Re: [PATCH v6 00/17] memory: omap-gpmc: mtd: nand: Support GPMC NAND on non-OMAP platforms

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* Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx> [160415 09:06]:
> On Fri, 15 Apr 2016 08:41:40 -0700
> Tony Lindgren <tony@xxxxxxxxxxx> wrote:
> > Well the rules are that if something agreed to be immutable, then
> > it will never get redone. And the immutable branch should be based
> > on the absolute minimal set of patches against some earlier tag,
> > usually -rc1 is a good one. This avoids other tree to need to pull
> > in a huge amount of changes from other trees just to avoid merge
> > conflicts.
> 
> How would you do it in this particular case. Say I have to provide you
> with an immutable branch, it should only contain Roger's patches, right?

Well ideally it would be just minimal NAND related changes
branch against v4.6-rc1. Then if Roger has a dependency to
that, Roger can pull it in.

Then Roger would make a branch for the GPMC changes against
your minimal NAND branch.

Then if there were non-trivial merge conflicts, I could pull
in Roger's GPMC branch as needed.

But in this case, it seems you can just merge everything via
the NAND tree and problem solved.

> But this also means this immutable branch has to be pulled into my
> nand/next branch before all other changes touching the same set of
> files, which in turn means that I'll have to rebase and push -f my
> nand/next branch (which I'd like to avoid).

Yeah let's not do rebases, there should be no need for it.

> Or should I just pull this immutable branch in my current nand/next and
> let you pull the same immutable branch in omap-soc. I mean, would this
> prevent conflicts when our branches are merged into linux-next, no
> matter the order.

Ideally just one or more branches with just minimal changes in
them against -rc1. But you may have other dependencies in
your NAND tree so that may no longer be doable :) Usually if
I merge something that may need to get merged into other
branches, I just apply them into a separate branch against -rc1
to start with, then merge that branch in.

Regards,

Tony
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