linux-kernel - Re: [PATCH 2/3] hwrng: starfive - Add TRNG driver for StarFive SoC

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Message-ID: <05aaa9f8-7a97-51c9-e18a-1c3753f2006b@linaro.org>
Date:   Wed, 21 Dec 2022 10:49:22 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jia Jie Ho <jiajie.ho@...rfivetech.com>,
        Olivia Mackall <olivia@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Emil Renner Berthing <kernel@...il.dk>,
        Conor Dooley <conor.dooley@...rochip.com>,
        linux-crypto@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 2/3] hwrng: starfive - Add TRNG driver for StarFive SoC

On 21/12/2022 10:08, Jia Jie Ho wrote:
> This adds driver support for the hardware random number generator in
> Starfive SoCs and adds StarFive TRNG entry to MAINTAINERS.
> 
> Co-developed-by: Jenny Zhang <jenny.zhang@...rfivetech.com>
> Signed-off-by: Jenny Zhang <jenny.zhang@...rfivetech.com>
> Signed-off-by: Jia Jie Ho <jiajie.ho@...rfivetech.com>
> ---
>  MAINTAINERS                            |   6 +
>  drivers/char/hw_random/Kconfig         |  11 +
>  drivers/char/hw_random/Makefile        |   1 +
>  drivers/char/hw_random/starfive-trng.c | 403 +++++++++++++++++++++++++
>  4 files changed, 421 insertions(+)
>  create mode 100644 drivers/char/hw_random/starfive-trng.c
> 

(...)

> +static const struct of_device_id trng_dt_ids[] = {
> +	{ .compatible = "starfive,jh7110-trng" },
> +	{ }
> +};
> +MODULE_DEVICE_TABLE(of, trng_dt_ids);
> +
> +static struct platform_driver starfive_trng_driver = {
> +	.probe	= starfive_trng_probe,
> +	.driver	= {
> +		.name		= "starfive-trng",
> +		.pm		= &starfive_trng_pm_ops,
> +		.of_match_table	= of_match_ptr(trng_dt_ids),

of_match_ptr goes with __maybe_unused. You will have now warnings, so
please test more your patches (W=1, sparse, smatch).

Best regards,
Krzysztof