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Subject[PATCH v1 1/2] hyperv: Include linux/types.h to avoid build break
The commit 2ffd9e33ce4a

("x86/hyper-v: Use hypercall for remote TLB flush")

introduced a new C-file where uapi/linux/hyperv.h is included first.

This makes build failed since UAPI headers are heavily dependent to special
types of variables, e.g. __u8.

CC arch/x86/hyperv/mmu.o
In file included from include/linux/hyperv.h:28:0,
from arch/x86/hyperv/mmu.c:3:
include/uapi/linux/hyperv.h:71:2: error: unknown type name ‘__u8’
__u8 operation;

Include linux/types.h to the UAPI header like many others do.

Cc: Vitaly Kuznetsov <>
Cc: K. Y. Srinivasan <>
Cc: Haiyang Zhang <>
Cc: Stephen Hemminger <>
Signed-off-by: Andy Shevchenko <>
include/uapi/linux/hyperv.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/uapi/linux/hyperv.h b/include/uapi/linux/hyperv.h
index 7560c0aa60e3..aaf32131b556 100644
--- a/include/uapi/linux/hyperv.h
+++ b/include/uapi/linux/hyperv.h
@@ -25,6 +25,8 @@
#ifndef _UAPI_HYPERV_H
#define _UAPI_HYPERV_H

+#include <linux/types.h>
* Framework version for util services.
 \ /
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