linux-kernel - Re: [PATCH V4 3/3] powerpc: Enable Rust for ppc64le

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Message-ID: <CANiq72=V4yyOwsxvWzGkXQAcMhoTaFZ8aNAe15Aa4BU9JtDGhA@mail.gmail.com>
Date: Mon, 9 Feb 2026 12:52:26 +0100
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: "Mukesh Kumar Chaurasiya (IBM)" <mkchauras@...il.com>
Cc: linkmauve@...kmauve.fr, ojeda@...nel.org, boqun.feng@...il.com, 
	gary@...yguo.net, bjorn3_gh@...tonmail.com, lossin@...nel.org, 
	a.hindborg@...nel.org, aliceryhl@...gle.com, tmgross@...ch.edu, 
	dakr@...nel.org, corbet@....net, maddy@...ux.ibm.com, mpe@...erman.id.au, 
	npiggin@...il.com, chleroy@...nel.org, peterz@...radead.org, 
	jpoimboe@...nel.org, jbaron@...mai.com, rostedt@...dmis.org, ardb@...nel.org, 
	rust-for-linux@...r.kernel.org, linux-doc@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH V4 3/3] powerpc: Enable Rust for ppc64le

On Mon, Feb 9, 2026 at 11:55 AM Mukesh Kumar Chaurasiya (IBM)
<mkchauras@...il.com> wrote:
>
> diff --git a/rust/Makefile b/rust/Makefile
> index ae22f2c5f0b3..14febe9c7643 100644
> --- a/rust/Makefile
> +++ b/rust/Makefile
> @@ -392,7 +392,15 @@ BINDGEN_TARGET_x86 := x86_64-linux-gnu
>  BINDGEN_TARGET_arm64   := aarch64-linux-gnu
>  BINDGEN_TARGET_arm     := arm-linux-gnueabi
>  BINDGEN_TARGET_loongarch       := loongarch64-linux-gnusf
> +
> +ifdef CONFIG_PPC64
> +ifdef CONFIG_CPU_LITTLE_ENDIAN
> +BINDGEN_TARGET_powerpc := powerpc64le-linux-gnu
> +endif
> +else
>  BINDGEN_TARGET_powerpc := powerpc-linux-gnu
> +endif
> +
>  BINDGEN_TARGET_um      := $(BINDGEN_TARGET_$(SUBARCH))
>  BINDGEN_TARGET         := $(BINDGEN_TARGET_$(SRCARCH))

This looks reasonable.

My only nit is that we could trigger an error in the nested if since
you wrote the if already. Otherwise, we could remove the nested one
until ppc64 is supported, or am I missing something?

Either way, for the Rust bits if powerpc maintainers are taking this:

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

Thanks!

Cheers,
Miguel