> -Original Message-
> From: KarimAllah Ahmed
> Sent: Monday, February 19, 2018 11:40 PM
> To: linux-kernel@vger.kernel.org; de...@linuxdriverproject.org;
> x...@kernel.org
> Cc: KarimAllah Ahmed ; KY Srinivasan
> ; Haiyang Zhang ; Stephen
> Hemminger ; Thomas Gleixner
> ; Ingo Molnar ; H . Peter Anvin
>
> Subject: [PATCH] X86/UAPI: Use __u64 instead of u64 in hyperv.h
>
> ... since u64 has a hidden header dependency that was not there before
> using it (i.e. it breaks our VMM build). Also, __u64 is the right way to
> expose the data type through UAPI.
>
> Fixes: 93286261 ("x86/hyperv: Reenlightenment notifications support")
> Signed-off-by: KarimAllah Ahmed
> Cc: K. Y. Srinivasan
> Cc: Haiyang Zhang
> Cc: Stephen Hemminger
> Cc: Thomas Gleixner
> Cc: Ingo Molnar
> Cc: H. Peter Anvin
> Cc: x...@kernel.org
> Cc: de...@linuxdriverproject.org
> Cc: linux-kernel@vger.kernel.org
Acked-by: K. Y. Srinivasan
> ---
> arch/x86/include/uapi/asm/hyperv.h | 18 +-
> 1 file changed, 9 insertions(+), 9 deletions(-)
>
> diff --git a/arch/x86/include/uapi/asm/hyperv.h
> b/arch/x86/include/uapi/asm/hyperv.h
> index 197c2e6..0994143 100644
> --- a/arch/x86/include/uapi/asm/hyperv.h
> +++ b/arch/x86/include/uapi/asm/hyperv.h
> @@ -241,24 +241,24 @@
> #define HV_X64_MSR_REENLIGHTENMENT_CONTROL 0x4106
>
> struct hv_reenlightenment_control {
> - u64 vector:8;
> - u64 reserved1:8;
> - u64 enabled:1;
> - u64 reserved2:15;
> - u64 target_vp:32;
> + __u64 vector:8;
> + __u64 reserved1:8;
> + __u64 enabled:1;
> + __u64 reserved2:15;
> + __u64 target_vp:32;
> };
>
> #define HV_X64_MSR_TSC_EMULATION_CONTROL 0x4107
> #define HV_X64_MSR_TSC_EMULATION_STATUS 0x4108
>
> struct hv_tsc_emulation_control {
> - u64 enabled:1;
> - u64 reserved:63;
> + __u64 enabled:1;
> + __u64 reserved:63;
> };
>
> struct hv_tsc_emulation_status {
> - u64 inprogress:1;
> - u64 reserved:63;
> + __u64 inprogress:1;
> + __u64 reserved:63;
> };
>
> #define HV_X64_MSR_HYPERCALL_ENABLE 0x0001
> --
> 2.7.4