linux-kernel - suppress warning: ‘quotatypes’ defined but not used

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Message-ID: <20100422080540.GA3286@swordfish.minsk.epam.com>
Date:	Thu, 22 Apr 2010 11:05:40 +0300
From:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:	Jan Kara <jack@...e.cz>
Cc:	Christoph Hellwig <hch@....de>, linux-kernel@...r.kernel.org
Subject: suppress warning: ‘quotatypes’ defined but not used

Hello,
There is unused (in some cases) pointer in dquot.c
fs/quota/dquot.c:135: warning: ‘quotatypes’ defined but not used

which is referenced only when 
#ifdef CONFIG_QUOTA_DEBUG or #ifdef CONFIG_PRINT_QUOTA_WARNING

My proposal is to wrap declaration in "if defined(CONFIG_QUOTA_DEBUG) || defined(CONFIG_PRINT_QUOTA_WARNING) ..."?


diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 788b580..ab0a08a 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -132,7 +132,10 @@ static __cacheline_aligned_in_smp DEFINE_SPINLOCK(dq_state_lock);
 __cacheline_aligned_in_smp DEFINE_SPINLOCK(dq_data_lock);
 EXPORT_SYMBOL(dq_data_lock);

-static char *quotatypes[] = INITQFNAMES;
+#if defined(CONFIG_QUOTA_DEBUG) || defined(CONFIG_PRINT_QUOTA_WARNING)
+	static char *quotatypes[] = INITQFNAMES;
+#endif
+
 static struct quota_format_type *quota_formats;        /* List of registered formats */
 static struct quota_module_name module_names[] = INIT_QUOTA_MODULE_NAMES;


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