From patchwork Tue Aug 15 11:27:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nayna Jain X-Patchwork-Id: 13353730 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40D6AC001E0 for ; Tue, 15 Aug 2023 11:28:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235940AbjHOL2Z (ORCPT ); Tue, 15 Aug 2023 07:28:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60684 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236009AbjHOL2D (ORCPT ); Tue, 15 Aug 2023 07:28:03 -0400 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5A365F7; Tue, 15 Aug 2023 04:28:01 -0700 (PDT) Received: from pps.filterd (m0353722.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37FBQJZJ000900; Tue, 15 Aug 2023 11:27:46 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=M/sQfVzrC8d2QZrImPRGkYy/MfrT1TGVavwMdGxuas8=; b=mcHO+csMXBqj76q1Nh81mO4MHrwZuWlc2QTED1wqHfXTMprQJfuy6TuQ55OIFYxcVXEg fHNoPPYP1itbVdXL4xFz5nHPGOqKdsZwm+ZVsemoGK9umss6Bl0myVOde0p6lBX7nYfr Pby+kK1Kt+/2ie91sIWcp97GtPxebMmHOuLN0afwwPZZf/jJy7KaL7qM6sSAHkn22t6Y MSQfgfAUesfKaHXKPUT53SDeBz5g6UBYJg4vVpoZuvHYIc0FAhTNFerRif67SFWpvFoW u6UMF/rTXTdGJUSfvo5InRhLRh0ZHK3cG8i/6GCLDIfpA9dt6PkWxKa11dYzozCjxr/I jw== Received: from ppma12.dal12v.mail.ibm.com (dc.9e.1632.ip4.static.sl-reverse.com [50.22.158.220]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3sg82ggjcp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 15 Aug 2023 11:27:46 +0000 Received: from pps.filterd (ppma12.dal12v.mail.ibm.com [127.0.0.1]) by ppma12.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 37F9KYGO003439; Tue, 15 Aug 2023 11:27:45 GMT Received: from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228]) by ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 3semdscvju-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 15 Aug 2023 11:27:45 +0000 Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 37FBRgIs37290540 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 15 Aug 2023 11:27:42 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8B81320043; Tue, 15 Aug 2023 11:27:42 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5795620040; Tue, 15 Aug 2023 11:27:40 +0000 (GMT) Received: from li-4b5937cc-25c4-11b2-a85c-cea3a66903e4.ibm.com (unknown [9.61.3.84]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 15 Aug 2023 11:27:40 +0000 (GMT) From: Nayna Jain To: linux-integrity@vger.kernel.org Cc: Mimi Zohar , Jarkko Sakkinen , Eric Snowberg , Paul Moore , linuxppc-dev , linux-security-module@vger.kernel.org, inux-kernel@vger.kernel.org, Nayna Jain Subject: [PATCH v4 3/6] integrity: remove global variable from machine_keyring.c Date: Tue, 15 Aug 2023 07:27:19 -0400 Message-Id: <20230815112722.1591829-4-nayna@linux.ibm.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20230815112722.1591829-1-nayna@linux.ibm.com> References: <20230815112722.1591829-1-nayna@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: BRy0kpX9ZzFlKVXxqr6gzNJWumoE-Oa7 X-Proofpoint-ORIG-GUID: BRy0kpX9ZzFlKVXxqr6gzNJWumoE-Oa7 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-15_10,2023-08-15_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 mlxscore=0 impostorscore=0 malwarescore=0 lowpriorityscore=0 phishscore=0 priorityscore=1501 bulkscore=0 suspectscore=0 clxscore=1015 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308150099 Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org trust_mok variable is accessed within a single function locally. Change trust_mok from global to local static variable. Signed-off-by: Nayna Jain Reviewed-and-tested-by: Mimi Zohar Reviewed-by: Jarkko Sakkinen Tested-by: Nageswara R Sastry --- security/integrity/platform_certs/machine_keyring.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/security/integrity/platform_certs/machine_keyring.c b/security/integrity/platform_certs/machine_keyring.c index 389a6e7c9245..9482e16cb2ca 100644 --- a/security/integrity/platform_certs/machine_keyring.c +++ b/security/integrity/platform_certs/machine_keyring.c @@ -8,8 +8,6 @@ #include #include "../integrity.h" -static bool trust_mok; - static __init int machine_keyring_init(void) { int rc; @@ -65,9 +63,11 @@ static __init bool uefi_check_trust_mok_keys(void) bool __init trust_moklist(void) { static bool initialized; + static bool trust_mok; if (!initialized) { initialized = true; + trust_mok = false; if (uefi_check_trust_mok_keys()) trust_mok = true;