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a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775046507; bh=O49vJGP71LPrseQ1w4juo0EGvmtjLkksjiwhQfOJK5w=; h=Date:Subject:Cc:To:From:References:In-Reply-To:From; b=i5g8QBjfWYqqmsY/6gikqA6VbYsTKPt6jYNlzfpt/hlVZvLZ7Yn2f9Mwwgt8dN5JF 7e7Bu4PEukyqxho1Ov2DafoQWs/xAn5PyAA7wQfHztq+mToGswliWO1C8h+mCo/M0g ZDUIUvfuznGAoXZ/R4cv7RB50+ZN/NfWxx4BZrHyPKoFBNIRsjNXeBYTY0YXrxvvU+ DIZiEH11EwNiHdEjrJOtdyAMP2YqgPWrwOMB/i50mlpWFgru/5oCRwkwc4Gyy0y4KL quf6mM7Red2FCTxsn4Y7v8Pxo924hk9y06klCwIJgrCXLohvnRWCfLw6KmUlq0kYB2 65aA7u/x+0Ang== Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Wed, 01 Apr 2026 14:28:16 +0200 Message-Id: Subject: Re: [PATCH 01/33] rust: bump Rust minimum supported version to 1.85.0 (Debian Trixie) To: "Miguel Ojeda" From: "Danilo Krummrich" References: <20260401114540.30108-1-ojeda@kernel.org> <20260401114540.30108-2-ojeda@kernel.org> In-Reply-To: <20260401114540.30108-2-ojeda@kernel.org> Message-ID-Hash: JYGLBCS2IR3HGGH5CP4OYM4RS3T23M5I X-Message-ID-Hash: JYGLBCS2IR3HGGH5CP4OYM4RS3T23M5I X-MailFrom: dakr@kernel.org X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation CC: Nathan Chancellor , Nicolas Schier , Andreas Hindborg , Catalin Marinas , Will Deacon , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Courbot , Simona Vetter , Brendan Higgins , David Gow , Greg Kroah-Hartman , =?utf-8?q?Arve_Hj=C3=B8nnev=C3=A5g?= , Todd Kjos , Christian Brauner , Carlos Llamas , Alice Ryhl , Jonathan Corbet , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_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 1, 2026 at 1:45 PM CEST, 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 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.h= tml#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=3Dall&searchon=3Dnames&key= words=3Drustc [5] > Link: https://launchpad.net/ubuntu/+source/rustc-1.85 [6] > Signed-off-by: Miguel Ojeda Acked-by: Danilo Krummrich