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AJvYcCWJb0+wc81ny0T98nTQJcjaWQbhtn2WRaS9wefMNPHn6JFAvzvdOow2KmzFpV9hQtJGkdiZib2t@lists.freedesktop.org X-Gm-Message-State: AOJu0Yx+lr8TwuvDuTVACrhBXFTQEOXc6h+nNYzJivz7ad2qCkkTlNUP 6prC7Aj7lnAvaGpBrxNz3kotEC1ZKlnFDtT8/mODp5t58iIaDFWkOBkapZ61OJFvtjePI+FrN0n 61YC2uh+yNDjk7g7s9A== X-Received: from ejcbp3.prod.google.com ([2002:a17:907:26c3:b0:b9b:54ac:688a]) (user=aliceryhl job=prod-delivery.src-stubby-dispatcher) by 2002:a17:907:c448:b0:b99:5f69:9ee2 with SMTP id a640c23a62f3a-b9c13cf93e8mr221111666b.52.1775046297024; Wed, 01 Apr 2026 05:24:57 -0700 (PDT) Date: Wed, 1 Apr 2026 12:24:55 +0000 In-Reply-To: <20260401114540.30108-2-ojeda@kernel.org> Mime-Version: 1.0 References: <20260401114540.30108-1-ojeda@kernel.org> <20260401114540.30108-2-ojeda@kernel.org> Message-ID: Subject: Re: [PATCH 01/33] rust: bump Rust minimum supported version to 1.85.0 (Debian Trixie) From: Alice Ryhl To: Miguel Ojeda Content-Type: text/plain; charset="utf-8" Message-ID-Hash: JF6SUNUWALTBDHEAAV3LQBCHWZVBAEYD X-Message-ID-Hash: JF6SUNUWALTBDHEAAV3LQBCHWZVBAEYD X-MailFrom: 3mQ7NaQkKB0Acnkegt0jniqqing.eqopqwxgcwnkuvu.htggfgumvqr.qti@flex--aliceryhl.bounces.google.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Nathan Chancellor , Nicolas Schier , Danilo Krummrich , Andreas Hindborg , Catalin Marinas , Will Deacon , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Courbot , Simona Vetter , Brendan Higgins , David Gow , Greg Kroah-Hartman , Arve =?utf-8?B?SGrDuG5uZXbDpWc=?= , Todd Kjos , Christian Brauner , Carlos Llamas , Jonathan Corbet , Boqun Feng , Gary Guo , =?utf-8?B?QmrDtnJu?= Roy Baron , Benno Lossin , Trevor Gross , rust-for-linux@vger.kernel.org, linux-kbuild@vger.kernel.org, Lorenzo Stoakes , Vlastimil Babka , "Liam R . Howlett" , Uladzislau Rezki , linux-block@vger.kernel.org, moderated for non-subscribers , Alexandre Ghiti , linux-riscv@lists.infradead.org, nouveau@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Rae Moar , linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com, Nick Desaulniers , Bill Wendling , Justin Stitt , llvm@lists.linux.dev, linux-kernel@vger.kernel.org, Shuah Khan , linux-doc@vger.kernel.org X-Mailman-Version: 3.3.8 Precedence: list List-Id: Nouveau development list Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Wed, Apr 01, 2026 at 01:45:08PM +0200, Miguel Ojeda wrote: > As proposed in the past in e.g. LPC 2025 and the Maintainers Summit [1], > we are going to follow Debian Stable's Rust versions as our minimum > supported version. > > Debian Trixie was released with a Rust 1.85.0 toolchain [2], which it > still uses to this day [3] (i.e. no update to Rust 1.85.1). Debian really *should* pick up 1.85.1. It contains bugfixes serious enough that the Rust team decided it was reasonble to release a point release. > Debian Trixie's release happened on 2025-08-09 [4], which means that a > fair amount of time has passed since its release for kernel developers > to upgrade. > > Thus bump the minimum to the new version. > > Then, in later commits, clean up most of the workarounds and other bits > that this upgrade of the minimum allows us. > > pin-init was left as-is since the patches come from upstream. And the > vendored crates are unmodified, since we do not want to change those. > > Note that the minimum LLVM major version for Rust 1.85.0 is LLVM 18 (the > Rust upstream binaries use LLVM 19.1.7), thus e.g. `RUSTC_LLVM_VERSION` > tests can also be updated, but there are no suitable ones to simplify. > > Ubuntu 25.10 also has a recent enough Rust toolchain [5], and they also > provide versioned packages with a Rust 1.85.1 toolchain even back to > Ubuntu 22.04 LTS [6]. > > Link: https://lwn.net/Articles/1050174/ [1] > Link: https://www.debian.org/releases/trixie/release-notes/whats-new.en.html#desktops-and-well-known-packages [2] > Link: https://packages.debian.org/trixie/rustc [3] > Link: https://www.debian.org/releases/trixie/ [4] > Link: https://packages.ubuntu.com/search?suite=all&searchon=names&keywords=rustc [5] > Link: https://launchpad.net/ubuntu/+source/rustc-1.85 [6] > Signed-off-by: Miguel Ojeda Acked-by: Alice Ryhl