linux-kernel - Re: [RFC PATCH v1 18/38] X.509: Move certificate length retrieval into new helper

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Message-ID: <20250804222745.GA3645133@bhelgaas>
Date: Mon, 4 Aug 2025 17:27:45 -0500
From: Bjorn Helgaas <helgaas@...nel.org>
To: "Aneesh Kumar K.V (Arm)" <aneesh.kumar@...nel.org>
Cc: linux-coco@...ts.linux.dev, kvmarm@...ts.linux.dev,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	aik@....com, lukas@...ner.de, Samuel Ortiz <sameo@...osinc.com>,
	Xu Yilun <yilun.xu@...ux.intel.com>, Jason Gunthorpe <jgg@...pe.ca>,
	Suzuki K Poulose <Suzuki.Poulose@....com>,
	Steven Price <steven.price@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Marc Zyngier <maz@...nel.org>, Will Deacon <will@...nel.org>,
	Oliver Upton <oliver.upton@...ux.dev>,
	Dan Williams <dan.j.williams@...el.com>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: Re: [RFC PATCH v1 18/38] X.509: Move certificate length retrieval
 into new helper

On Mon, Jul 28, 2025 at 07:21:55PM +0530, Aneesh Kumar K.V (Arm) wrote:
> From: Lukas Wunner <lukas@...ner.de>
> 
> The upcoming in-kernel SPDM library (Security Protocol and Data Model,
> https://www.dmtf.org/dsp/DSP0274) needs to retrieve the length from
> ASN.1 DER-encoded X.509 certificates.
> 
> Such code already exists in x509_load_certificate_list(), so move it
> into a new helper for reuse by SPDM.
> 
> Export the helper so that SPDM can be tristate.  (Some upcoming users of
> the SPDM libray may be modular, such as SCSI and ATA.)

s/libray/library/