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 247DAC00A8F for ; Tue, 24 Oct 2023 02:47:40 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 895B410E07A; Tue, 24 Oct 2023 02:47:39 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 77CB910E07A for ; Tue, 24 Oct 2023 02:47:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1698115658; x=1729651658; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=HepMk2tBid574IdLLcJW1wWwmcdzgcidw8Vg9OpntTE=; b=JMtaY/0duITT0WUz6s6FjnWmgFR+yP3XtK0UDXj/MOy/yVw64NWibyNO A3ij94nh0HmE/S2b/7jFdgXMdau1VuaBUeUBnJMWBCsiVixGV75yw9ZyS Y0Hkc9q7DzxEYUKlTiNq1N8WksPwkTTqOO2ftdkeU8ql5S9zvvQZeU3Db 1OwY5g5PD/T+FkmuY7gSJP2F8fhp3KDR1HVYsU3jlYZCGqQACfPmuG5Rm FMR0xWa5HRHjves9Nu6vBdssy9YQZiUwv4YUhAAegLlIuVbGqxi45M1u4 g6mXWJpKQE53pOLWC75vlpcB3Hh3l/KYiJPr2y9QzPUHTJI8TuwsfCWti Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10872"; a="385869605" X-IronPort-AV: E=Sophos;i="6.03,246,1694761200"; d="scan'208";a="385869605" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Oct 2023 19:47:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10872"; a="758330680" X-IronPort-AV: E=Sophos;i="6.03,246,1694761200"; d="scan'208";a="758330680" Received: from lkp-server01.sh.intel.com (HELO 8917679a5d3e) ([10.239.97.150]) by orsmga002.jf.intel.com with ESMTP; 23 Oct 2023 19:47:36 -0700 Received: from kbuild by 8917679a5d3e with local (Exim 4.96) (envelope-from ) id 1qv7SA-0007Ur-0N; Tue, 24 Oct 2023 02:47:34 +0000 Date: Tue, 24 Oct 2023 10:47:11 +0800 From: kernel test robot To: Imre Deak , intel-gfx@lists.freedesktop.org Message-ID: <202310241055.Pz9vy06V-lkp@intel.com> References: <20231024010925.3949910-9-imre.deak@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231024010925.3949910-9-imre.deak@intel.com> Subject: Re: [Intel-gfx] [PATCH 08/29] drm/dp: Add helpers to calculate the link BW overhead X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: oe-kbuild-all@lists.linux.dev Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Hi Imre, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/Imre-Deak/drm-dp_mst-Fix-fractional-DSC-bpp-handling/20231024-091920 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip patch link: https://lore.kernel.org/r/20231024010925.3949910-9-imre.deak%40intel.com patch subject: [Intel-gfx] [PATCH 08/29] drm/dp: Add helpers to calculate the link BW overhead config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20231024/202310241055.Pz9vy06V-lkp@intel.com/config) compiler: m68k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231024/202310241055.Pz9vy06V-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/202310241055.Pz9vy06V-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/display/drm_dp_helper.c:4002: warning: Function parameter or member 'is_uhbr' not described in 'drm_dp_bw_channel_coding_efficiency' >> drivers/gpu/drm/display/drm_dp_helper.c:4002: warning: expecting prototype for Returns the efficiency in the 100%/coding(). Prototype was for drm_dp_bw_channel_coding_efficiency() instead vim +4002 drivers/gpu/drm/display/drm_dp_helper.c 3996 3997 /** 3998 * Returns the efficiency in the 100%/coding-overhead% ratio in 3999 * 1ppm units. 4000 */ 4001 int drm_dp_bw_channel_coding_efficiency(bool is_uhbr) > 4002 { 4003 if (is_uhbr) 4004 return 967100; 4005 else 4006 /* 4007 * Note that on 8b/10b MST the efficiency is only 4008 * 78.75% due to the 1 out of 64 MTPH packet overhead, 4009 * not accounted for here. 4010 */ 4011 return 800000; 4012 } 4013 EXPORT_SYMBOL(drm_dp_bw_channel_coding_efficiency); 4014 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki