linux-kernel - [PATCH 1/2] Xen: Fix build when !CONFIG_HOTPLUG

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Message-Id: <1220877814-4934-1-git-send-email-alex.nixon@citrix.com>
Date:	Mon,  8 Sep 2008 13:43:33 +0100
From:	Alex Nixon <alex.nixon@...rix.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Alex Nixon <alex.nixon@...rix.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: [PATCH 1/2] Xen: Fix build when !CONFIG_HOTPLUG_CPU

Signed-off-by: Alex Nixon <alex.nixon@...rix.com>
Cc: Jeremy Fitzhardinge <jeremy@...p.org>
Cc: Ingo Molnar <mingo@...e.hu>
---
 arch/x86/xen/smp.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index be5cbb2..bf51a46 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -332,6 +332,7 @@ static void xen_smp_cpus_done(unsigned int max_cpus)
 {
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
 int xen_cpu_disable(void)
 {
 	unsigned int cpu = smp_processor_id();
@@ -368,6 +369,23 @@ void xen_play_dead(void)
 	cpu_bringup();
 }
 
+#else /* !CONFIG_HOTPLUG_CPU */
+int xen_cpu_disable(void)
+{
+	return -ENOSYS;
+}
+
+void xen_cpu_die(unsigned int cpu)
+{
+	BUG();
+}
+
+void xen_play_dead(void)
+{
+	BUG();
+}
+
+#endif
 static void stop_self(void *v)
 {
 	int cpu = smp_processor_id();
-- 
1.5.4.3

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