linux-kernel - [PATCH] fix unused variable without softlock detection and highmem

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Date:	Mon, 23 Feb 2009 17:39:51 +0530
From:	Nikanth Karthikesan <knikanth@...e.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] fix unused variable without softlock detection and highmem

When both CONFIG_DETECT_SOFTLOCKUP and CONFIG_HIGHMEM are not defined
avoid defining the constant for one fixing the 'define but not used' warning.

Signed-off-by: Nikanth Karthikesan <knikanth@...e.de>

---

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index c5ef44f..f172d9f 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -95,12 +95,15 @@ static int sixty = 60;
 static int neg_one = -1;
 #endif
 
+#if defined(CONFIG_DETECT_SOFTLOCKUP) || defined(CONFIG_HIGHMEM)
+static int one = 1;
+#endif
+
 #if defined(CONFIG_MMU) && defined(CONFIG_FILE_LOCKING)
 static int two = 2;
 #endif
 
 static int zero;
-static int one = 1;
 static unsigned long one_ul = 1;
 static int one_hundred = 100;
 

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