linux-kernel - [PATCH] xen/control: protect functions with CONFIG_HIBERNATE

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Message-Id: <1373898275-15765-1-git-send-email-julien.grall@linaro.org>
Date:	Mon, 15 Jul 2013 15:24:35 +0100
From:	Julien Grall <julien.grall@...aro.org>
To:	stefano.stabellini@...citrix.com, konrad.wilk@...cle.com
Cc:	ian.campbell@...rix.com, patches@...aro.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	xen-devel@...ts.xen.org, Julien Grall <julien.grall@...aro.org>
Subject: [PATCH] xen/control: protect functions with CONFIG_HIBERNATE_CALLBACKS to avoid warning

If CONFIG_HIBERNATE_CALLBACKS is not set gcc will issue warnings:
drivers/xen/manage.c:46:13: warning: 'xen_hvm_post_suspend' defined but not used [-Wunused-function]
drivers/xen/manage.c:52:13: warning: 'xen_pre_suspend' defined but not used [-Wunused-function]
drivers/xen/manage.c:59:13: warning: 'xen_post_suspend' defined but not used [-Wunused-function]

Signed-off-by: Julien Grall <julien.grall@...aro.org>
---
 drivers/xen/manage.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index 412b96c..7680276 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -36,6 +36,7 @@ enum shutdown_state {
 /* Ignore multiple shutdown requests. */
 static enum shutdown_state shutting_down = SHUTDOWN_INVALID;
 
+#ifdef CONFIG_HIBERNATE_CALLBACKS
 struct suspend_info {
 	int cancelled;
 	unsigned long arg; /* extra hypercall argument */
@@ -63,7 +64,6 @@ static void xen_post_suspend(int cancelled)
 	xen_mm_unpin_all();
 }
 
-#ifdef CONFIG_HIBERNATE_CALLBACKS
 static int xen_suspend(void *data)
 {
 	struct suspend_info *si = data;
-- 
1.7.10.4

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