linux-kernel - [PATCH] ocfs2: Fix a GCC compiled warning.

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Message-ID: <1536938148-32110-1-git-send-email-zhongjiang@huawei.com>
Date:   Fri, 14 Sep 2018 23:15:48 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <mark@...heh.com>, <jlbec@...lplan.org>,
        <akpm@...ux-foundation.org>
CC:     <ocfs2-devel@....oracle.com>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] ocfs2: Fix a GCC compiled warning.

Fix the following compile warning:

fs/ocfs2/dlmglue.c:99:30: warning: lockdep_keys defined but not used [-Wunused-variable]
 static struct lock_class_key lockdep_keys[OCFS2_NUM_LOCK_TYPES];

Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 fs/ocfs2/dlmglue.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 040ddb6..7c83582 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -96,7 +96,9 @@ struct ocfs2_unblock_ctl {
 };
 
 /* Lockdep class keys */
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
 static struct lock_class_key lockdep_keys[OCFS2_NUM_LOCK_TYPES];
+#endif
 
 static int ocfs2_check_meta_downconvert(struct ocfs2_lock_res *lockres,
 					int new_level);
-- 
1.7.12.4