From: Tyler Hicks <tyhicks@linux.microsoft.com>
Date: Thu, 9 Jul 2020 06:19:10 +0000 (-0500)
Subject: ima: Use the common function to detect LSM conditionals in a rule
X-Git-Tag: v5.9-rc1~124^2~4^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=592b24cbdc12e52bdb5937c0697df9febf41f8d9;p=thirdparty%2Fkernel%2Flinux.git

ima: Use the common function to detect LSM conditionals in a rule

Make broader use of ima_rule_contains_lsm_cond() to check if a given
rule contains an LSM conditional. This is a code cleanup and has no
user-facing change.

Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
---

diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index c679144af042e..dcd1aaac4ff0a 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -360,17 +360,10 @@ static bool ima_rule_contains_lsm_cond(struct ima_rule_entry *entry)
 static void ima_lsm_update_rules(void)
 {
 	struct ima_rule_entry *entry, *e;
-	int i, result, needs_update;
+	int result;
 
 	list_for_each_entry_safe(entry, e, &ima_policy_rules, list) {
-		needs_update = 0;
-		for (i = 0; i < MAX_LSM_RULES; i++) {
-			if (entry->lsm[i].args_p) {
-				needs_update = 1;
-				break;
-			}
-		}
-		if (!needs_update)
+		if (!ima_rule_contains_lsm_cond(entry))
 			continue;
 
 		result = ima_lsm_update_rule(entry);