From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D4207C87FCF for ; Sat, 26 Jul 2025 11:21:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E4E1110E26A; Sat, 26 Jul 2025 11:21:35 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="XIWGTu60"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9F44910E045; Sat, 26 Jul 2025 11:21:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1753528895; x=1785064895; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=LUZE3bBwLHBN+StURfn0O/MoSYAuV5/vlhxfqbWfR9k=; b=XIWGTu60PgfFluJQIrzr9jkvPdoNSo+SeZQVVT/gQxKLkJu2v9jAhNEd JK/bQvTpT9dP+K/JdAjE2kxHGoZKcW1AJmr+bji3brKXZhRUKFWqbDt9U WYfwkJ1hJ0T+PVHdRoCNg+av059d1Ccy14oTXDWoq03hYdXolXM3cOfgo NUn8zxVZJOK3+l5KmiGPKPyOfNd3JeG6W91UX4XoXSXNbm10VXbjivm9p UIb+CFRnBu3cMTKt8KVGQj/kaYHJgDMX7SEa/67uzPo1BHa4lxjdaxMHB 4iz531Wz17seW2o1Se1UiN02jqC9a/T6NbQ8H8wnT6rCGwT6RHNHX/FqN w==; X-CSE-ConnectionGUID: by0/2wVTRt25oPQGVVgr/w== X-CSE-MsgGUID: 9yDQm881TVWQXGmVBfe3WQ== X-IronPort-AV: E=McAfee;i="6800,10657,11503"; a="55997841" X-IronPort-AV: E=Sophos;i="6.16,339,1744095600"; d="scan'208";a="55997841" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jul 2025 04:21:34 -0700 X-CSE-ConnectionGUID: Kr+G0yAFSdmC09F+O6NTDw== X-CSE-MsgGUID: XP1aSgD7SaC1xNtFJbmcNg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,339,1744095600"; d="scan'208";a="192449999" Received: from lkp-server01.sh.intel.com (HELO 9ee84586c615) ([10.239.97.150]) by orviesa002.jf.intel.com with ESMTP; 26 Jul 2025 04:21:33 -0700 Received: from kbuild by 9ee84586c615 with local (Exim 4.96) (envelope-from ) id 1ufcy2-000Lvb-0O; Sat, 26 Jul 2025 11:21:30 +0000 Date: Sat, 26 Jul 2025 19:20:40 +0800 From: kernel test robot To: Suraj Kandpal , intel-xe@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, ankit.k.nautiyal@intel.com, Suraj Kandpal Subject: Re: [PATCH 2/3] drm/i915/bios: Add function to check if edp data override is needed Message-ID: <202507261913.LoCL2yuM-lkp@intel.com> References: <20250725061548.2704697-3-suraj.kandpal@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250725061548.2704697-3-suraj.kandpal@intel.com> X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" Hi Suraj, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on linus/master v6.16-rc7 next-20250725] [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/Suraj-Kandpal/drm-i915-vbt-Add-eDP-Data-Overrride-field-in-VBT/20250725-141824 base: git://anongit.freedesktop.org/drm-intel for-linux-next patch link: https://lore.kernel.org/r/20250725061548.2704697-3-suraj.kandpal%40intel.com patch subject: [PATCH 2/3] drm/i915/bios: Add function to check if edp data override is needed config: i386-buildonly-randconfig-006-20250725 (https://download.01.org/0day-ci/archive/20250726/202507261913.LoCL2yuM-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250726/202507261913.LoCL2yuM-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/202507261913.LoCL2yuM-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/i915/display/intel_bios.c:2524:2: warning: variable 'val' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized] 2524 | default: | ^~~~~~~ drivers/gpu/drm/i915/display/intel_bios.c:2528:34: note: uninitialized use occurs here 2528 | return edp_data_override_mask & val; | ^~~ drivers/gpu/drm/i915/display/intel_bios.c:2485:9: note: initialize the variable 'val' to silence this warning 2485 | u32 val; | ^ | = 0 1 warning generated. vim +/val +2524 drivers/gpu/drm/i915/display/intel_bios.c 2482 2483 static bool parse_bdb_263_edp_data_override(const u32 edp_data_override_mask, int rate) 2484 { 2485 u32 val; 2486 2487 switch (rate) { 2488 case 2000000: 2489 val = BDB_263_VBT_EDP_LINK_RATE_20; 2490 break; 2491 case 1350000: 2492 val = BDB_263_VBT_EDP_LINK_RATE_13_5; 2493 break; 2494 case 1000000: 2495 val = BDB_263_VBT_EDP_LINK_RATE_10; 2496 break; 2497 case 810000: 2498 val = BDB_263_VBT_EDP_LINK_RATE_8_1; 2499 break; 2500 case 675000: 2501 val = BDB_263_VBT_EDP_LINK_RATE_6_75; 2502 break; 2503 case 540000: 2504 val = BDB_263_VBT_EDP_LINK_RATE_5_4; 2505 break; 2506 case 432000: 2507 val = BDB_263_VBT_EDP_LINK_RATE_4_32; 2508 break; 2509 case 324000: 2510 val = BDB_263_VBT_EDP_LINK_RATE_3_24; 2511 break; 2512 case 270000: 2513 val = BDB_263_VBT_EDP_LINK_RATE_2_7; 2514 break; 2515 case 243000: 2516 val = BDB_263_VBT_EDP_LINK_RATE_2_43; 2517 break; 2518 case 216000: 2519 val = BDB_263_VBT_EDP_LINK_RATE_2_16; 2520 break; 2521 case 162000: 2522 val = BDB_263_VBT_EDP_LINK_RATE_1_62; 2523 break; > 2524 default: 2525 break; 2526 } 2527 2528 return edp_data_override_mask & val; 2529 } 2530 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki