linux-kernel - [PATCH] workqueue: rust: sync with `WORK_CPU

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Date: Thu,  1 Feb 2024 20:06:20 +0100
From: Miguel Ojeda <ojeda@...nel.org>
To: Tejun Heo <tj@...nel.org>
Cc: Miguel Ojeda <ojeda@...nel.org>,
	Wedson Almeida Filho <wedsonaf@...il.com>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <benno.lossin@...ton.me>,
	Andreas Hindborg <a.hindborg@...sung.com>,
	Alice Ryhl <aliceryhl@...gle.com>,
	rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	patches@...ts.linux.dev
Subject: [PATCH] workqueue: rust: sync with `WORK_CPU_UNBOUND` change

Commit e563d0a7cdc1 ("workqueue: Break up enum definitions and give
names to the types") gives a name to the `enum` where `WORK_CPU_UNBOUND`
was defined, so `bindgen` changes its output from e.g.:

    pub type _bindgen_ty_10 = core::ffi::c_uint;
    pub const WORK_CPU_UNBOUND: _bindgen_ty_10 = 64;

to e.g.:

    pub type wq_misc_consts = core::ffi::c_uint;
    pub const wq_misc_consts_WORK_CPU_UNBOUND: wq_misc_consts = 64;

Thus update Rust's side to match the change (which requires a slight
reformat of the code), fixing the build error.

Closes: https://lore.kernel.org/rust-for-linux/CANiq72=9PZ89bCAVX0ZV4cqrYSLoZWyn-d_K4KpBMHjwUMdC3A@mail.gmail.com/
Fixes: e563d0a7cdc1 ("workqueue: Break up enum definitions and give names to the types")
Signed-off-by: Miguel Ojeda <ojeda@...nel.org>
---
Tejun: here is the formal patch as you requested. Please feel free to
either take it or to rebase to fix the old commit. Thanks!

 rust/kernel/workqueue.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/rust/kernel/workqueue.rs b/rust/kernel/workqueue.rs
index 498397877376..d00231e18007 100644
--- a/rust/kernel/workqueue.rs
+++ b/rust/kernel/workqueue.rs
@@ -199,7 +199,11 @@ pub fn enqueue<W, const ID: u64>(&self, w: W) -> W::EnqueueOutput
         // stay valid until we call the function pointer in the `work_struct`, so the access is ok.
         unsafe {
             w.__enqueue(move |work_ptr| {
-                bindings::queue_work_on(bindings::WORK_CPU_UNBOUND as _, queue_ptr, work_ptr)
+                bindings::queue_work_on(
+                    bindings::wq_misc_consts_WORK_CPU_UNBOUND as _,
+                    queue_ptr,
+                    work_ptr,
+                )
             })
         }
     }

base-commit: 15930da42f8981dc42c19038042947b475b19f47
--
2.43.0