linux-kernel - Re: [PATCH v8 5/5] [media] platform: Add Synopsys Designware HDMI RX Controller Driver

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Date:   Sun, 16 Jul 2017 13:23:26 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Jose Abreu <Jose.Abreu@...opsys.com>
Cc:     kbuild-all@...org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jose Abreu <Jose.Abreu@...opsys.com>,
        Carlos Palminha <CARLOS.PALMINHA@...opsys.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Sylwester Nawrocki <snawrocki@...nel.org>
Subject: Re: [PATCH v8 5/5] [media] platform: Add Synopsys Designware HDMI RX
 Controller Driver

Hi Jose,

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on v4.13-rc1 next-20170714]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Jose-Abreu/Synopsys-Designware-HDMI-Video-Capture-Controller-PHY/20170711-092521
base:   git://linuxtv.org/media_tree.git master
config: i386-allyesconfig (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/media/platform/dwc/dw-hdmi-rx.c: In function 'dw_hdmi_registered':
>> drivers/media/platform/dwc/dw-hdmi-rx.c:1452:9: error: implicit declaration of function 'v4l2_async_subnotifier_register' [-Werror=implicit-function-declaration]
     return v4l2_async_subnotifier_register(&dw_dev->sd,
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/media/platform/dwc/dw-hdmi-rx.c: In function 'dw_hdmi_unregistered':
>> drivers/media/platform/dwc/dw-hdmi-rx.c:1462:2: error: implicit declaration of function 'v4l2_async_subnotifier_unregister' [-Werror=implicit-function-declaration]
     v4l2_async_subnotifier_unregister(&dw_dev->v4l2_notifier);
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/v4l2_async_subnotifier_register +1452 drivers/media/platform/dwc/dw-hdmi-rx.c

  1436	
  1437	static int dw_hdmi_registered(struct v4l2_subdev *sd)
  1438	{
  1439		struct dw_hdmi_dev *dw_dev = to_dw_dev(sd);
  1440		int ret;
  1441	
  1442		ret = cec_register_adapter(dw_dev->cec_adap, dw_dev->dev);
  1443		if (ret) {
  1444			dev_err(dw_dev->dev, "failed to register CEC adapter\n");
  1445			cec_delete_adapter(dw_dev->cec_adap);
  1446			return ret;
  1447		}
  1448	
  1449		cec_register_cec_notifier(dw_dev->cec_adap, dw_dev->cec_notifier);
  1450		dw_dev->registered = true;
  1451	
> 1452		return v4l2_async_subnotifier_register(&dw_dev->sd,
  1453				&dw_dev->v4l2_notifier);
  1454	}
  1455	
  1456	static void dw_hdmi_unregistered(struct v4l2_subdev *sd)
  1457	{
  1458		struct dw_hdmi_dev *dw_dev = to_dw_dev(sd);
  1459	
  1460		cec_unregister_adapter(dw_dev->cec_adap);
  1461		cec_notifier_put(dw_dev->cec_notifier);
> 1462		v4l2_async_subnotifier_unregister(&dw_dev->v4l2_notifier);
  1463	}
  1464	

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