From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5E348D1036D for ; Tue, 25 Nov 2025 23:39:43 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4dGK0s3Dsdz2yrT; Wed, 26 Nov 2025 10:39:41 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2600:3c0a:e001:78e:0:1991:8:25" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1764113981; cv=none; b=kFma5SH+ms2uniX1igk17m4WygZK0zEYXUc62Rfd9VW0Nk0gISzRcKSq9PfGv4Ojka6KQfLT+pL1OO3dcktK9tRBng+aeKSpI8L5LbA5n/8Brl5z5UTiHdEonhygYc/t8LFTvSGiVzB4b6uLqFhjSh9oRvqRK0I+29nt+PM8Xtsa0Ph96yWBMo+6h109DRP99WMBAgg4VcGspUDsC9GRLrfx0dycf4k2q3LwLPQva46bsTuCVelg7EVuGUxzrpSyMRan9zSPX0SUPSqStqB66Vo8HUs1Z0cuiKAwkfiHbNLlTm463dwb8jlzYFUpVPDNTzoPGdZ/CuyBjVil56uUsg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1764113981; c=relaxed/relaxed; bh=ClFBMXYAL6JxWmmn/i2/+qJdyEpLGoepwkN+oBGG9O0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=A+Yh1lUCXXDzMeVdTH6aspJC/AjWt6G9QZ8syF+btTDoTMv/9wNQ/NORf2NoKP0eCn3EorBNukWl6mqljusFBbhGdW8CElF5vmhLmvito8LXIUJC4nIAgV3zLj/d1ZnKvmmz2Rvj/ldv7IgwRU2oMk0cPQTJkrT7ao+J6uTnqFIQUnWQZNlrulFRh/NKImbYs7FHY1MrUdOfZrgj/fXSPBhNrd7T6n3y8TbBkROmDoxa46foaXasGnO5l9eNOjB/kaVr0OX1EgmaCi3hjSPfEH3FA7uMcwJ3gnYzQm4NMnx42GnkF74MojCW+V1/Xnp9lR5N0q8G+6KAnr3QFzQyPw== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=fo9Y0U51; dkim-atps=neutral; spf=pass (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=nathan@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=fo9Y0U51; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=nathan@kernel.org; receiver=lists.ozlabs.org) Received: from sea.source.kernel.org (sea.source.kernel.org [IPv6:2600:3c0a:e001:78e:0:1991:8:25]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4dGK0r4RZpz2yr9 for ; Wed, 26 Nov 2025 10:39:40 +1100 (AEDT) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 469D34358B; Tue, 25 Nov 2025 23:39:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E5A87C4CEF1; Tue, 25 Nov 2025 23:39:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764113978; bh=ClFBMXYAL6JxWmmn/i2/+qJdyEpLGoepwkN+oBGG9O0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fo9Y0U510eeY9Owy5sGr6cr6Y8LIZtk/qgaHOEkt1FA5sqyU/AwFQzNCrlJHiwCVj pyWyscKsYOUdIL6gEvVCwm1YmMnwXcY6PtaJR+nO2YNNiHhL1hYAzWUdkHjO8Gq9PH v1kqzY3nW8957I1Aa//pCdWq6F/FRcWd6DxFwUcaYDEA5c7P/2ywGEOzM9BU5qJCYL epQKHgTyNxeUTKhkIEEaFYwbUVP+F7ckvkP5uRS41aPB/l3dYirWZ07zSj+mFt59iS Gun7GEjwwRFArz8pAlSDHgjihN6ycWPQwBR97ogkMJo5Sr8CW+HLawe/GQXrC4zg4g CQpMuCTT31hcw== Date: Tue, 25 Nov 2025 16:39:33 -0700 From: Nathan Chancellor To: "Christophe Leroy (CS GROUP)" Cc: Thomas Gleixner , kernel test robot , llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, x86@kernel.org, Ingo Molnar , "Peter Zijlstra (Intel)" , Mathieu Desnoyers , linuxppc-dev@lists.ozlabs.org Subject: Re: [tip:core/rseq 25/39] include/linux/rseq_entry.h:132:3: error: invalid operand for instruction Message-ID: <20251125233933.GA1102709@ax162> References: <202511250134.i0Jm8d7I-lkp@intel.com> <874iqji6n1.ffs@tglx> <897c6ba7-e27d-4170-be56-4d0f544bfa42@kernel.org> <20251125231834.GA4012217@ax162> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251125231834.GA4012217@ax162> On Tue, Nov 25, 2025 at 04:18:34PM -0700, Nathan Chancellor wrote: > That avoids the error for me. I notice that this does not reproduce > beyond clang-16 for me so I am going to bisect LLVM to see what fixes > this error. Oh, it is because of commit e2ffa15b9baa ("kbuild: Disable CC_HAS_ASM_GOTO_OUTPUT on clang < 17"). Prior to that change, all supported versions of clang would use the CONFIG_CC_HAS_ASM_GOTO_OUTPUT blocks in arch/powerpc/include/asm/uaccess.h, whereas now clang-15 and clang-16 will use the variants without asm goto with outputs. Cheers, Nathan