linux-kernel - [PATCH 4/9] xen/tmem: Fix compile warning.

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Date:	Tue, 14 May 2013 14:09:21 -0400
From:	Konrad Rzeszutek Wilk <konrad@...nel.org>
To:	bob.liu@...cle.com, dan.magenheimer@...cle.com,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	linux-mm@...ck.org, xen-devel@...ts.xensource.com
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: [PATCH 4/9] xen/tmem: Fix compile warning.

We keep on getting:
drivers/xen/tmem.c:65:13: warning: ‘disable_frontswap_selfshrinking’ defined but not used [-Wunused-variable]

if CONFIG_FRONTSWAP=y and # CONFIG_CLEANCACHE is not set

Found by 0 day test project

Reported-by: Fengguang Wu <fengguang.wu@...el.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
---
 drivers/xen/tmem.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/xen/tmem.c b/drivers/xen/tmem.c
index c2ee188..30bf974 100644
--- a/drivers/xen/tmem.c
+++ b/drivers/xen/tmem.c
@@ -61,14 +61,12 @@ __setup("nofrontswap", no_frontswap);
 #endif
 #endif /* CONFIG_FRONTSWAP */
 
-#ifdef CONFIG_FRONTSWAP
+#ifdef CONFIG_XEN_SELFBALLOONING
 static bool disable_frontswap_selfshrinking __read_mostly;
 #ifdef CONFIG_XEN_TMEM_MODULE
 module_param(disable_frontswap_selfshrinking, bool, S_IRUGO);
-#else
-#define disable_frontswap_selfshrinking 1
 #endif
-#endif /* CONFIG_FRONTSWAP */
+#endif /* CONFIG_XEN_SELFBALLOONING */
 
 #define TMEM_CONTROL               0
 #define TMEM_NEW_POOL              1
-- 
1.7.7.6

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