linux-kernel - [PATCH] smack: Fix gcc warning from unused smack_syslog

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Message-ID: <1427133797-7333-1-git-send-email-paul.gortmaker@windriver.com>
Date:	Mon, 23 Mar 2015 14:03:17 -0400
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	Casey Schaufler <casey@...aufler-ca.com>,
	James Morris <james.l.morris@...cle.com>,
	"Serge E. Hallyn" <serge@...lyn.com>
CC:	<linux-security-module@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [PATCH] smack: Fix gcc warning from unused smack_syslog_lock mutex in smackfs.c

In commit 00f84f3f2e9d088f06722f4351d67f5f577abe22 ("Smack: Make the
syslog control configurable") this mutex was added, but the rest of
the final commit never actually made use of it, resulting in:

 In file included from include/linux/mutex.h:29:0,
                  from include/linux/notifier.h:13,
                  from include/linux/memory_hotplug.h:6,
                  from include/linux/mmzone.h:821,
                  from include/linux/gfp.h:5,
                  from include/linux/slab.h:14,
                  from include/linux/security.h:27,
                  from security/smack/smackfs.c:21:
 security/smack/smackfs.c:63:21: warning: ‘smack_syslog_lock’ defined but not used [-Wunused-variable]
  static DEFINE_MUTEX(smack_syslog_lock);
                      ^

A git grep shows no other instances/references to smack_syslog_lock.
Delete it, assuming that the mutex addition was just a leftover from
an earlier work in progress version of the change.

Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 security/smack/smackfs.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index bce4e8f1b267..558a46d76129 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -61,7 +61,6 @@ enum smk_inos {
  */
 static DEFINE_MUTEX(smack_cipso_lock);
 static DEFINE_MUTEX(smack_ambient_lock);
-static DEFINE_MUTEX(smack_syslog_lock);
 static DEFINE_MUTEX(smk_netlbladdr_lock);
 
 /*
-- 
2.2.1

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