It is showing in the output of the bits! macro when using the nightly toolchain, though it's not clear if it is intentional or a bug. Shut it up for now.
Link: https://github.com/rust-lang/rust-clippy/issues/15852 Reported-by: Richard Henderson <[email protected]> Suggested-by: Manos Pitsidianakis <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]> --- rust/qemu-macros/src/lib.rs | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/rust/qemu-macros/src/lib.rs b/rust/qemu-macros/src/lib.rs index 3e21b67b471..9157f77a4dd 100644 --- a/rust/qemu-macros/src/lib.rs +++ b/rust/qemu-macros/src/lib.rs @@ -401,7 +401,14 @@ pub fn bits_const_internal(ts: TokenStream) -> TokenStream { let ts = proc_macro2::TokenStream::from(ts); let mut it = ts.into_iter(); - BitsConstInternal::parse(&mut it) - .unwrap_or_else(syn::Error::into_compile_error) - .into() + let out = BitsConstInternal::parse(&mut it) + .unwrap_or_else(syn::Error::into_compile_error); + + // https://github.com/rust-lang/rust-clippy/issues/15852 + quote! { + { + #[allow(clippy::double_parens)] + #out + } + }.into() } -- 2.51.0
