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Message-ID: <CANiq72=7dQ1msy6Xqy+yfAFuzkz8XGnnTsFLb6t5CUFzsoSCfg@mail.gmail.com>
Date: Sun, 7 Sep 2025 21:22:45 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Ritvik Gupta <ritvikfoss@...il.com>
Cc: Thomas Gleixner <tglx@...utronix.de>, Peter Zijlstra <peterz@...radead.org>,
Miguel Ojeda <ojeda@...nel.org>, 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 <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>,
Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>,
Danilo Krummrich <dakr@...nel.org>, Nathan Chancellor <nathan@...nel.org>,
Nick Desaulniers <nick.desaulniers+lkml@...il.com>, Bill Wendling <morbo@...gle.com>,
Justin Stitt <justinstitt@...gle.com>, skhan@...uxfoundation.org,
linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org,
llvm@...ts.linux.dev
Subject: Re: [PATCH] rust: kernel: cpu: mark `CpuId::current()` inline
On Mon, Aug 11, 2025 at 3:19 AM Ritvik Gupta <ritvikfoss@...il.com> wrote:
>
> When building the kernel using llvm-20.1.7-rust-1.89.0-x86_64,
> this symbol is generated:
>
> $ llvm-nm --demangle vmlinux | grep CpuId
> ffffffff84c77450 T <kernel::cpu::CpuId>::current
>
> However, this Rust symbol is a trivial wrapper around
> `raw_smp_processor_id` function. It doesn't make sense
> to go through a trivial wrapper for such functions,
> so mark it inline.
>
> After applying this patch, the above command will produce no output.
>
> Suggested-by: Alice Ryhl <aliceryhl@...gle.com>
> Link: https://github.com/Rust-for-Linux/linux/issues/1145
> Signed-off-by: Ritvik Gupta <ritvikfoss@...il.com>
If no one is planning to pick this one, I will -- thanks!
Cheers,
Miguel
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