linux-kernel - [PATCH 1/12] X86: fix !CONFIG

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Date:	Tue, 23 Oct 2007 18:36:33 -0400 (EDT)
From:	Jeff Garzik <jeff@...zik.org>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	akpm@...ux-foundation.org, tglx@...utronix.de
Subject: [PATCH 1/12] X86: fix !CONFIG_SMP warning in processor.c

Fix !CONFIG_SMP warning:

arch/x86/kernel/acpi/processor.c: In function ‘arch_acpi_processor_init_pdc’:
arch/x86/kernel/acpi/processor.c:65: warning: unused variable ‘cpu’

Signed-off-by: Jeff Garzik <jgarzik@...hat.com>
---
Ideally this warning should be hidden inside a wrapper or somesuch, to
camouflage the unneeded argument in !SMP case.

diff --git a/arch/x86/kernel/acpi/processor.c b/arch/x86/kernel/acpi/processor.c
index 2ed0a4c..45e262a 100644
--- a/arch/x86/kernel/acpi/processor.c
+++ b/arch/x86/kernel/acpi/processor.c
@@ -62,7 +62,9 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c)
 /* Initialize _PDC data based on the CPU vendor */
 void arch_acpi_processor_init_pdc(struct acpi_processor *pr)
 {
+#ifdef CONFIG_SMP
 	unsigned int cpu = pr->id;
+#endif
 	struct cpuinfo_x86 *c = &cpu_data(cpu);
 
 	pr->pdc = NULL;
-
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