linux-kernel - Re: [PATCH 6.12/6.13] loongarch: Use ASM

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Message-ID: <20250309195622.1541936-1-ojeda@kernel.org>
Date: Sun,  9 Mar 2025 20:56:22 +0100
From: Miguel Ojeda <ojeda@...nel.org>
To: chenhuacai@...ngson.cn
Cc: chenhuacai@...nel.org,
	gregkh@...uxfoundation.org,
	jpoimboe@...nel.org,
	kernel@...0n.name,
	linux-kernel@...r.kernel.org,
	loongarch@...ts.linux.dev,
	peterz@...radead.org,
	sashal@...nel.org,
	stable@...r.kernel.org,
	Miguel Ojeda <ojeda@...nel.org>
Subject: Re: [PATCH 6.12/6.13] loongarch: Use ASM_REACHABLE

On Sat, 08 Mar 2025 13:37:53 +0800 Huacai Chen <chenhuacai@...ngson.cn> wrote:
>
> From: Peter Zijlstra <peterz@...radead.org>
>
> commit 624bde3465f660e54a7cd4c1efc3e536349fead5 upstream.
>
> annotate_reachable() is unreliable since the compiler is free to place
> random code inbetween two consecutive asm() statements.
>
> This removes the last and only annotate_reachable() user.
>
> Backport to solve a build error since relevant commits have already been
> backported.
>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
> Acked-by: Josh Poimboeuf <jpoimboe@...nel.org>
> Link: https://lore.kernel.org/r/20241128094312.133437051@infradead.org
> Closes: https://lore.kernel.org/loongarch/20250307214943.372210-1-ojeda@kernel.org/
> Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>

This indeed removes the build failure for me -- built-tested for loongarch64
(together with the rest of the Rust long backport series):

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

Thanks!

Cheers,
Miguel