linux-kernel - [patch x86/hyperv] x86, hyperv: Fix build error

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Message-ID: <alpine.DEB.2.02.1310111604160.31170@chino.kir.corp.google.com>
Date:	Fri, 11 Oct 2013 16:07:31 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Ingo Molnar <mingo@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
	tglx@...utronix.de, "H. Peter Anvin" <hpa@...ux.intel.com>
cc:	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Olaf Hering <olaf@...fle.de>, linux-kernel@...r.kernel.org,
	linux-tip-commits@...r.kernel.org
Subject: [patch x86/hyperv] x86, hyperv: Fix build error

9e7827b5ea4c ("x86, hyperv: Get the local APIC timer frequency from the 
hypervisor") breaks the build with some configs because apic.h isn't 
directly included:

arch/x86/kernel/cpu/mshyperv.c: In function 'ms_hyperv_init_platform':
arch/x86/kernel/cpu/mshyperv.c:90:3: error: 'lapic_timer_frequency' undeclared (first use in this function)
arch/x86/kernel/cpu/mshyperv.c:90:3: note: each undeclared identifier is reported only once for each function it appears in

Fix it by including asm/apic.h.

Signed-off-by: David Rientjes <rientjes@...gle.com>
---
 arch/x86/kernel/cpu/mshyperv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -25,6 +25,7 @@
 #include <asm/idle.h>
 #include <asm/irq_regs.h>
 #include <asm/i8259.h>
+#include <asm/apic.h>
 
 struct ms_hyperv_info ms_hyperv;
 EXPORT_SYMBOL_GPL(ms_hyperv);
--
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