[PATCH v2 17/17] Documentation: migration-2025.11.0: List changes to CONFIG_CRYPTO_PUBLIC_KEYS

[Sascha Hauer]

On Tue, Oct 28, 2025 at 07:03:22PM +0100, Jonas Rebmann wrote:
> As part of the introduction of TLV signature in public key keyrings,
> there is a new interpreter for CONFIG_CRYPTO_PUBLIC_KEYS in
> scripts/keytoc.c. All users should update to the new syntax and are
> presented with a warning. Users with invalid characters in the legacy
> syntax must change the fit-hint and will be presented with an error.
> 
> Signed-off-by: Jonas Rebmann <jre at pengutronix.de>
> ---
>  Documentation/migration-guides/migration-2025.11.0.rst | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/Documentation/migration-guides/migration-2025.11.0.rst b/Documentation/migration-guides/migration-2025.11.0.rst
> index a9c7abb66e..bd7fcf8126 100644
> --- a/Documentation/migration-guides/migration-2025.11.0.rst
> +++ b/Documentation/migration-guides/migration-2025.11.0.rst

migration-2025.12.0.rst please.

Sascha

> @@ -1,6 +1,21 @@
>  Release v2025.11.0
>  ==================
>  
> +Configuration options
> +---------------------
> +
> +* The syntax of ``CONFIG_CRYPTO_PUBLIC_KEYS`` was updated with the introduction
> +  of the keyring feature. Previously, keys selected via
> +  ``CONFIG_CRYPTO_PUBLIC_KEYS`` were only used for fitimage verification. Now,
> +  fitimage verification uses the "fit" keyring. "fit" will be selected as the
> +  default keyring for transition but a warning will be emitted when no keyring
> +  is explicitly provided. Existing users should update their keyspec for
> +  fitimage public keys to ``keyring=fit[,fit-hint=<fit_hint>]:<crt>``
> +* The fit-hints in ``CONFIG_CRYPTO_PUBLIC_KEYS`` are now limited to identifiers
> +  matching the regular expression ``[a-zA-Z][a-zA-Z0-9_-]*``. Public keys with
> +  a ``fit-hint`` not conforming to this results in an error, affected key-hints
> +  must be changed. Please reach out to the mailing list if this causes issues.
> +
>  i.MX GPIOs
>  ----------
>  
> 
> -- 
> 2.51.2.535.g419c72cb8a
> 
> 

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