Re: [PATCH v3] KVM: MMU: Make the definition of 'INVALID_GPA' common.

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On Thu, Dec 15, 2022 at 06:12:05PM +0000, Sean Christopherson wrote:
> Nit, terminating punction (the period) isn't usually included in the shortlog.
> 
> On Thu, Dec 15, 2022, Yu Zhang wrote:
> > KVM already has a 'GPA_INVALID' defined as (~(gpa_t)0) in
> > kvm_types.h, and it is used by ARM and X86 xen code. We do
> > not need a specific definition of 'INVALID_GPA' for X86.
> > 
> > Instead of using the common 'GPA_INVALID' for X86, replace
> > the definition of 'GPA_INVALID' with 'INVALID_GPA', and
> > change the users of 'GPA_INVALID', so that the diff can be
> > smaller. Also because the name 'INVALID_GPA' tells the user
> > we are using an invalid GPA, while the name 'GPA_INVALID'
> > is emphasizing the GPA is an invalid one.
> > 
> > Also, add definition of 'INVALID_GFN' because it is more
> > proper than 'INVALID_GPA' for GFN variables.
> 
> This should be a separate commit.  Yes, it's trivial and a nop, but there's no
> reason to surprise readers/blamers that assumed the shortlog tells the whole
> story.  E.g. add and use INVALID_GFN where appropriate in patch 1, then switch
> to INVALID_GPA in patch 2.  Then you can also add a "Suggested-by: David ..." for
> patch 1.

Good point! Thanks! :)

B.R.
Yu



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