Re: [PATCH v2 00/20] pinctrl: Use scope based of_node_put() cleanups

[Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>]

Hi Peng,

On Sat, May 4, 2024 at 3:12 PM Peng Fan (OSS) <peng.fan@xxxxxxxxxxx> wrote:
> Use scope based of_node_put() to simplify code. It reduces the chance
> of forgetting of_node_put(), and also simplifies error handling path.
> I not able to test the changes on all the hardwares, so driver owners,
> please help review when you have time.
>
> This patchset was inspired from Dan's comments on pinctrl-scmi-imx.c,
> thanks.
>
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>

Andy's question about code generation on a related patch made me
wonder, too.

On arm32, a conversion to for_each_child_of_node_scoped() seems to
cost ca. 48 bytes of additional code, regardless of whether there were
explicit cleanups before or not.

I checked "pinctrl: renesas: Use scope based of_node_put() cleanups",
and all but the conversions in *_dt_node_to_map() cost 48 bytes each.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds