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SubjectRe: [PATCH v2 09/17] x86/hyperv: provide a bunch of helper functions
On Fri, Nov 13, 2020 at 05:13:44PM +0100, Vitaly Kuznetsov wrote:
> Wei Liu <wei.liu@kernel.org> writes:
>
> > On Thu, Nov 12, 2020 at 04:57:46PM +0100, Vitaly Kuznetsov wrote:
> >> Wei Liu <wei.liu@kernel.org> writes:
> > [...]
> >> > diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
> >> > index 67f5d35a73d3..4e590a167160 100644
> >> > --- a/arch/x86/include/asm/mshyperv.h
> >> > +++ b/arch/x86/include/asm/mshyperv.h
> >> > @@ -80,6 +80,10 @@ extern void __percpu **hyperv_pcpu_output_arg;
> >> >
> >> > extern u64 hv_current_partition_id;
> >> >
> >> > +int hv_call_deposit_pages(int node, u64 partition_id, u32 num_pages);
> >> > +int hv_call_add_logical_proc(int node, u32 lp_index, u32 acpi_id);
> >> > +int hv_call_create_vp(int node, u64 partition_id, u32 vp_index, u32 flags);
> >>
> >> You seem to be only doing EXPORT_SYMBOL_GPL() for
> >> hv_call_deposit_pages() and hv_call_create_vp() but not for
> >> hv_call_add_logical_proc() - is this intended? Also, I don't see
> >> hv_call_create_vp()/hv_call_add_logical_proc() usage outside of
> >> arch/x86/kernel/cpu/mshyperv.c so maybe we don't need to export them at all?
> >>
> >
> > hv_call_deposit_pages and hv_call_create_vp will be needed by /dev/mshv,
> > which can be built as a module.
> >
>
> I'd suggest to move EXPORT_SYMBOL_GPL() to the series adding '/dev/mshv'
> then. Dangling exported symbols with no users tend to be removed. No
> strong opinion, just a suggestion.

Sure. This is now done in my v3.

Wei.

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