Re: [PATCH v2] Add new `export-symbols` node

[Luca Ceresoli <luca.ceresoli@bootlin.com>]

Hello Ayush,

On Sun, 23 Mar 2025 18:37:27 +0530
Ayush Singh <ayush@beagleboard.org> wrote:

> `export-symbols` is designed to be a local replacement of global
> `__symbols__` allowing nodes to define aliases to nodes in a tree, which
> will take precedence over the aliases defined in the global `__symbols__`.
> 
> Having a way to allow node local aliases helps in usecases such as
> connectors and addon-boards, by allowing decoupling of
> overlays/devicetree nodes of addon-board from the base connector.
> 
> Reviewed-by: Herve Codina <herve.codina@bootlin.com>
> Signed-off-by: Ayush Singh <ayush@beagleboard.org>

Thank you for the very detailed explanation.

There has been a lot of discussion and brainstorming about this topic,
for various use cases, and various alternatives proposed (as in the
"Alternatives" section). I think all known options have been explored,
and this is the best one definitely. To me it is very important that it
avoids polluting the whole DT namespace as __symbols__ does, and some
implementations are already public so it is proven to work in the
practice.

Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

-- 
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com