[PATCH] Remove "unused variable" warning in arch/x86/xen/setup.c on UP systems.

From: Manish Katiyar
Date: Sat May 17 2008 - 00:11:23 EST

On UP systems cpu_data is defined as boot_cpu_data, due to which we
get the below error while compiling xen.

CC arch/x86/xen/setup.o
arch/x86/xen/setup.c: In function 'xen_enable_sysenter':
arch/x86/xen/setup.c:74: warning: unused variable 'cpu'

The below patch defines the variable only when SMP is defined.

Signed-off-by : Manish Katiyar <mkatiyar@xxxxxxxxx>

diff -Nur a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
--- a/arch/x86/xen/setup.c 2008-04-26 20:36:15.000000000 +0530
+++ b/arch/x86/xen/setup.c 2008-05-17 09:30:12.000000000 +0530
@@ -71,7 +71,9 @@

void xen_enable_sysenter(void)
+#ifdef CONFIG_SMP
int cpu = smp_processor_id();
extern void xen_sysenter_target(void);
/* Mask events on entry, even though they get enabled immediately */
static struct callback_register sysenter = {

Thanks & Regards,
Manish Katiyar ( http://mkatiyar.googlepages.com )
3rd Floor, Fair Winds Block
EGL Software Park
Off Intermediate Ring Road
Bangalore 560071, India
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