Re: [PATCH 11/11] drm: remove unused and redundant callbacks

From: kbuild test robot <lkp@intel.com>
To: Peter Rosin <peda@axentia.se>
Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org,
	"Peter Rosin" <peda@axentia.se>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Christian König" <christian.koenig@amd.com>,
	"David Airlie" <airlied@linux.ie>,
	"Dave Airlie" <airlied@redhat.com>,
	"Gerd Hoffmann" <kraxel@redhat.com>,
	"Daniel Vetter" <daniel.vetter@intel.com>,
	"Jani Nikula" <jani.nikula@linux.intel.com>,
	"Sean Paul" <seanpaul@chromium.org>,
	"Patrik Jakobsson" <patrik.r.jakobsson@gmail.com>,
	"Ben Skeggs" <bskeggs@redhat.com>,
	"Yannick Fertre" <yannick.fertre@st.com>,
	"Philippe Cornu" <philippe.cornu@st.com>,
	"Benjamin Gaignard" <benjamin.gaignard@linaro.org>,
	"Vincent Abriou" <vincent.abriou@st.com>,
	amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	virtualization@lists.linux-foundation.org,
	intel-gfx@lists.freedesktop.org, nouveau@lists.freedesktop.org,
	"Boris Brezillon" <boris.brezillon@free-electrons.com>
Subject: Re: [PATCH 11/11] drm: remove unused and redundant callbacks
Date: Thu, 22 Jun 2017 00:34:36 +0800	[thread overview]
Message-ID: <201706220036.6WxRju5X%fengguang.wu@intel.com> (raw)
In-Reply-To: <1497986735-14418-12-git-send-email-peda@axentia.se>

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Hi Peter,

[auto build test ERROR on drm/drm-next]
[also build test ERROR on next-20170621]
[cannot apply to v4.12-rc6]
[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/Peter-Rosin/improve-the-fb_setcmap-helper/20170621-205441
base:   git://people.freedesktop.org/~airlied/linux.git drm-next
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All errors (new ones prefixed by >>):

>> drivers/gpu//drm/armada/armada_fbdev.c:121:2: error: unknown field 'gamma_set' specified in initializer
     .gamma_set = armada_drm_crtc_gamma_set,
     ^
>> drivers/gpu//drm/armada/armada_fbdev.c:121:15: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     .gamma_set = armada_drm_crtc_gamma_set,
                  ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu//drm/armada/armada_fbdev.c:121:15: note: (near initialization for 'armada_fb_helper_funcs.fb_probe')
>> drivers/gpu//drm/armada/armada_fbdev.c:122:2: error: unknown field 'gamma_get' specified in initializer
     .gamma_get = armada_drm_crtc_gamma_get,
     ^
   drivers/gpu//drm/armada/armada_fbdev.c:122:15: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     .gamma_get = armada_drm_crtc_gamma_get,
                  ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu//drm/armada/armada_fbdev.c:122:15: note: (near initialization for 'armada_fb_helper_funcs.initial_config')
   cc1: some warnings being treated as errors

vim +/gamma_set +121 drivers/gpu//drm/armada/armada_fbdev.c

96f60e37 Russell King   2012-08-15  115  			ret = 1;
96f60e37 Russell King   2012-08-15  116  	}
96f60e37 Russell King   2012-08-15  117  	return ret;
96f60e37 Russell King   2012-08-15  118  }
96f60e37 Russell King   2012-08-15  119  
3a493879 Thierry Reding 2014-06-27  120  static const struct drm_fb_helper_funcs armada_fb_helper_funcs = {
96f60e37 Russell King   2012-08-15 @121  	.gamma_set	= armada_drm_crtc_gamma_set,
96f60e37 Russell King   2012-08-15 @122  	.gamma_get	= armada_drm_crtc_gamma_get,
96f60e37 Russell King   2012-08-15  123  	.fb_probe	= armada_fb_probe,
96f60e37 Russell King   2012-08-15  124  };
96f60e37 Russell King   2012-08-15  125  

:::::: The code at line 121 was first introduced by commit
:::::: 96f60e37dc66091bde8d5de136ff6fda09f2d799 DRM: Armada: Add Armada DRM driver

:::::: TO: Russell King <rmk+kernel@arm.linux.org.uk>
:::::: CC: Russell King <rmk+kernel@arm.linux.org.uk>

---
0-DAY kernel test infrastructure                Open Source Technology Center
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