linux-kernel - [PATCH -tip] trace,x86: Add config option checking to definitions of mce handlers

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Date:	Sat, 22 Jun 2013 07:33:30 -0400
From:	Seiji Aguchi <seiji.aguchi@....com>
To:	x86@...nel.org, linux-kernel@...r.kernel.org, hpa@...or.com
CC:	mingo@...e.hu, tglx@...utronix.de, rostedt@...dmis.org
Subject: [PATCH -tip] trace,x86: Add config option checking to definitions
 of mce handlers

In case CONFIG_X86_MCE_THRESHOLD and CONFIG_X86_THERMAL_VECTOR are disabled,
kernel build fails as follows.

   arch/x86/built-in.o: In function `trace_threshold_interrupt':
   (.entry.text+0x122b): undefined reference to `smp_trace_threshold_interrupt'
   arch/x86/built-in.o: In function `trace_thermal_interrupt':
   (.entry.text+0x132b): undefined reference to `smp_trace_thermal_interrupt'

In this case, trace_threshold_interrupt/trace_thermal_interrupt are not needed
to define.
So, add config option checking to their definitions in entry_64.S.

Signed-off-by: Seiji Aguchi <seiji.aguchi@....com>
---
 arch/x86/kernel/entry_64.S |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 11eef43..53d6398 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1188,10 +1188,15 @@ apicinterrupt3 POSTED_INTR_VECTOR \
 	kvm_posted_intr_ipi smp_kvm_posted_intr_ipi
 #endif
 
+#ifdef CONFIG_X86_MCE_THRESHOLD
 apicinterrupt THRESHOLD_APIC_VECTOR \
 	threshold_interrupt smp_threshold_interrupt
+#endif
+
+#ifdef CONFIG_X86_THERMAL_VECTOR
 apicinterrupt THERMAL_APIC_VECTOR \
 	thermal_interrupt smp_thermal_interrupt
+#endif
 
 #ifdef CONFIG_SMP
 apicinterrupt CALL_FUNCTION_SINGLE_VECTOR \
-- 
1.7.1

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