linux-kernel - Re: [RFC PATCH v2 3/6] tpm: add send_recv() ops in tpm_class

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Message-ID: <Z8Jmps6AF_geaHUw@kernel.org>
Date: Sat, 1 Mar 2025 03:45:10 +0200
From: Jarkko Sakkinen <jarkko@...nel.org>
To: Stefano Garzarella <sgarzare@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>,
	Claudio Carvalho <cclaudio@...ux.ibm.com>,
	Peter Huewe <peterhuewe@....de>, x86@...nel.org,
	Dov Murik <dovmurik@...ux.ibm.com>, linux-coco@...ts.linux.dev,
	Dionna Glaze <dionnaglaze@...gle.com>,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	Ingo Molnar <mingo@...hat.com>, Joerg Roedel <jroedel@...e.de>,
	Jason Gunthorpe <jgg@...pe.ca>, linux-integrity@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Tom Lendacky <thomas.lendacky@....com>,
	Borislav Petkov <bp@...en8.de>, "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [RFC PATCH v2 3/6] tpm: add send_recv() ops in tpm_class_ops

On Fri, Feb 28, 2025 at 06:07:17PM +0100, Stefano Garzarella wrote:
> +	int (*send_recv)(struct tpm_chip *chip, u8 *buf, size_t buf_len,
> +			 size_t to_send);

Please describe the meaning and purpose of to_send.

BR, Jarkko