From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (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 2EFCE10A34 for ; Sat, 18 Nov 2023 17:02:19 +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="NE0ujYMb" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700326940; x=1731862940; h=date:from:to:cc:subject:message-id:mime-version; bh=RkKzvgMX8f4EbHDe0dqNLRFZMEsdAPGhnx4Zt3fAoIc=; b=NE0ujYMb7eiILjgpPt37jZxMgdcyIjoBWFtKaZ51syA6XihMFr0ktgN+ 22bDsW45xHImAwjli5yypLykvT/8yxBhYCdjS6bdiT+T18jDrwYmBH9L+ ZDI4PjJU7yY1eYw/VgwZKqs3To2dR8SPZWZN4f3G7YWSW9iwuNkvSjAYo +R7tG6FTQ7i6js40VuSUO6W8QmGwuFb+T8KsHNBYjV3Cl36C/e35iWB4t ZGhY0hNajw/OktUrpzLq0vfmAp7YLEme6ZkoY2qJI0o7j/D173r6FDY0J mGFAyw0F7ZFMAObi2BUCeft/4oesbatn64l3QPfSzxZDQIL1r94lxG2hd w==; X-IronPort-AV: E=McAfee;i="6600,9927,10898"; a="4538984" X-IronPort-AV: E=Sophos;i="6.04,209,1695711600"; d="scan'208";a="4538984" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Nov 2023 09:02:19 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10898"; a="769492918" X-IronPort-AV: E=Sophos;i="6.04,209,1695711600"; d="scan'208";a="769492918" Received: from lkp-server02.sh.intel.com (HELO b8de5498638e) ([10.239.97.151]) by fmsmga007.fm.intel.com with ESMTP; 18 Nov 2023 09:02:18 -0800 Received: from kbuild by b8de5498638e with local (Exim 4.96) (envelope-from ) id 1r4Ohz-00045r-3C; Sat, 18 Nov 2023 17:02:15 +0000 Date: Sun, 19 Nov 2023 01:01:58 +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: <202311190013.bjZCn2I2-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: 791c8ab095f71327899023223940dd52257a4173 commit: d805456c712f93ba8a012430f2a93bec133b6ff4 platform/x86: ISST: Enumerate TPMI SST and create framework date: 8 months ago :::::: branch date: 18 hours ago :::::: commit date: 8 months ago config: x86_64-randconfig-161-20231118 (https://download.01.org/0day-ci/archive/20231119/202311190013.bjZCn2I2-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231119/202311190013.bjZCn2I2-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/202311190013.bjZCn2I2-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