Re: [PATCH REBASED] KVM: x86: SVM: Fix one redefine issue about VMCB_AVIC_APIC_BAR_MASK

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On Thu, Apr 06, 2023, Xinghui Li wrote:
> On Wed, Apr 5, 2023 at 7:44 AM Sean Christopherson <seanjc@xxxxxxxxxx> wrote:
> >
> > On Mon, 03 Apr 2023 17:52:00 +0800, korantwork@xxxxxxxxx wrote:
> > > VMCB_AVIC_APIC_BAR_MASK is defined twice with the same value in svm.h,
> > > which is meaningless. Delete the duplicate one.
> >
> > Applied to kvm-x86 svm, thanks!
> >
> > In the future, please don't use "PATCH REBASED".  If you're sending a new
> > version of a patch that's been rebased, then the revision number needs to be
> > bumped.  The fact that the only change is that the patch was rebased isn't
> > relevant as far as versioning is concerned, it's still a new version.  The
> > cover letter and/or ignored part of the patch is where the delta between
> > versions should be captured.
> >
> > And in this case, there really was no need to send a new version, the original
> > patch still applies cleanly.  I suspect that the REBASED version was sent as a
> > form of a ping, which again is not the right way to ping a patch/series.  If you
> > want to ping, please reply to the original patch.  Unnecessarily sending new
> > versions means more patches to sort through, i.e. makes maintainers lives harder,
> > not easier.
> >
> Firstly, I'm so so SORRY to burden you in this way.
> I found the last patch can't be am directly, so I send a new patch
> with the last rebased code.

Ah, try `git am -3`, i.e. tell git to try a 3-way merge between the patch, its
base, and what you're applying on.  I'm sure there are situations where a 3-way
merge is unwanted, e.g. maybe if someone needs to be super paranoid?  But for me
personally at least, I pretty much always run am with -3.

> I used to believe that this would alleviate your burden, but
> unfortunately, it had the opposite effect.
> Again, sorry for my wrong operation.

No worries, it's not a big deal.  My lengthy response was purely to help avoid
similar mistakes in the future.

Thanks!




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