linux-kernel - Re: [PATCH] rust: Add -fno-isolate-erroneous-paths-dereference to bindgen_skip_c

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Message-ID: <CANiq72mvZy+X2ko_sxVCn-2cnsR29boAzPDrYn=S-Tp0xSvvHw@mail.gmail.com>
Date: Wed, 15 Oct 2025 12:20:24 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Xi Ruoyao <xry111@...111.site>
Cc: Nathan Chancellor <nathan@...nel.org>, loongarch@...ts.linux.dev, 
	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>, Nick Desaulniers <nick.desaulniers+lkml@...il.com>, 
	Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>, 
	Huacai Chen <chenhuacai@...nel.org>, Tiezhu Yang <yangtiezhu@...ngson.cn>, 
	"open list:RUST" <rust-for-linux@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>, 
	"open list:CLANG/LLVM BUILD SUPPORT:Keyword:b(?i:clang|llvm)b" <llvm@...ts.linux.dev>
Subject: Re: [PATCH] rust: Add -fno-isolate-erroneous-paths-dereference to bindgen_skip_c_flags

On Wed, Oct 15, 2025 at 4:21 AM Xi Ruoyao <xry111@...111.site> wrote:
>
> It's used to work around an objtool issue since commit abb2a5572264
> ("LoongArch: Add cflag -fno-isolate-erroneous-paths-dereference"), but
> it's then passed to bindgen and cause an error because Clang does not
> have this option.
>
> Fixes: abb2a5572264 ("LoongArch: Add cflag -fno-isolate-erroneous-paths-dereference")
> Signed-off-by: Xi Ruoyao <xry111@...111.site>

Seems OK -- if you are taking it through LoongArch:

Acked-by: Miguel Ojeda <ojeda@...nel.org>

Thanks!

Cheers,
Miguel