linux-kernel - [PATCH] x86/paravirt: fix compile warning for !SMP builds

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Date:	Tue, 14 Oct 2008 00:59:26 +0200
From:	Simon Holm Thøgersen <odie@...aau.dk>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Jeremy Fitzhardinge <jeremy@...p.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86/paravirt: fix compile warning for !SMP builds

This fixes the following compile warning for !SMP builds:

arch/x86/kernel/paravirt-spinlocks.c:11: warning: 'default_spin_lock_flags' defined but not used

that was introduced by 63d3a75d (x86/paravirt: add spin_lock_flags lock op).

Signed-off-by: Simon Holm Thøgersen <odie@...aau.dk>
---
 arch/x86/kernel/paravirt-spinlocks.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index 0e9f198..ebcb33d 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -7,13 +7,13 @@
 
 #include <asm/paravirt.h>
 
+#ifdef CONFIG_SMP
 static void default_spin_lock_flags(struct raw_spinlock *lock, unsigned long flags)
 {
 	__raw_spin_lock(lock);
 }
 
 struct pv_lock_ops pv_lock_ops = {
-#ifdef CONFIG_SMP
 	.spin_is_locked = __ticket_spin_is_locked,
 	.spin_is_contended = __ticket_spin_is_contended,
 
@@ -21,8 +21,10 @@ struct pv_lock_ops pv_lock_ops = {
 	.spin_lock_flags = default_spin_lock_flags,
 	.spin_trylock = __ticket_spin_trylock,
 	.spin_unlock = __ticket_spin_unlock,
-#endif
 };
+#else
+struct pv_lock_ops pv_lock_ops;
+#endif
 EXPORT_SYMBOL(pv_lock_ops);
 
 void __init paravirt_use_bytelocks(void)
-- 
1.5.6.2.255.gbed62

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