_ep *dep, unsigned int s_pkt = 0; unsigned int trb_status; - dep->queued_requests--; dwc3_ep_inc_deq(dep); + + if (req->trb == trb) + dep->queued_requests--; + trace_dwc3_complete_trb(dep, trb); /*