Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Nayna Jain <nayna@linux.ibm.com>
To:     linux-integrity@vger.kernel.org
Cc:     Mimi Zohar <zohar@linux.ibm.com>,
        Jarkko Sakkinen <jarkko@kernel.org>,
        Eric Snowberg <eric.snowberg@oracle.com>,
        Paul Moore <paul@paul-moore.com>,
        linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
        linux-security-module@vger.kernel.org,
        linux-kernel@vger.kernel.org, Nayna Jain <nayna@linux.ibm.com>
Subject: [PATCH 3/6] integrity: remove global variable from machine_keyring.c
Date:   Fri, 14 Jul 2023 11:34:32 -0400
Message-Id: <20230714153435.28155-4-nayna@linux.ibm.com>
In-Reply-To: <20230714153435.28155-1-nayna@linux.ibm.com>
References: <20230714153435.28155-1-nayna@linux.ibm.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

trust_mok variable is accessed within a single function locally.

Change trust_mok from global to local static variable.

Signed-off-by: Nayna Jain <nayna@linux.ibm.com>
---
 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 <linux/efi.h>
 #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;
-- 
2.31.1