Re: [PATCH v12 0/4] PCI: Patch series to improve Thunderbolt enumeration

From: Bjorn Helgaas
Date: Tue Dec 17 2019 - 10:12:52 EST


On Mon, Dec 09, 2019 at 12:59:29PM +0000, Nicholas Johnson wrote:
> Hi all,
>
> Since last time:
> Reverse Christmas tree for a couple of variables
>
> Changed while to whilst (sounds more formal, and so that
> grepping for "while" only brings up code)
>
> Made sure they still apply to latest Linux v5.5-rc1
>
> Kind regards,
> Nicholas
>
> Nicholas Johnson (4):
> PCI: Consider alignment of hot-added bridges when distributing
> available resources
> PCI: In extend_bridge_window() change available to new_size
> PCI: Change extend_bridge_window() to set resource size directly
> PCI: Allow extend_bridge_window() to shrink resource if necessary

I have tentatively applied these to pci/resource for v5.6, but I need
some kind of high-level description for why we want these changes.

The commit logs describe what the code does, and that's good, but we
really need a little more of the *why* and what the user-visible
benefit is. I know some of this was in earlier postings, but it seems
to have gotten lost along the way.

Bjorn