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From ea81dc20148025d25305582164e614754880606c Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Thu, 21 Nov 2013 13:57:33 -0500
Subject: [PATCH 21/54] smack: call WARN_ONCE() instead of calling
audit_log_start()
Remove the call to audit_log() (which call audit_log_start()) and deal with
the errors in the caller, logging only once if the condition is met. Calling
audit_log_start() in this location makes buffer allocation and locking more
complicated in the calling tree (audit_filter_user()).
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
security/smack/smack_lsm.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index d814e35..14f52be 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -3616,9 +3616,8 @@ static int smack_audit_rule_match(u32 secid, u32 field, u32 op, void *vrule,
struct smack_known *skp;
char *rule = vrule;
- if (!rule) {
- audit_log(actx, GFP_ATOMIC, AUDIT_SELINUX_ERR,
- "Smack: missing rule\n");
+ if (unlikely(!rule)) {
+ WARN_ONCE(1, "Smack: missing rule\n");
return -ENOENT;
}
--
2.1.4
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