From patchwork Sun Aug 13 02:15:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nayna Jain X-Patchwork-Id: 13351980 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 11984C41513 for ; Sun, 13 Aug 2023 02:16:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229458AbjHMCQE (ORCPT ); Sat, 12 Aug 2023 22:16:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60920 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230203AbjHMCQA (ORCPT ); Sat, 12 Aug 2023 22:16:00 -0400 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9E54AD7; Sat, 12 Aug 2023 19:16:03 -0700 (PDT) Received: from pps.filterd (m0360083.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37D1vaP5031051; Sun, 13 Aug 2023 02:15:54 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=Nnxewv6U97hNjNYX0MRQiDDB3SbFX7x+Nny4wJAbb1nd4Kczn60JywIRdJTdlcUqhayS Y9GywYiSxjfzjgWHnAVN5jGv5cLKlmcsBAH7n3pL9yMn2T1ote2S8JJD5Yniueg4Nh6I kraFbxn39SYUemlW3uRxS5/GO2LAFNsK/yR4A91MCCSWP50OTtGmbJw3UN3s83pljhyG h6xFRb+R/PdePtbC/f6FrIFL0F8SuKCLn0aZssiz+hSOK8hobQAdqhmLzkeCkv4VEi/t R6GWS8CbXHmk+l9XEnfcu3k8tPmukPkqMC9jVfpyYHuPCNxY7x5yeUoxRydyPTcN6lKq 6Q== Received: from ppma11.dal12v.mail.ibm.com (db.9e.1632.ip4.static.sl-reverse.com [50.22.158.219]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3senyjgaq1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 13 Aug 2023 02:15:53 +0000 Received: from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1]) by ppma11.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 37D11mDl023275; Sun, 13 Aug 2023 02:15:53 GMT Received: from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225]) by ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 3se2wpffdu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 13 Aug 2023 02:15:52 +0000 Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 37D2Fl1U11272716 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 13 Aug 2023 02:15:47 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6EE7420040; Sun, 13 Aug 2023 02:15:47 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 45B4F20043; Sun, 13 Aug 2023 02:15:45 +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; Sun, 13 Aug 2023 02:15:44 +0000 (GMT) From: Nayna Jain To: linux-integrity@vger.kernel.org Cc: Mimi Zohar , Jarkko Sakkinen , Eric Snowberg , Paul Moore , linux-security-module@vger.kernel.org, linuxppc-dev , linux-kernel@vger.kernel.org, Nayna Jain Subject: [PATCH v3 3/6] integrity: remove global variable from machine_keyring.c Date: Sat, 12 Aug 2023 22:15:28 -0400 Message-Id: <20230813021531.1382815-4-nayna@linux.ibm.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20230813021531.1382815-1-nayna@linux.ibm.com> References: <20230813021531.1382815-1-nayna@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: O_m3GKHuCti4qe_9VJP7CuUqJmeWkA1c X-Proofpoint-GUID: O_m3GKHuCti4qe_9VJP7CuUqJmeWkA1c 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=2023-08-12_27,2023-08-10_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 phishscore=0 malwarescore=0 mlxlogscore=999 spamscore=0 lowpriorityscore=0 mlxscore=0 bulkscore=0 adultscore=0 impostorscore=0 clxscore=1015 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308130016 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 --- 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;