From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.20]) (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 744347E9 for ; Thu, 5 Oct 2023 02:47:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="cJ7zCtX6" 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 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1696474063; x=1728010063; h=date:from:to:cc:subject:message-id:mime-version; bh=W67npBy7/enmr76r9FB20rvPYcG4Qn8AQ+QirH3EJJY=; b=cJ7zCtX6xMZTrGKqQOt5TaiEX4STxz7jfdcEEdf1BmH64cyxwAegRywr yw1zFs06pnAidWzobEd7b2jl3uY71EAddYkij6yalGlc82rztqZ3n6/OV GgS6hD300kQdH6Z6WEnGFeB8AyeRLHEhkT4VAUOQ3VELrbd/hcCGpAbCj AVAMCg1qFW9t8H/HffWBm+zb+n7MFabHJHqOy2+bmP515WspJrklMhHMq tTcNQenDY+oV43HYf2tJ4vhhVuAMbeZJuvOQF5+LnW9262kbXLHyMfaWl f2ksVJZrWO0u4CzPvPZa5aUmOwPB2eVF6eQF6YBsjRGxmKVL9bdw4PgVl g==; X-IronPort-AV: E=McAfee;i="6600,9927,10853"; a="373731395" X-IronPort-AV: E=Sophos;i="6.03,201,1694761200"; d="scan'208";a="373731395" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Oct 2023 19:47:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10853"; a="701467762" X-IronPort-AV: E=Sophos;i="6.03,201,1694761200"; d="scan'208";a="701467762" Received: from lkp-server02.sh.intel.com (HELO c3b01524d57c) ([10.239.97.151]) by orsmga003.jf.intel.com with ESMTP; 04 Oct 2023 19:47:41 -0700 Received: from kbuild by c3b01524d57c with local (Exim 4.96) (envelope-from ) id 1qoEOn-000Ku3-2c; Thu, 05 Oct 2023 02:47:37 +0000 Date: Thu, 5 Oct 2023 10:47:09 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c:100 isst_if_get_tpmi_instance_count() warn: potential spectre issue 'isst_common.sst_inst' [r] (local cap) Message-ID: <202310051017.pSUcZcok-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: linux-kernel@vger.kernel.org TO: Srinivas Pandruvada CC: Hans de Goede CC: Zhang Rui tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: ba7d997a2a29ee3fa766fee912c65796e0c21903 commit: d805456c712f93ba8a012430f2a93bec133b6ff4 platform/x86: ISST: Enumerate TPMI SST and create framework date: 7 months ago :::::: branch date: 8 hours ago :::::: commit date: 7 months ago config: x86_64-randconfig-161-20231005 (https://download.01.org/0day-ci/archive/20231005/202310051017.pSUcZcok-lkp@intel.com/config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce: (https://download.01.org/0day-ci/archive/20231005/202310051017.pSUcZcok-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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202310051017.pSUcZcok-lkp@intel.com/ smatch warnings: drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c:100 isst_if_get_tpmi_instance_count() warn: potential spectre issue 'isst_common.sst_inst' [r] (local cap) drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c:104 isst_if_get_tpmi_instance_count() warn: possible spectre second half. 'sst_inst' vim +100 drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c d805456c712f93 Srinivas Pandruvada 2023-03-07 87 d805456c712f93 Srinivas Pandruvada 2023-03-07 88 static int isst_if_get_tpmi_instance_count(void __user *argp) d805456c712f93 Srinivas Pandruvada 2023-03-07 89 { d805456c712f93 Srinivas Pandruvada 2023-03-07 90 struct isst_tpmi_instance_count tpmi_inst; d805456c712f93 Srinivas Pandruvada 2023-03-07 91 struct tpmi_sst_struct *sst_inst; d805456c712f93 Srinivas Pandruvada 2023-03-07 92 int i; d805456c712f93 Srinivas Pandruvada 2023-03-07 93 d805456c712f93 Srinivas Pandruvada 2023-03-07 94 if (copy_from_user(&tpmi_inst, argp, sizeof(tpmi_inst))) d805456c712f93 Srinivas Pandruvada 2023-03-07 95 return -EFAULT; d805456c712f93 Srinivas Pandruvada 2023-03-07 96 d805456c712f93 Srinivas Pandruvada 2023-03-07 97 if (tpmi_inst.socket_id >= topology_max_packages()) d805456c712f93 Srinivas Pandruvada 2023-03-07 98 return -EINVAL; d805456c712f93 Srinivas Pandruvada 2023-03-07 99 d805456c712f93 Srinivas Pandruvada 2023-03-07 @100 tpmi_inst.count = isst_common.sst_inst[tpmi_inst.socket_id]->number_of_power_domains; d805456c712f93 Srinivas Pandruvada 2023-03-07 101 d805456c712f93 Srinivas Pandruvada 2023-03-07 102 sst_inst = isst_common.sst_inst[tpmi_inst.socket_id]; d805456c712f93 Srinivas Pandruvada 2023-03-07 103 tpmi_inst.valid_mask = 0; d805456c712f93 Srinivas Pandruvada 2023-03-07 @104 for (i = 0; i < sst_inst->number_of_power_domains; ++i) { d805456c712f93 Srinivas Pandruvada 2023-03-07 105 struct tpmi_per_power_domain_info *power_domain_info; d805456c712f93 Srinivas Pandruvada 2023-03-07 106 d805456c712f93 Srinivas Pandruvada 2023-03-07 107 power_domain_info = &sst_inst->power_domain_info[i]; d805456c712f93 Srinivas Pandruvada 2023-03-07 108 if (power_domain_info->sst_base) d805456c712f93 Srinivas Pandruvada 2023-03-07 109 tpmi_inst.valid_mask |= BIT(i); d805456c712f93 Srinivas Pandruvada 2023-03-07 110 } d805456c712f93 Srinivas Pandruvada 2023-03-07 111 d805456c712f93 Srinivas Pandruvada 2023-03-07 112 if (copy_to_user(argp, &tpmi_inst, sizeof(tpmi_inst))) d805456c712f93 Srinivas Pandruvada 2023-03-07 113 return -EFAULT; d805456c712f93 Srinivas Pandruvada 2023-03-07 114 d805456c712f93 Srinivas Pandruvada 2023-03-07 115 return 0; d805456c712f93 Srinivas Pandruvada 2023-03-07 116 } d805456c712f93 Srinivas Pandruvada 2023-03-07 117 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki