netdev - Re: [PATCH v5 2/2] bluetooth: Add MGMT Adv Monitor Device Found/Lost events

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Date:   Sun, 21 Nov 2021 04:12:03 +0800
From:   kernel test robot <lkp@...el.com>
To:     Manish Mandlik <mmandlik@...gle.com>, marcel@...tmann.org,
        luiz.dentz@...il.com
Cc:     kbuild-all@...ts.01.org,
        chromeos-bluetooth-upstreaming@...omium.org,
        linux-bluetooth@...r.kernel.org,
        Manish Mandlik <mmandlik@...gle.com>,
        Miao-chen Chou <mcchou@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v5 2/2] bluetooth: Add MGMT Adv Monitor Device Found/Lost
 events

Hi Manish,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on bluetooth-next/master]
[also build test WARNING on next-20211118]
[cannot apply to bluetooth/master v5.16-rc1]
[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]

url:    https://github.com/0day-ci/linux/commits/Manish-Mandlik/bluetooth-Handle-MSFT-Monitor-Device-Event/20211121-004127
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master
config: m68k-randconfig-r016-20211121 (attached as .config)
compiler: m68k-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/9d49f17ae7d7c8f17e51a8d1e0fece8f76cc2dd6
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Manish-Mandlik/bluetooth-Handle-MSFT-Monitor-Device-Event/20211121-004127
        git checkout 9d49f17ae7d7c8f17e51a8d1e0fece8f76cc2dd6
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> net/bluetooth/mgmt.c:9542:6: warning: no previous prototype for 'mgmt_adv_monitor_device_found' [-Wmissing-prototypes]
    9542 | void mgmt_adv_monitor_device_found(struct hci_dev *hdev,
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/mgmt_adv_monitor_device_found +9542 net/bluetooth/mgmt.c

  9541	
> 9542	void mgmt_adv_monitor_device_found(struct hci_dev *hdev,
  9543					   struct mgmt_ev_device_found *ev,
  9544					   size_t ev_size, bool discovering)
  9545	{
  9546		char buf[518];
  9547		struct mgmt_ev_adv_monitor_device_found *advmon_ev = (void *)buf;
  9548		size_t advmon_ev_size;
  9549		struct monitored_device *dev, *tmp;
  9550		bool matched = false;
  9551		bool notified = false;
  9552	
  9553		/* Make sure that the buffer is big enough */
  9554		advmon_ev_size = ev_size + (sizeof(*advmon_ev) - sizeof(*ev));
  9555		if (advmon_ev_size > sizeof(buf))
  9556			return;
  9557	
  9558		/* ADV_MONITOR_DEVICE_FOUND is similar to DEVICE_FOUND event except
  9559		 * that it also has 'monitor_handle'. Make a copy of DEVICE_FOUND and
  9560		 * store monitor_handle of the matched monitor.
  9561		 */
  9562		memcpy(&advmon_ev->addr, ev, ev_size);
  9563	
  9564		hdev->advmon_pend_notify = false;
  9565	
  9566		list_for_each_entry_safe(dev, tmp, &hdev->monitored_devices, list) {
  9567			if (!bacmp(&dev->bdaddr, &advmon_ev->addr.bdaddr)) {
  9568				matched = true;
  9569	
  9570				if (!dev->notified) {
  9571					advmon_ev->monitor_handle =
  9572							cpu_to_le16(dev->handle);
  9573	
  9574					mgmt_event(MGMT_EV_ADV_MONITOR_DEVICE_FOUND,
  9575						   hdev, advmon_ev, advmon_ev_size,
  9576						   NULL);
  9577	
  9578					notified = true;
  9579					dev->notified = true;
  9580				}
  9581			}
  9582	
  9583			if (!dev->notified)
  9584				hdev->advmon_pend_notify = true;
  9585		}
  9586	
  9587		if (!discovering &&
  9588		    ((matched && !notified) || !msft_monitor_supported(hdev))) {
  9589			/* Handle 0 indicates that we are not active scanning and this
  9590			 * is a subsequent advertisement report for an already matched
  9591			 * Advertisement Monitor or the controller offloading support
  9592			 * is not available.
  9593			 */
  9594			advmon_ev->monitor_handle = 0;
  9595	
  9596			mgmt_event(MGMT_EV_ADV_MONITOR_DEVICE_FOUND, hdev, advmon_ev,
  9597				   advmon_ev_size, NULL);
  9598		}
  9599	}
  9600	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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