linux-kernel - Re: [PATCH v1 15/17] KEYS: trusted: Make use of tee bus methods

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Message-ID: <aT-6jibmsCK6BPhP@sumit-X1>
Date: Mon, 15 Dec 2025 16:36:46 +0900
From: Sumit Garg <sumit.garg@...nel.org>
To: Uwe Kleine-König <u.kleine-koenig@...libre.com>
Cc: Jens Wiklander <jens.wiklander@...aro.org>,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	Jarkko Sakkinen <jarkko@...nel.org>,
	Mimi Zohar <zohar@...ux.ibm.com>,
	David Howells <dhowells@...hat.com>,
	Paul Moore <paul@...l-moore.com>, James Morris <jmorris@...ei.org>,
	"Serge E. Hallyn" <serge@...lyn.com>,
	op-tee@...ts.trustedfirmware.org, linux-integrity@...r.kernel.org,
	keyrings@...r.kernel.org, linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 15/17] KEYS: trusted: Make use of tee bus methods

On Thu, Dec 11, 2025 at 06:15:09PM +0100, Uwe Kleine-König wrote:
> The tee bus got dedicated callbacks for probe and remove.
> Make use of these. This fixes a runtime warning about the driver needing
> to be converted to the bus methods.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...libre.com>
> ---
>  security/keys/trusted-keys/trusted_tee.c | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)

Reviewed-by: Sumit Garg <sumit.garg@....qualcomm.com>

-Sumit

> 
> diff --git a/security/keys/trusted-keys/trusted_tee.c b/security/keys/trusted-keys/trusted_tee.c
> index 3cea9a377955..6e465c8bef5e 100644
> --- a/security/keys/trusted-keys/trusted_tee.c
> +++ b/security/keys/trusted-keys/trusted_tee.c
> @@ -202,9 +202,9 @@ static int optee_ctx_match(struct tee_ioctl_version_data *ver, const void *data)
>  		return 0;
>  }
>  
> -static int trusted_key_probe(struct device *dev)
> +static int trusted_key_probe(struct tee_client_device *rng_device)
>  {
> -	struct tee_client_device *rng_device = to_tee_client_device(dev);
> +	struct device *dev = &rng_device->dev;
>  	int ret;
>  	struct tee_ioctl_open_session_arg sess_arg;
>  
> @@ -244,13 +244,11 @@ static int trusted_key_probe(struct device *dev)
>  	return ret;
>  }
>  
> -static int trusted_key_remove(struct device *dev)
> +static void trusted_key_remove(struct tee_client_device *dev)
>  {
>  	unregister_key_type(&key_type_trusted);
>  	tee_client_close_session(pvt_data.ctx, pvt_data.session_id);
>  	tee_client_close_context(pvt_data.ctx);
> -
> -	return 0;
>  }
>  
>  static const struct tee_client_device_id trusted_key_id_table[] = {
> @@ -261,11 +259,11 @@ static const struct tee_client_device_id trusted_key_id_table[] = {
>  MODULE_DEVICE_TABLE(tee, trusted_key_id_table);
>  
>  static struct tee_client_driver trusted_key_driver = {
> +	.probe		= trusted_key_probe,
> +	.remove		= trusted_key_remove,
>  	.id_table	= trusted_key_id_table,
>  	.driver		= {
>  		.name		= DRIVER_NAME,
> -		.probe		= trusted_key_probe,
> -		.remove		= trusted_key_remove,
>  	},
>  };
>  
> -- 
> 2.47.3
>