linux-kernel - Re: [PATCH] of: Make the number of reserved memory regions configurable

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Message-ID: <6moxms5mnvjgvfxie4zoewdvq4bbmg56hmtpohdxwujdqydxqg@r2x2rvrpjh6g>
Date: Mon, 27 Oct 2025 11:02:39 +0100
From: Maxime Ripard <mripard@...nel.org>
To: Rob Herring <robh@...nel.org>
Cc: Saravana Kannan <saravanak@...gle.com>, 
	Eric Chanudet <echanude@...hat.com>, Radu Rendec <rrendec@...hat.com>, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] of: Make the number of reserved memory regions
 configurable

Hi Rob,

Thanks for your answer!

On Fri, Oct 24, 2025 at 07:57:06AM -0500, Rob Herring wrote:
> On Thu, Oct 23, 2025 at 10:35 AM Maxime Ripard <mripard@...nel.org> wrote:
> >
> > Some platforms register more reserved memory regions than the current
> > hardcoded limit of 64.
> 
> I've already NAKed a kconfig option for this before.
> 
> The limit is now 64 dynamic regions, not total. The static regions are
> unlimited. What platform needs so many regions and to abuse
> /reserved-memory like this?

I'm sorry, I totally missed both that you nacked it and that it got
fixed recently. We're still seeing the issue with 6.12, but it looks like

https://lore.kernel.org/all/20241008220624.551309-1-quic_obabatun@quicinc.com/

Is the series you were talking about?

Thanks,
Maxime

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