Re: [PATCH] scripts: dtc: fix a false alarm for node_name_chars_strict

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On Tue, May 31, 2022 at 12:34 AM Qun-Wei Lin <qun-wei.lin@xxxxxxxxxxxx> wrote:
>
> The function check_node_name_chars_strict issues a false alarm when
> compiling an overlay dts.
>
> /fragment@0/__overlay__: Character '_' not recommended in node name
>
> This workaround will fix it by skip checking for node named __overlay__.
>
> Signed-off-by: Qun-Wei Lin <qun-wei.lin@xxxxxxxxxxxx>
> ---
>  scripts/dtc/checks.c | 5 +++++

We don't take patches for dtc. You must send them to upstream dtc and
then it will be sync'ed to the kernel tree.

>  1 file changed, 5 insertions(+)
>
> diff --git a/scripts/dtc/checks.c b/scripts/dtc/checks.c
> index 781ba1129a8e..6ef4f2cd67b9 100644
> --- a/scripts/dtc/checks.c
> +++ b/scripts/dtc/checks.c
> @@ -325,6 +325,11 @@ static void check_node_name_chars_strict(struct check *c, struct dt_info *dti,
>  {
>         int n = strspn(node->name, c->data);
>
> +       if (streq(node->name, "__overlay__")) {
> +               /* HACK: Overlay fragments are a special case */

Not a hack IMO.

However, this should be checking for any node name starting with '__'.

Also, doesn't 'fragment@0' cause a warning about missing 'reg'?



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