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Subject[tip:x86/hyperv] x86, hyperv: Fix build error due to missing <asm /apic.h> include
Commit-ID:  d68ce0177c1e51fb332369e0c99852a6d05668af
Author: David Rientjes <>
AuthorDate: Fri, 11 Oct 2013 16:07:31 -0700
Committer: H. Peter Anvin <>
CommitDate: Wed, 30 Oct 2013 15:37:47 -0700

x86, hyperv: Fix build error due to missing <asm/apic.h> include

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 <>
Acked-by: K. Y. Srinivasan <>
Signed-off-by: H. Peter Anvin <>
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
index 628ff50..9f6e9f8 100644
--- 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;

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