From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ED48BE56A; Wed, 1 Apr 2026 12:28:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775046508; cv=none; b=NDeW+rXsGVNoE4gM//qeWCkERkBtLU15dWo3ivqQ3IK2GkNmIZIl5uWE1YeC2O9loCxIJ41rzFWi4SMm4rUQBL1fmtJraeJiRUxzasZPz87u17bt89xzY4UdN2fcsYaqBDpYcHQTshWkTE5Iny062zIBAnQ2NBtYLTvROAiu9nk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775046508; c=relaxed/simple; bh=O49vJGP71LPrseQ1w4juo0EGvmtjLkksjiwhQfOJK5w=; h=Mime-Version:Content-Type:Date:Message-Id:Subject:Cc:To:From: References:In-Reply-To; b=OTHBZr3BoUqbOHgW9S9rwDwi/UeLjo/uAvCvmFZH6wf8ld6Th1DstWjEpjktrKqFWrOrHuk3qAOBqoRNg1I6Sh6nVQZ55TnJqFXUKet3nSqp3bAbi9EkwS/tuBP+BTyf9eg8yH7Yl8kbY+cLwk+EcnVDYqXMl/nzLCwh2M8t5A8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=i5g8QBjf; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="i5g8QBjf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AAC72C4CEF7; Wed, 1 Apr 2026 12:28:18 +0000 (UTC) DKIM-Signature: v=1; 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== Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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) Cc: "Nathan Chancellor" , "Nicolas Schier" , "Andreas Hindborg" , "Catalin Marinas" , "Will Deacon" , "Paul Walmsley" , "Palmer Dabbelt" , "Albert Ou" , "Alexandre Courbot" , "David Airlie" , "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" , , , "Lorenzo Stoakes" , "Vlastimil Babka" , "Liam R . Howlett" , "Uladzislau Rezki" , , "moderated for non-subscribers" , "Alexandre Ghiti" , , , , "Rae Moar" , , , "Nick Desaulniers" , "Bill Wendling" , "Justin Stitt" , , , "Shuah Khan" , 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> 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