Re: [PATCH v3 3/7] x86/hyper-v: reenlightenment notifications support

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Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> writes:

> "Michael Kelley (EOSG)" <Michael.H.Kelley@xxxxxxxxxxxxx> writes:
>
>> On Fri, 19 Jan 2018, Thomas Gleixner wrote:
>>
>>> 
>>> You added '#include <linux/interrupt.h>' to mshyperv.h which is included in
>>> vclock_gettime.c and pulls in other stuff which fails to expand....
>>
>> Is the declaration of hyperv_reenlightenment_intr() even needed in
>> mshyperv.h?  The '#include <linux/interrupt.h>' is there for the __irq_entry
>> annotation on that declaration.   There's a declaration of the parallel (and
>> unannotated) hyperv_vector_handler(), but that looks like a fossil that
>> isn't needed either.
>>
>
> True,
>
> the only need for the declaration in mshyperv.h is to silence "warning:
> no previous prototype for ‘hyperv_reenlightenment_intr’"; I'm not sure
> if this actually needs fixing.

It seems we can get away with dropping '__visible' and '__irq_entry'
qualifiers from 'hyperv_reenlightenment_intr' declaration in mshyperv.h
while keeping them in hv_init.c for the implementation. This way we can
avoid the nasty 'no previous prototype' warning and not have to add
'#include <linux/interrupt.h>' to mshyperv.h breaking vdso.

I'm inclined to go ahead with this in v4 if nobody objects.

-- 
  Vitaly



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