From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.115]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8B2B618EBF; Thu, 4 Jan 2024 05:44:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="VXOD+NOL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1704347084; x=1735883084; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=WCQl4HHwjWumQMxOLxbnfx18djvT1HdWFGR04jg8I2I=; b=VXOD+NOLchaL5bSifV/G/xUFmB3iXiCxpGCQhkrw/gdhz3Fp5t5Bx4fL 1tzeJ3UzKBhGei8CXhNRrRVFAaQmpDbTszZioum6611DIItn7BsnZseP8 qtfk71K0yBR4aeSd1XjTJx/xy2G4Lg6c5UVHx+bR1R6Tssb71jf3sr3l+ 9m9OpcPMlQq7sRF+304lwOisOjvCGrT6pVjiJw3h8gODBYDcl5Jd0Opyl /Re9yGS91wRHcfJdLmnl/3Yz9/9EQ9MFV0WPplai4XCmSOpn4aJUXPGt1 utInK7n8wlfxCsVl1ykXGE23RWSUdpsIWqP3H8y9uGpBw8rnWQf+uuLJr w==; X-IronPort-AV: E=McAfee;i="6600,9927,10942"; a="396854550" X-IronPort-AV: E=Sophos;i="6.04,329,1695711600"; d="scan'208";a="396854550" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jan 2024 21:44:43 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10942"; a="850665483" X-IronPort-AV: E=Sophos;i="6.04,329,1695711600"; d="scan'208";a="850665483" Received: from lkp-server02.sh.intel.com (HELO b07ab15da5fe) ([10.239.97.151]) by fmsmga004.fm.intel.com with ESMTP; 03 Jan 2024 21:44:41 -0800 Received: from kbuild by b07ab15da5fe with local (Exim 4.96) (envelope-from ) id 1rLGX1-000MwK-05; Thu, 04 Jan 2024 05:44:39 +0000 Date: Thu, 4 Jan 2024 13:44:26 +0800 From: kernel test robot To: Jani Nikula , dri-devel@lists.freedesktop.org, Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Jani Nikula Subject: Re: [PATCH v2 34/39] drm: bridge: dw_hdmi: switch to ->edid_read callback Message-ID: <202401041305.NcTmAmOJ-lkp@intel.com> References: Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Hi Jani, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.7-rc8 next-20240103] [cannot apply to drm-intel/for-linux-next] [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/Jani-Nikula/drm-bridge-add-edid_read-hook-and-drm_bridge_edid_read/20240103-181513 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/a8f71940221fb085b8767f8123f496c9b36b22cc.1704276309.git.jani.nikula%40intel.com patch subject: [PATCH v2 34/39] drm: bridge: dw_hdmi: switch to ->edid_read callback config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20240104/202401041305.NcTmAmOJ-lkp@intel.com/config) compiler: clang version 18.0.0git (https://github.com/llvm/llvm-project 7e186d366d6c7def0543acc255931f617e76dff0) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240104/202401041305.NcTmAmOJ-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202401041305.NcTmAmOJ-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/bridge/synopsys/dw-hdmi.c:2473:3: warning: variable 'edid' is uninitialized when used here [-Wuninitialized] 2473 | edid->width_cm, edid->height_cm); | ^~~~ include/linux/dev_printk.h:155:39: note: expanded from macro 'dev_dbg' 155 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/dynamic_debug.h:274:19: note: expanded from macro 'dynamic_dev_dbg' 274 | dev, fmt, ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/dynamic_debug.h:250:59: note: expanded from macro '_dynamic_func_call' 250 | _dynamic_func_call_cls(_DPRINTK_CLASS_DFLT, fmt, func, ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/dynamic_debug.h:248:65: note: expanded from macro '_dynamic_func_call_cls' 248 | __dynamic_func_call_cls(__UNIQUE_ID(ddebug), cls, fmt, func, ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/dynamic_debug.h:224:15: note: expanded from macro '__dynamic_func_call_cls' 224 | func(&id, ##__VA_ARGS__); \ | ^~~~~~~~~~~ drivers/gpu/drm/bridge/synopsys/dw-hdmi.c:2461:25: note: initialize the variable 'edid' to silence this warning 2461 | const struct edid *edid; | ^ | = NULL 1 warning generated. vim +/edid +2473 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c 9aaf880ed4ee3c drivers/staging/imx-drm/imx-hdmi.c Fabio Estevam 2013-11-29 2456 fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2457 static const struct drm_edid *dw_hdmi_edid_read(struct dw_hdmi *hdmi, ec971aaa6775cf drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Laurent Pinchart 2020-05-26 2458 struct drm_connector *connector) 9aaf880ed4ee3c drivers/staging/imx-drm/imx-hdmi.c Fabio Estevam 2013-11-29 2459 { fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2460 const struct drm_edid *drm_edid; fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2461 const struct edid *edid; 9aaf880ed4ee3c drivers/staging/imx-drm/imx-hdmi.c Fabio Estevam 2013-11-29 2462 9aaf880ed4ee3c drivers/staging/imx-drm/imx-hdmi.c Fabio Estevam 2013-11-29 2463 if (!hdmi->ddc) ec971aaa6775cf drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Laurent Pinchart 2020-05-26 2464 return NULL; 9aaf880ed4ee3c drivers/staging/imx-drm/imx-hdmi.c Fabio Estevam 2013-11-29 2465 fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2466 drm_edid = drm_edid_read_ddc(connector, hdmi->ddc); fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2467 if (!drm_edid) { ec971aaa6775cf drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Laurent Pinchart 2020-05-26 2468 dev_dbg(hdmi->dev, "failed to get edid\n"); ec971aaa6775cf drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Laurent Pinchart 2020-05-26 2469 return NULL; ec971aaa6775cf drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Laurent Pinchart 2020-05-26 2470 } ec971aaa6775cf drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Laurent Pinchart 2020-05-26 2471 9aaf880ed4ee3c drivers/staging/imx-drm/imx-hdmi.c Fabio Estevam 2013-11-29 2472 dev_dbg(hdmi->dev, "got edid: width[%d] x height[%d]\n", 9aaf880ed4ee3c drivers/staging/imx-drm/imx-hdmi.c Fabio Estevam 2013-11-29 @2473 edid->width_cm, edid->height_cm); 9aaf880ed4ee3c drivers/staging/imx-drm/imx-hdmi.c Fabio Estevam 2013-11-29 2474 fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2475 /* fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2476 * FIXME: This should use connector->display_info.is_hdmi and fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2477 * connector->display_info.has_audio from a path that has read the EDID fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2478 * and called drm_edid_connector_update(). fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2479 */ fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2480 edid = drm_edid_raw(drm_edid); fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2481 05b1342f5014b7 drivers/gpu/drm/bridge/dw_hdmi.c Russell King 2015-07-21 2482 hdmi->sink_is_hdmi = drm_detect_hdmi_monitor(edid); f709ec07e38a71 drivers/gpu/drm/bridge/dw_hdmi.c Russell King 2015-07-21 2483 hdmi->sink_has_audio = drm_detect_monitor_audio(edid); ec971aaa6775cf drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Laurent Pinchart 2020-05-26 2484 fcb55de55cf341 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Jani Nikula 2024-01-03 2485 return drm_edid; ec971aaa6775cf drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Laurent Pinchart 2020-05-26 2486 } ec971aaa6775cf drivers/gpu/drm/bridge/synopsys/dw-hdmi.c Laurent Pinchart 2020-05-26 2487 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki