Re: [PATCH v3 0/6] serial: Disable DMA and PM on kernel console

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On Mon, Feb 24, 2020 at 01:23:46PM +0100, Petr Mladek wrote:
> On Mon 2020-02-24 11:09:49, Andy Shevchenko wrote:
> > On Tue, Feb 18, 2020 at 09:58:44AM +0100, Petr Mladek wrote:
> > > On Mon 2020-02-17 13:40:10, Andy Shevchenko wrote:
> > > > This is third version to get rid of problematic DMA and PM calls in
> > > > the serial kernel console code.
> > > > 
> > > > Patches 1, 3 and 4 are preparatory ones.
> > > > 
> > > > After previous discussion Tony suggested to add a possibility to detach
> > > > and attach back kernel console from user space. It's done in the patch 2.
> > > > 
> > > > Note, it depends to recently submitted and applied patches in
> > > > the core console code [2, 3]. Petr, may you confirm that [3] is
> > > > immutable or even send Greg KH a PR?
> > > 
> > > Yes, the branch for-5.7-console-exit in printk.git is basically
> > > immutable. I do my best to prevent rebasing.
> > 
> > Thanks for confirming this!
> > 
> > Greg, thanks for applying patches 1, 3, and 4. How can we proceed from this point?
> > 
> > > > Greg, see above note before applying, thanks!
> 
> The easiest solution would be when all patches go via one tree.
> 
> Greg, would you want to take the 7 patches from
> https://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk.git/log/?h=for-5.7-console-exit
> via your tree?

I think it would be nice to send formal PR to Greg.

> I have never done such shuffles between two maintainer trees.
> Are there any preferred steps how to do so smoothly, please?

Usually it's done via immutable branch / tag that all stakeholders
(including the initiator) can pull into their -next branches.

In any case, if Greg is considering next cycle, don't forget to apply this to
your -next :-) (I think it's already there)

-- 
With Best Regards,
Andy Shevchenko





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