linux-kernel - Re: [PATCH v2 3/3] drm: Allow simpledrm to setup its emulated FB as firmware provided

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Date:   Tue, 3 May 2022 05:40:53 +0800
From:   kernel test robot <lkp@...el.com>
To:     Javier Martinez Canillas <javierm@...hat.com>,
        linux-kernel@...r.kernel.org
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Javier Martinez Canillas <javierm@...hat.com>,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v2 3/3] drm: Allow simpledrm to setup its emulated FB as
 firmware provided

Hi Javier,

I love your patch! Yet something to improve:

[auto build test ERROR on drm/drm-next]
[also build test ERROR on shawnguo/for-next linus/master linux/master v5.18-rc5 next-20220502]
[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/intel-lab-lkp/linux/commits/Javier-Martinez-Canillas/drm-Allow-simpledrm-to-setup-its-emulated-FB-as-firmware-provided/20220502-234145
base:   git://anongit.freedesktop.org/drm/drm drm-next
config: hexagon-randconfig-r045-20220501 (https://download.01.org/0day-ci/archive/20220503/202205030522.Y2Nq4tz7-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 09325d36061e42b495d1f4c7e933e260eac260ed)
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/intel-lab-lkp/linux/commit/28ef46724e385165777a21d9f661188fa2577a1e
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Javier-Martinez-Canillas/drm-Allow-simpledrm-to-setup-its-emulated-FB-as-firmware-provided/20220502-234145
        git checkout 28ef46724e385165777a21d9f661188fa2577a1e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/gpu/drm/tiny/

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

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/tiny/simpledrm.c:904:31: error: call to undeclared function 'DRM_FB_SET_OPTION'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
           drm_fbdev_generic_setup(dev, DRM_FB_SET_OPTION(DRM_FB_FW, 1));
                                        ^
>> drivers/gpu/drm/tiny/simpledrm.c:904:49: error: use of undeclared identifier 'DRM_FB_FW'
           drm_fbdev_generic_setup(dev, DRM_FB_SET_OPTION(DRM_FB_FW, 1));
                                                          ^
   2 errors generated.


vim +/DRM_FB_SET_OPTION +904 drivers/gpu/drm/tiny/simpledrm.c

   884	
   885	/*
   886	 * Platform driver
   887	 */
   888	
   889	static int simpledrm_probe(struct platform_device *pdev)
   890	{
   891		struct simpledrm_device *sdev;
   892		struct drm_device *dev;
   893		int ret;
   894	
   895		sdev = simpledrm_device_create(&simpledrm_driver, pdev);
   896		if (IS_ERR(sdev))
   897			return PTR_ERR(sdev);
   898		dev = &sdev->dev;
   899	
   900		ret = drm_dev_register(dev, 0);
   901		if (ret)
   902			return ret;
   903	
 > 904		drm_fbdev_generic_setup(dev, DRM_FB_SET_OPTION(DRM_FB_FW, 1));
   905	
   906		return 0;
   907	}
   908	

-- 
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https://01.org/lkp