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From: "Eliot Courtney" <ecourtney@nvidia.com>
To: "Jesung Yang" <y.j3ms.n@gmail.com>,
	"Tamir Duberstein" <tamird@kernel.org>,
	"Eliot Courtney" <ecourtney@nvidia.com>
Cc: "Miguel Ojeda" <ojeda@kernel.org>,
	"Boqun Feng" <boqun.feng@gmail.com>,
	"Gary Guo" <gary@garyguo.net>,
	"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
	"Benno Lossin" <lossin@kernel.org>,
	"Andreas Hindborg" <a.hindborg@kernel.org>,
	"Alice Ryhl" <aliceryhl@google.com>,
	"Trevor Gross" <tmgross@umich.edu>,
	"Danilo Krummrich" <dakr@kernel.org>,
	"Nathan Chancellor" <nathan@kernel.org>,
	"Nicolas Schier" <nsc@kernel.org>,
	rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-kbuild@vger.kernel.org
Subject: Re: [PATCH 6/6] scripts: generate_rust_analyzer: move sysroot crates to sysroot_project
Date: Thu, 22 Jan 2026 18:23:53 +0900	[thread overview]
Message-ID: <DFV0C3T2RXW8.1F3G0Q7R999TC@nvidia.com> (raw)
In-Reply-To: <DFTTQTYK1KNF.2N1PS08QIAID2@gmail.com>

On Wed Jan 21, 2026 at 9:01 AM JST, Jesung Yang wrote:
> I still think the versioning infrastructure is a prerequisite as we're
> using the `sysroot_src` field here.
>
> If we specify `sysroot_src` without `crate_attrs = ["no_std"]`,
> rust-analyzer treats `std` as a dependency for all local crates by
> default. Consequently, any rust-analyzer version lacking `crate_attrs`
> support (which silently ignores `crate_attrs = ["no_std"]`) would
> incorrectly assume an implicit `std` dependency for all kernel modules.
> Having the versioning infrastructure first allows us to handle this
> transition without breaking the user experience for those on older
> toolchains.
Yeah, I agree that specifying sysroot_src by itself includes std and that
is potentially an issue.

But, currently due to issues like the relative #[path] include, the
sysroot crates aren't really processable very well by rust-analyzer
causing a lot of spurious errors and unresolved symbols, which make
using the LSP experience pretty bad IMO. OTOH, while the sysroot_src
approach does include std, it at least makes it usable. Personally I
find it more useful this way, but I can see the argument for both sides.

Tangential, but I'm not sure why the drivers don't specify no_std
themselves - then we wouldn't have to worry about this IIUC.

  reply	other threads:[~2026-01-22  9:24 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-20  8:52 [PATCH 0/6] scripts: generate_rust_analyzer: improve rust-project.json generation Eliot Courtney
2026-01-20  8:52 ` [PATCH 1/6] scripts: generate_rust_analyzer: rename cfg to generated_cfg Eliot Courtney
2026-01-20 15:28   ` Tamir Duberstein
2026-03-02 17:09     ` Tamir Duberstein
2026-01-20  8:52 ` [PATCH 2/6] scripts: generate_rust_analyzer: plumb editions via command line Eliot Courtney
2026-01-20 13:57   ` Miguel Ojeda
2026-01-20 15:28   ` Tamir Duberstein
2026-01-20  8:52 ` [PATCH 3/6] scripts: generate_rust_analyzer: plumb crate-attrs Eliot Courtney
2026-01-20 15:28   ` Tamir Duberstein
2026-01-20  8:52 ` [PATCH 4/6] scripts: generate_rust_analyzer: plumb common crate-attrs for non-host crates Eliot Courtney
2026-01-20 15:28   ` Tamir Duberstein
2026-01-20  8:52 ` [PATCH 5/6] scripts: generate_rust_analyzer: add pin_init to driver crate deps Eliot Courtney
2026-01-20 15:28   ` Tamir Duberstein
2026-01-20  8:52 ` [PATCH 6/6] scripts: generate_rust_analyzer: move sysroot crates to sysroot_project Eliot Courtney
2026-01-20 15:34   ` Tamir Duberstein
2026-01-21  0:01     ` Jesung Yang
2026-01-22  9:23       ` Eliot Courtney [this message]
2026-01-22 11:06         ` Jesung Yang
2026-01-23  5:45           ` Eliot Courtney
2026-01-23 12:08             ` Miguel Ojeda
2026-01-23 12:23               ` Gary Guo
2026-01-23 12:31                 ` Miguel Ojeda
2026-01-20 13:38 ` [PATCH 0/6] scripts: generate_rust_analyzer: improve rust-project.json generation Miguel Ojeda

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