From f32fb9c58a5bd436f082dfa12639177b9da87680 Mon Sep 17 00:00:00 2001 From: Miguel Ojeda Date: Mon, 6 Apr 2026 01:52:41 +0200 Subject: rust: bump Rust minimum supported version to 1.85.0 (Debian Trixie) 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.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] Acked-by: Tamir Duberstein Acked-by: Benno Lossin Acked-by: Gary Guo Acked-by: Danilo Krummrich Acked-by: Alice Ryhl Link: https://patch.msgid.link/20260405235309.418950-6-ojeda@kernel.org Signed-off-by: Miguel Ojeda --- scripts/min-tool-version.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'scripts') diff --git a/scripts/min-tool-version.sh b/scripts/min-tool-version.sh index 99b5575c1ef7..a270ec761f64 100755 --- a/scripts/min-tool-version.sh +++ b/scripts/min-tool-version.sh @@ -31,7 +31,7 @@ llvm) fi ;; rustc) - echo 1.78.0 + echo 1.85.0 ;; bindgen) echo 0.65.1 -- cgit v1.2.3