RE: [PATCH] Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()

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> From: gregkh@xxxxxxxxxxxxxxxxxxx [mailto:gregkh@xxxxxxxxxxxxxxxxxxx]
> > > From: gregkh@xxxxxxxxxxxxxxxxxxx [mailto:gregkh@xxxxxxxxxxxxxxxxxxx]
> > > > > > It's interesting v4.4.44 is not impacted, but actually it needs both the 2
> > > patches:
> > > > > > i.e. this patch, and the previous one:
> > > > > > Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in
> > > > > hv_need_to_signal_on_read()")
> > > > >
> > > > > That patch does not apply to the 4.4-stable tree, which is why it was
> > > > > not included there.  If you feel it should be included, please provide a
> > > > > backport and send it to the stable@xxxxxxxxxxxxxxx mailing list.
> > > > >
> > > > > greg k-h
> > > >
> > > > Thanks! I'll do the backport after this patch goes in the mainline.
> > >
> > > Why wait?
> >
> > I thought a patch must first appear in Linus's tree, before it can be
> > back-ported to the stable tree?
> 
> Commit a389fcfd2cb5 _IS_ in Linus's tree, it was released in the 4.7-rc1
> kernel, which happened in May of 2016.
> 
> greg k-h

Sorry, it looks I didn't make it clear. :-)

v4.4.44 needs 2 patches, i.e. a389fcfd2cb5, and this patch (which is not in
Linus's tree yet).  Only backporting the first patch immediately is not enough
and is also improper IMO, because the first patch introduces a new issue,
which is being resolved by this patch. So my understanding is that I should
backport the 2 patches together.

Thanks,
-- Dexuan
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