From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from todd.t-8ch.de (todd.t-8ch.de [159.69.126.157])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by smtp.subspace.kernel.org (Postfix) with ESMTPS id E2CDA21E097
	for <linux-kernel@vger.kernel.org>; Fri, 29 May 2026 06:07:53 +0000 (UTC)
Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.69.126.157
ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;
	t=1780034875; cv=none; b=OqbIPKV9kexngp2sf4IEHTsM0iyyisy93uBpxbqo+vGMU1yupfGbl4wYedwE6gsVprrqa1tQdHnJaEjF295JQS2EOsTnhVteztb1odH17XgKyl1s0HKB9UJgGt4iYrD+XUHv7jTXPeDeTRb2XzygUMCfVMdeg3mC0G0K2gtetIE=
ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org;
	s=arc-20240116; t=1780034875; c=relaxed/simple;
	bh=tCY7u9sGwGDsxEP12gFA3d/nr6xylCVmDrw2eeoMPO8=;
	h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version:
	 Content-Type:Content-Disposition:In-Reply-To; b=fw/45ykLb5Yx95reVKUzzx0AYjVXJRla3kNxlDYK3r4SGZUaoMM1diTB7FgCfuXOXBBxB/FB0ExH2BlGBuWtEdMvOYJsxYA7Tam+TbGkMDu8/sX+AkKN0zm6LnJhgs3BpxHMXHStI+bJH9juslOIx94AULafeAo9o1rqO8PuK7w=
ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net; spf=pass smtp.mailfrom=weissschuh.net; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b=TSNLKDSp; arc=none smtp.client-ip=159.69.126.157
Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net
Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=weissschuh.net
Authentication-Results: smtp.subspace.kernel.org;
	dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b="TSNLKDSp"
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net;
	s=mail; t=1780034872;
	bh=tCY7u9sGwGDsxEP12gFA3d/nr6xylCVmDrw2eeoMPO8=;
	h=Date:From:To:Cc:Subject:References:In-Reply-To:From;
	b=TSNLKDSphYOKYYNdPpo2cKV3+mSk4nOoO3/DBaalRb3p0IIv9RY3FDr6qT4BZR77k
	 MaOEz3xtHxSXT+LEAsBNHr4vJWmgXkvO6hIz7m3jv6rA/ix+vji/MusZOc9lw9v9Dp
	 2sHH9++bE5StSTjN4DBdRkn4DMRF4jpI26JZbDs0=
Date: Fri, 29 May 2026 08:07:51 +0200
From: Thomas =?utf-8?Q?Wei=C3=9Fschuh?= <linux@weissschuh.net>
To: Theron York <theron.york@cloudnuke.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: LLVM 21 compatibility issue with swab.h
Message-ID: <da78e4c9-36d6-4eba-beaa-310a7671acdb@t-8ch.de>
References: <399bf58e-1c91-4c3c-a3df-dae08a891b55@cloudnuke.org>
Precedence: bulk
X-Mailing-List: linux-kernel@vger.kernel.org
List-Id: <linux-kernel.vger.kernel.org>
List-Subscribe: <mailto:linux-kernel+subscribe@vger.kernel.org>
List-Unsubscribe: <mailto:linux-kernel+unsubscribe@vger.kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <399bf58e-1c91-4c3c-a3df-dae08a891b55@cloudnuke.org>

Hi Theron,

On 2026-05-29 00:23:09-0500, Theron York wrote:
> Building Linux kernel 7.0.6 on Gentoo with LLVM  fails:
>   error: unknown type name '__attribute_const__'
> 
> Setup:
> - Gentoo Linux
> - LLVM 21 (clang)
> - musl libc
> - x86_64
> 
> Workaround:
>   sed -i 's/__attribute_const__/__attribute__((const))/g'
> ./include/uapi/linux/swab.h

can you post all the commands you are executing from a clean source
checkout *and* the full error message?
That will make it much easier to help you.


Thomas