linux-kernel - Re: [PATCH -tip] x86/idle: Work around LLVM assembler bug with MONITOR and MWAIT insn

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Message-ID: <20250403111943.GCZ-5uzyd-HuhAcNui@fat_crate.local>
Date: Thu, 3 Apr 2025 13:19:43 +0200
From: Borislav Petkov <bp@...en8.de>
To: Uros Bizjak <ubizjak@...il.com>
Cc: x86@...nel.org, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H. Peter Anvin" <hpa@...or.com>, kernel test robot <lkp@...el.com>
Subject: Re: [PATCH -tip] x86/idle: Work around LLVM assembler bug with
 MONITOR and MWAIT insn

On Thu, Apr 03, 2025 at 11:27:02AM +0200, Uros Bizjak wrote:
> IMO, in this case the fixup also documents the LLVM bug, so perhaps
> the fixup on top is desirable for documentation purposes.

No.

1. You put a comment over the function so that someone sees it and *actually*
   fixes it in the compilers

2. Explain in the commit message of the correct patches *why* it cannot be
   done like you were trying initially and leave a lore link into them so that
   people can find the old discussion.

Lemme zap those patches so that they can be done properly.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette