Re: [PATCH] x86/hyperv: make vapic support x2apic mode

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On Tue, Oct 01, 2019 at 06:44:08AM +0800, kbuild test robot wrote:
> url:    https://github.com/0day-ci/linux/commits/Roman-Kagan/x86-hyperv-make-vapic-support-x2apic-mode/20191001-044238
> config: x86_64-randconfig-e004-201939 (attached as .config)
> compiler: gcc-7 (Debian 7.4.0-13) 7.4.0
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=x86_64 
> 
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> 
> All errors (new ones prefixed by >>):
> 
>    arch/x86/hyperv/hv_apic.c: In function 'hv_x2apic_read':
> >> arch/x86/hyperv/hv_apic.c:91:10: error: implicit declaration of function 'native_apic_msr_read'; did you mean 'native_apic_icr_read'? [-Werror=implicit-function-declaration]
>       return native_apic_msr_read(reg);
>              ^~~~~~~~~~~~~~~~~~~~
>              native_apic_icr_read
>    arch/x86/hyperv/hv_apic.c: In function 'hv_x2apic_write':
> >> arch/x86/hyperv/hv_apic.c:119:3: error: implicit declaration of function 'native_apic_msr_write'; did you mean 'native_apic_icr_write'? [-Werror=implicit-function-declaration]
>       native_apic_msr_write(reg, val);
>       ^~~~~~~~~~~~~~~~~~~~~
>       native_apic_icr_write
>    cc1: some warnings being treated as errors

Oops, !CONFIG_X86_X2APIC needs to be handled.  Will post v2.

Roman.



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