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Date: Sat, 9 Jul 2022 10:26:11 +0800
From: kernel test robot <lkp@...el.com>
To: Wesley Cheng <quic_wcheng@...cinc.com>, balbi@...nel.org,
gregkh@...uxfoundation.org
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
linux-usb@...r.kernel.org, Thinh.Nguyen@...opsys.com,
quic_jackp@...cinc.com, Wesley Cheng <quic_wcheng@...cinc.com>
Subject: Re: [PATCH 3/5] usb: dwc3: gadget: Adjust IRQ management during soft
disconnect/connect
Hi Wesley,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on usb/usb-testing]
[also build test WARNING on linus/master v5.19-rc5 next-20220708]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Wesley-Cheng/Fix-controller-halt-and-endxfer-timeout-issues/20220709-025241
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: x86_64-randconfig-a002 (https://download.01.org/0day-ci/archive/20220709/202207091054.eGEUvBXn-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
# https://github.com/intel-lab-lkp/linux/commit/457fe4752b0f6dcc5c1b329f91003b7ffc518b44
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Wesley-Cheng/Fix-controller-halt-and-endxfer-timeout-issues/20220709-025241
git checkout 457fe4752b0f6dcc5c1b329f91003b7ffc518b44
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/usb/dwc3/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
drivers/usb/dwc3/gadget.c: In function 'dwc3_gadget_ep_dequeue':
>> drivers/usb/dwc3/gadget.c:2032:41: warning: unused variable 'flags' [-Wunused-variable]
2032 | unsigned long flags;
| ^~~~~
vim +/flags +2032 drivers/usb/dwc3/gadget.c
d4f1afe5e896c1 Felipe Balbi 2018-08-01 2022
72246da40f3719 Felipe Balbi 2011-08-19 2023 static int dwc3_gadget_ep_dequeue(struct usb_ep *ep,
72246da40f3719 Felipe Balbi 2011-08-19 2024 struct usb_request *request)
72246da40f3719 Felipe Balbi 2011-08-19 2025 {
72246da40f3719 Felipe Balbi 2011-08-19 2026 struct dwc3_request *req = to_dwc3_request(request);
72246da40f3719 Felipe Balbi 2011-08-19 2027 struct dwc3_request *r = NULL;
72246da40f3719 Felipe Balbi 2011-08-19 2028
72246da40f3719 Felipe Balbi 2011-08-19 2029 struct dwc3_ep *dep = to_dwc3_ep(ep);
72246da40f3719 Felipe Balbi 2011-08-19 2030 struct dwc3 *dwc = dep->dwc;
72246da40f3719 Felipe Balbi 2011-08-19 2031
72246da40f3719 Felipe Balbi 2011-08-19 @2032 unsigned long flags;
72246da40f3719 Felipe Balbi 2011-08-19 2033 int ret = 0;
72246da40f3719 Felipe Balbi 2011-08-19 2034
2c4cbe6e5a9c71 Felipe Balbi 2014-04-30 2035 trace_dwc3_ep_dequeue(req);
2c4cbe6e5a9c71 Felipe Balbi 2014-04-30 2036
457fe4752b0f6d Wesley Cheng 2022-07-08 2037 spin_lock(&dwc->lock);
72246da40f3719 Felipe Balbi 2011-08-19 2038
a7027ca69d82ae Thinh Nguyen 2020-03-05 2039 list_for_each_entry(r, &dep->cancelled_list, list) {
72246da40f3719 Felipe Balbi 2011-08-19 2040 if (r == req)
fcd2def6639293 Thinh Nguyen 2020-03-05 2041 goto out;
72246da40f3719 Felipe Balbi 2011-08-19 2042 }
72246da40f3719 Felipe Balbi 2011-08-19 2043
aa3342c8bb618a Felipe Balbi 2016-03-14 2044 list_for_each_entry(r, &dep->pending_list, list) {
fcd2def6639293 Thinh Nguyen 2020-03-05 2045 if (r == req) {
fcd2def6639293 Thinh Nguyen 2020-03-05 2046 dwc3_gadget_giveback(dep, req, -ECONNRESET);
fcd2def6639293 Thinh Nguyen 2020-03-05 2047 goto out;
fcd2def6639293 Thinh Nguyen 2020-03-05 2048 }
72246da40f3719 Felipe Balbi 2011-08-19 2049 }
72246da40f3719 Felipe Balbi 2011-08-19 2050
aa3342c8bb618a Felipe Balbi 2016-03-14 2051 list_for_each_entry(r, &dep->started_list, list) {
72246da40f3719 Felipe Balbi 2011-08-19 2052 if (r == req) {
a7027ca69d82ae Thinh Nguyen 2020-03-05 2053 struct dwc3_request *t;
a7027ca69d82ae Thinh Nguyen 2020-03-05 2054
72246da40f3719 Felipe Balbi 2011-08-19 2055 /* wait until it is processed */
c5353b225df9b2 Felipe Balbi 2019-02-13 2056 dwc3_stop_active_transfer(dep, true, true);
cf3113d893d442 Felipe Balbi 2017-02-17 2057
a7027ca69d82ae Thinh Nguyen 2020-03-05 2058 /*
a7027ca69d82ae Thinh Nguyen 2020-03-05 2059 * Remove any started request if the transfer is
a7027ca69d82ae Thinh Nguyen 2020-03-05 2060 * cancelled.
a7027ca69d82ae Thinh Nguyen 2020-03-05 2061 */
a7027ca69d82ae Thinh Nguyen 2020-03-05 2062 list_for_each_entry_safe(r, t, &dep->started_list, list)
04dd6e76b22889 Ray Chi 2021-03-28 2063 dwc3_gadget_move_cancelled_request(r,
04dd6e76b22889 Ray Chi 2021-03-28 2064 DWC3_REQUEST_STATUS_DEQUEUED);
cf3113d893d442 Felipe Balbi 2017-02-17 2065
a5c7682aaaa10e Thinh Nguyen 2021-01-04 2066 dep->flags &= ~DWC3_EP_WAIT_TRANSFER_COMPLETE;
a5c7682aaaa10e Thinh Nguyen 2021-01-04 2067
fcd2def6639293 Thinh Nguyen 2020-03-05 2068 goto out;
72246da40f3719 Felipe Balbi 2011-08-19 2069 }
72246da40f3719 Felipe Balbi 2011-08-19 2070 }
fcd2def6639293 Thinh Nguyen 2020-03-05 2071
04fb365c453e14 Felipe Balbi 2017-05-17 2072 dev_err(dwc->dev, "request %pK was not queued to %s\n",
72246da40f3719 Felipe Balbi 2011-08-19 2073 request, ep->name);
72246da40f3719 Felipe Balbi 2011-08-19 2074 ret = -EINVAL;
fcd2def6639293 Thinh Nguyen 2020-03-05 2075 out:
457fe4752b0f6d Wesley Cheng 2022-07-08 2076 spin_unlock(&dwc->lock);
72246da40f3719 Felipe Balbi 2011-08-19 2077
72246da40f3719 Felipe Balbi 2011-08-19 2078 return ret;
72246da40f3719 Felipe Balbi 2011-08-19 2079 }
72246da40f3719 Felipe Balbi 2011-08-19 2080
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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