linux-kernel - Re: [PATCH] tpm_ffa_crb: access tpm service over FF-A direct message request v2

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Message-ID: <Z_jN3pRlv1PuwHGn@kernel.org>
Date: Fri, 11 Apr 2025 11:07:58 +0300
From: Jarkko Sakkinen <jarkko@...nel.org>
To: Yeoreum Yun <yeoreum.yun@....com>
Cc: peterhuewe@....de, jgg@...pe.ca, sudeep.holla@....com,
	stuart.yoder@....com, linux-integrity@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tpm_ffa_crb: access tpm service over FF-A direct message
 request v2

On Thu, Apr 10, 2025 at 12:07:01PM +0100, Yeoreum Yun wrote:
> @@ -277,7 +301,8 @@ static int tpm_crb_ffa_probe(struct ffa_device *ffa_dev)
> 
>  	tpm_crb_ffa = ERR_PTR(-ENODEV); // set tpm_crb_ffa so we can detect probe failure
> 
> -	if (!ffa_partition_supports_direct_recv(ffa_dev)) {
> +	if (!ffa_partition_supports_direct_recv(ffa_dev) &&
> +			!ffa_partition_supports_direct_req2_recv(ffa_dev)) {

	if (!ffa_partition_supports_direct_recv(ffa_dev) &&
	    !ffa_partition_supports_direct_req2_recv(ffa_dev)) {

BR, Jarkko