linux-kernel - Re: [PATCH -tip] x86: apic/io

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Date:	Sat, 21 Mar 2009 23:50:53 +0530
From:	Jaswinder Singh Rajput <jaswinder@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	x86 maintainers <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -tip] x86: apic/io_apic fix compilation warning

On Sat, 2009-03-21 at 17:36 +0100, Ingo Molnar wrote:

> hm, i think it would be cleaner to remove the CONFIG_INTR_REMAP 
> define altogether and define msi_ir_chip all the time. (and make 
> sure this build fine even in the !INTR_REMAP case)
> 

Is this looks OK to you and can you please check this in your
magic .config files:

From: Jaswinder Singh Rajput <jaswinderrajput@...il.com>
Date: Sat, 21 Mar 2009 23:40:00 +0530
Subject: [PATCH] x86: apic/io_apic.c define msi_ir_chip and ir_ioapic_chip all the time

move out msi_ir_chip and ir_ioapic_chip from CONFIG_INTR_REMAP shadow

Fix:
 arch/x86/kernel/apic/io_apic.c:1431: warning: ‘msi_ir_chip’ defined but not used

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@...il.com>
---
 arch/x86/kernel/apic/io_apic.c |    9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index d882c03..1aea1c2 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1428,7 +1428,6 @@ void __setup_vector_irq(int cpu)
 
 static struct irq_chip ioapic_chip;
 static struct irq_chip ir_ioapic_chip;
-static struct irq_chip msi_ir_chip;
 
 #define IOAPIC_AUTO     -1
 #define IOAPIC_EDGE     0
@@ -2663,20 +2662,20 @@ static struct irq_chip ioapic_chip __read_mostly = {
 	.retrigger	= ioapic_retrigger_irq,
 };
 
-#ifdef CONFIG_INTR_REMAP
 static struct irq_chip ir_ioapic_chip __read_mostly = {
 	.name		= "IR-IO-APIC",
 	.startup	= startup_ioapic_irq,
 	.mask		= mask_IO_APIC_irq,
 	.unmask		= unmask_IO_APIC_irq,
+#ifdef CONFIG_INTR_REMAP
 	.ack		= ack_x2apic_edge,
 	.eoi		= ack_x2apic_level,
 #ifdef CONFIG_SMP
 	.set_affinity	= set_ir_ioapic_affinity_irq,
 #endif
+#endif
 	.retrigger	= ioapic_retrigger_irq,
 };
-#endif
 
 static inline void init_IO_APIC_traps(void)
 {
@@ -3391,18 +3390,18 @@ static struct irq_chip msi_chip = {
 	.retrigger	= ioapic_retrigger_irq,
 };
 
-#ifdef CONFIG_INTR_REMAP
 static struct irq_chip msi_ir_chip = {
 	.name		= "IR-PCI-MSI",
 	.unmask		= unmask_msi_irq,
 	.mask		= mask_msi_irq,
+#ifdef CONFIG_INTR_REMAP
 	.ack		= ack_x2apic_edge,
 #ifdef CONFIG_SMP
 	.set_affinity	= ir_set_msi_irq_affinity,
 #endif
+#endif
 	.retrigger	= ioapic_retrigger_irq,
 };
-#endif
 
 /*
  * Map the PCI dev to the corresponding remapping hardware unit
-- 
1.6.0.6



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