linux-kernel - Re: [PATCH v7 4/4] optee: probe RPMB device using RPMB subsystem

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Message-ID: <Zl2Ibey9Qck-VLWE@manut.de>
Date: Mon, 3 Jun 2024 11:10:05 +0200
From: Manuel Traut <manut@...ka.net>
To: Jens Wiklander <jens.wiklander@...aro.org>
Cc: linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org,
	op-tee@...ts.trustedfirmware.org,
	Shyam Saini <shyamsaini@...ux.microsoft.com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Jerome Forissier <jerome.forissier@...aro.org>,
	Sumit Garg <sumit.garg@...aro.org>,
	Ilias Apalodimas <ilias.apalodimas@...aro.org>,
	Bart Van Assche <bvanassche@....org>,
	Randy Dunlap <rdunlap@...radead.org>,
	Ard Biesheuvel <ardb@...nel.org>, Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Mikko Rapeli <mikko.rapeli@...aro.org>
Subject: Re: [PATCH v7 4/4] optee: probe RPMB device using RPMB subsystem

On 14:13 Mon 27 May     , Jens Wiklander wrote:
> --- a/drivers/tee/optee/ffa_abi.c
> +++ b/drivers/tee/optee/ffa_abi.c
> @@ -7,6 +7,7 @@
>  
>  #include <linux/arm_ffa.h>
>  #include <linux/errno.h>
> +#include <linux/rpmb.h>
>  #include <linux/scatterlist.h>
>  #include <linux/sched.h>
>  #include <linux/slab.h>
> @@ -903,6 +904,10 @@ static int optee_ffa_probe(struct ffa_device *ffa_dev)
>  	optee->ffa.bottom_half_value = U32_MAX;
>  	optee->rpc_param_count = rpc_param_count;
>  
> +	if (IS_REACHABLE(CONFIG_RPMB) &&
> +	    (sec_caps & OPTEE_FFA_SEC_CAP_RPMB_PROBE))
> +		optee->in_kernel_rpmb_routing = true;

The SEC_CAP_RPMB_PROBE flag seems to be missing in optee_os at the moment.
If I remove this check here, the series works for me.

Cheers
Manuel