linux-kernel - [PATCH 5/5] x86: build fix for "x86: fix C1E && nx6325 stability problem"

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Date:	Thu, 10 Jul 2008 18:58:26 +0200
From:	Robert Richter <robert.richter@....com>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>
CC:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>
Subject: [PATCH 5/5] x86: build fix for "x86: fix C1E && nx6325 stability problem"

From: Ingo Molnar <mingo@...e.hu>

fix:

 arch/x86/kernel/built-in.o: In function `dmi_ignore_irq0_timer_override':
 boot.c:(.init.text+0x3ea4): undefined reference to `force_mask_ioapic_irq_2'

Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 include/asm-x86/genapic_32.h |    4 ++++
 include/asm-x86/genapic_64.h |    4 ++++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/include/asm-x86/genapic_32.h b/include/asm-x86/genapic_32.h
index 8d4c8bd..33a73f5 100644
--- a/include/asm-x86/genapic_32.h
+++ b/include/asm-x86/genapic_32.h
@@ -119,6 +119,10 @@ enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC};
 #define is_uv_system()			0
 #define uv_wakeup_secondary(a, b)	1
 
+#ifdef CONFIG_X86_IO_APIC
 extern void force_mask_ioapic_irq_2(void);
+#else
+static inline void force_mask_ioapic_irq_2(void) { }
+#endif
 
 #endif
diff --git a/include/asm-x86/genapic_64.h b/include/asm-x86/genapic_64.h
index 082ad02..647e4e5 100644
--- a/include/asm-x86/genapic_64.h
+++ b/include/asm-x86/genapic_64.h
@@ -46,6 +46,10 @@ extern int uv_wakeup_secondary(int phys_apicid, unsigned int start_rip);
 
 extern void setup_apic_routing(void);
 
+#ifdef CONFIG_X86_IO_APIC
 extern void force_mask_ioapic_irq_2(void);
+#else
+static inline void force_mask_ioapic_irq_2(void) { }
+#endif
 
 #endif
-- 
1.5.5.4


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