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[195.23.151.163]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-46666c57ba0sm38525006f8f.32.2026.06.23.11.58.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 23 Jun 2026 11:58:15 -0700 (PDT) Sender: Julian Braha Message-ID: Date: Tue, 23 Jun 2026 19:58:14 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 09/21] lib: rspdm: Initial commit of Rust SPDM To: alistair23@gmail.com, akpm@linux-foundation.org, rust-for-linux@vger.kernel.org, linux-pci@vger.kernel.org, jic23@kernel.org, bhelgaas@google.com, lukas@wunner.de, alistair@alistair23.me, linux-cxl@vger.kernel.org, djbw@kernel.org, linux-kernel@vger.kernel.org, Jonathan.Cameron@huawei.com Cc: boqun.feng@gmail.com, benno.lossin@proton.me, a.hindborg@kernel.org, bjorn3_gh@protonmail.com, gary@garyguo.net, wilfred.mallawa@wdc.com, aliceryhl@google.com, ojeda@kernel.org, alex.gaynor@gmail.com, tmgross@umich.edu References: <20260623045406.2589547-1-alistair.francis@wdc.com> <20260623045406.2589547-10-alistair.francis@wdc.com> Content-Language: en-US From: Julian Braha In-Reply-To: <20260623045406.2589547-10-alistair.francis@wdc.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Alistair, On 6/23/26 05:53, alistair23@gmail.com wrote: > +config RSPDM > + bool "Rust SPDM" > + depends on RUST > + select CRYPTO > + select X509_CERTIFICATE_PARSER > + help > + The Rust implementation of the Security Protocol and Data Model (SPDM) > + allows for device authentication, measurement, key exchange and > + encrypted sessions. > + > + Crypto algorithms negotiated with SPDM are limited to those enabled > + in .config. Users of SPDM therefore need to also select > + any algorithms they deem mandatory. This patch introduces an unmet dependency bug when the user enables RSPDM without enabling ASYMMETRIC_PUBLIC_KEY_SUBTYPE: WARNING: unmet direct dependencies detected for X509_CERTIFICATE_PARSER Depends on [n]: CRYPTO [=y] && ASYMMETRIC_KEY_TYPE [=n] && ASYMMETRIC_PUBLIC_KEY_SUBTYPE [=n] Selected by [y]: - RSPDM [=y] && RUST [=y] - Julian Braha