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When building the kernel using the llvm-18.1.3-rust-1.85.0-x86_64 with ARCH=arm64, the following symbols are generated: $nm vmlinux | grep ' _R'.*PollCondVar | rustfilt ... T <kernel::sync::poll::PollCondVar as kernel::init::PinnedDrop>::drop ... This Rust symbol is trivial wrappers around the C functions __wake_up_pollfree() and synchronize_rcu(). It doesn't make sense to go through a trivial wrapper for its functions, so mark it inline. [boqun: Reword the commit title and re-format the commit log per tip tree's requirement, remove unnecessary information from "nm vmlinux" result.] Link: https://github.com/Rust-for-Linux/linux/issues/1145 Suggested-by: Alice Ryhl <aliceryhl@google.com> Co-developed-by: Grace Deng <Grace.Deng006@Gmail.com> Signed-off-by: Grace Deng <Grace.Deng006@Gmail.com> Signed-off-by: Kunwu Chan <kunwu.chan@hotmail.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <benno.lossin@proton.me> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Link: https://lore.kernel.org/r/20250317025205.2366518-1-kunwu.chan@linux.dev