RE: linux-next: manual merge of the char-misc tree with the char-misc.current tree

From: Dexuan Cui
Date: Mon Dec 10 2018 - 13:52:26 EST


> From: Greg KH <greg@xxxxxxxxx>
> Sent: Monday, December 10, 2018 1:47 AM
> On Tue, Dec 04, 2018 at 08:46:41AM +0000, Dexuan Cui wrote:
> > > From: Greg KH <greg@xxxxxxxxx>
> > > Sent: Monday, December 3, 2018 11:43 PM
> > > On Tue, Dec 04, 2018 at 03:35:13PM +1100, Stephen Rothwell wrote:
> > > > Hi all,
> > > >
> > > > Today's linux-next merge of the char-misc tree got a conflict in:
> > > >
> > > > drivers/hv/channel_mgmt.c
> > > >
> > > > between commit:
> > > >
> > > > 37c2578c0c40 ("Drivers: hv: vmbus: Offload the handling of channels
> to
> > > two workqueues")
> > > >
> > > > from the char-misc.current tree and commit:
> > > >
> > > > 4d3c5c69191f ("Drivers: hv: vmbus: Remove the useless API
> > > vmbus_get_outgoing_channel()")
> > > >
> > > > from the char-misc tree.
> > > >
> > > > I fixed it up (I used the former version where they conflicted) and can
> > > > carry the fix as necessary. This is now fixed as far as linux-next is
> > Hi Stephen,
> > Thank you! I can confirm your rebase for next-20181204 is correct:
> > 37c2578c0c40 ("Drivers: hv: vmbus: Offload the handling of channels to two
> workqueues")
> >
> > > > concerned, but any non trivial conflicts should be mentioned to your
> > > > upstream maintainer when your tree is submitted for merging. You may
> > > > also want to consider cooperating with the maintainer of the conflicting
> > > > tree to minimise any particularly complex conflicts.
> > >
> > > Yeah, this is a mess, I'll wait for the hyper-v developers to send me a
> > > fixup patch for handling this merge issue, as they know it is happening
> > > :(
> > >
> > > greg k-h
> >
> > Since Stephen has fixed the merge issue correctly, I guess I may not need to
> send a fixup
> > patch for linux-next.git. If I didn't get it right, please let me know which
> tree/branch I
> > should work on to send a fixup patch.
> >
> > It looks the conflict here happened because the two related patches, which
> modify
> > the same functions, went into different branches of char-misc.git. I didn't
> realize this
> > could happen... Sorry. The lesson I learnt is that I should not submit an urgent
> fix
> > with an unimportant clean-up patch at the same time, when they can cause a
> conflict.
>
> I have done the merge in my char-misc-next branch, can you verify that I
> got it correct?
>
> greg k-h

I checked the branch and everything is correct. Thanks a lot!

Thanks,
-- Dexuan