linux-kernel - [PATCH] x86 acpi/irq: Define gsi_end when X86_IO

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Date:	Wed, 05 May 2010 13:22:25 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Ingo Molnar <mingo@...e.hu>
Cc:	mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org,
	tglx@...utronix.de, Yinghai Lu <yinghai@...nel.org>,
	linux-tip-commits@...r.kernel.org
Subject: [PATCH] x86 acpi/irq:  Define gsi_end when X86_IO_APIC is undefined


Oops.  My recent changes introducing a global gsi_end variable failed
to take into account the case of using acpi on a system not built to
support IO_APICs, causing the build to fail.  Define gsi_end to 15 when
CONFIG_X86_IO_APIC is not set to avoid compile errors.

Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>
---
 arch/x86/include/asm/io_apic.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 9da192a..63cb409 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -197,6 +197,7 @@ static const int timer_through_8259 = 0;
 static inline void ioapic_init_mappings(void)	{ }
 static inline void ioapic_insert_resources(void) { }
 static inline void probe_nr_irqs_gsi(void)	{ }
+#define gsi_end (NR_IRQS_LEGACY - 1)
 static inline int mp_find_ioapic(u32 gsi) { return 0; }
 
 struct io_apic_irq_attr;
-- 
1.6.5.2.143.g8cc62

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