From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from outpost1.zedat.fu-berlin.de (outpost1.zedat.fu-berlin.de [130.133.4.66]) (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 2C1927B3E1; Sun, 21 Sep 2025 05:10:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=130.133.4.66 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758431441; cv=none; b=riGjHKyJrzvmwe1Qm6b3xDUaAZDHQSGLMDFu8qdOFS1kt1SBXsSR0RpeO22uHXU40hUiS1Ty23YrphlTRv7hO/Yq9ryEW17ljeefe/sBOswrHRUDRIAQGH3EkcsWDSy0iadxLk9mP3/i4jRdvSeAoVlorGLcbzfySV5BuAdIdS0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758431441; c=relaxed/simple; bh=w9oZ1uNQV8PhWrk7R2+HhaHhimhUFnbPVXpj77GRNI8=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=mGwcxW+TdciW/U8kLvuG1c7HsAJVYFcniIUaVufUyoayCpWhN/gBDMmfxEvtJHxdsWm0pQ5eM+4Cbq82JJakp7pIWqLDuq/bcPvrFiF9M4JDrXFAuwjcL0AwYyVunwXGbNxmL3l7c9yvXgeH2a/OGIfSXojPOo+YMN9dDLG+9Jc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=physik.fu-berlin.de; spf=pass smtp.mailfrom=zedat.fu-berlin.de; dkim=pass (2048-bit key) header.d=fu-berlin.de header.i=@fu-berlin.de header.b=TfSXBXHn; arc=none smtp.client-ip=130.133.4.66 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=physik.fu-berlin.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zedat.fu-berlin.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=fu-berlin.de header.i=@fu-berlin.de header.b="TfSXBXHn" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=fu-berlin.de; s=fub01; h=MIME-Version:Content-Transfer-Encoding: Content-Type:References:In-Reply-To:Date:Cc:To:From:Subject:Message-ID:From: Reply-To:Subject:Date:Message-ID:To:Cc:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:In-Reply-To: References; bh=NvoDm3rY6iriVEHdymAWHHxK+7OKvhuVhhBYM9dD7Fk=; t=1758431439; x=1759036239; b=TfSXBXHnlva/4cZood1ATYlgO/P9Xe/U8IcZnesM0Oa3xsyaeUFw3pHprF8ze 9SiLK8l2uMm7E2N/El1HrO65XGu7L+BlpJWXdA0nY5wmjH6r/rpFRCp6FGnH2LvokMF4VaBNupViy hVXkNXD51/zzm2g+UlgVcbs6XQeWJlL3msaDOzy8p7h0RGARVq8aE80MABwibXT9pl98WBPeh4RzU ShwfPmpxKqG17oyiM0BH7EyjSJX5pI4gYj25ROHlOoKKPVYywSH0ilY1qdchRki+yoH26lDYmaZMy MbNfFC0qPTPOwwOo9KEYiJkLMR6PMXp4YphQQNja+xkTm5/k0g==; Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost.zedat.fu-berlin.de (Exim 4.98) with esmtps (TLS1.3) tls TLS_AES_256_GCM_SHA384 (envelope-from ) id 1v0CGh-00000000RZV-2NJn; Sun, 21 Sep 2025 07:05:47 +0200 Received: from dynamic-002-245-016-030.2.245.pool.telefonica.de ([2.245.16.30] helo=[192.168.178.50]) by inpost2.zedat.fu-berlin.de (Exim 4.98) with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (envelope-from ) id 1v0CGh-00000002SmM-0yJw; Sun, 21 Sep 2025 07:05:47 +0200 Message-ID: <9198795c08a6c3d448bbcbdfe620ada792af8dd3.camel@physik.fu-berlin.de> Subject: Re: [PATCH v3 00/36] sparc64: vdso: Switch to the generic vDSO library From: John Paul Adrian Glaubitz To: Thomas =?ISO-8859-1?Q?Wei=DFschuh?= Cc: Andy Lutomirski , Thomas Gleixner , Vincenzo Frascino , Arnd Bergmann , "David S. Miller" , Andreas Larsson , Nick Alcock , John Stultz , Stephen Boyd , Shuah Khan , Catalin Marinas , Will Deacon , Theodore Ts'o , "Jason A. Donenfeld" , Russell King , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Nagarathnam Muthusamy , Shannon Nelson , linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linux-s390@vger.kernel.org, Arnd Bergmann Date: Sun, 21 Sep 2025 07:05:44 +0200 In-Reply-To: <48fd164e-959b-4263-b3c7-cef5771aa40a@linutronix.de> References: <20250917-vdso-sparc64-generic-2-v3-0-3679b1bc8ee8@linutronix.de> <9a122c6cf3e2e0e61a62b0512eb97804acebeee9.camel@physik.fu-berlin.de> <48fd164e-959b-4263-b3c7-cef5771aa40a@linutronix.de> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2 Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Original-Sender: glaubitz@physik.fu-berlin.de X-ZEDAT-Hint: PO Hi Thomas, On Sat, 2025-09-20 at 16:37 +0200, Thomas Wei=C3=9Fschuh wrote: > Sep 20, 2025 15:25:11 John Paul Adrian Glaubitz : >=20 > > On Wed, 2025-09-17 at 16:00 +0200, Thomas Wei=C3=9Fschuh wrote: > > > The generic vDSO provides a lot common functionality shared between > > > different architectures. SPARC is the last architecture not using it, > > > preventing some necessary code cleanup. > > >=20 > > > Make use of the generic infrastructure. > > >=20 > > > Follow-up to and replacement for Arnd's SPARC vDSO removal patches: > > > https://lore.kernel.org/lkml/20250707144726.4008707-1-arnd@kernel.org= / > > >=20 > > > Tested on a Niagara T4 and QEMU. > > >=20 > > > This has a semantic conflict with my series "vdso: Reject absolute > > > relocations during build". The last patch of this series expects all = users > > > of the generic vDSO library to use the vdsocheck tool. > > > This is not the case (yet) for SPARC64. I do have the patches for the > > > integration, the specifics will depend on which series is applied fir= st. > > >=20 > > > Based on tip/timers/vdso. > >=20 > > Could you share a version of the series based on top of 6.17.0-rcN for > > testing purposes? I would like to test the series on a Sun Netra 240 > > which is based on the UltraSPARC IIIi. >=20 > Here is the git branch based on rc4: > https://git.kernel.org/pub/scm/linux/kernel/git/thomas.weissschuh/linux.g= it/log/?h=3Db4/vdso-sparc64-generic-2 >=20 > Does that work for you? Thanks, I'll give it a try. > Thanks for testing! Of course, I want to make sure the kernel stays working on these machines a= nd you're introducing large changes. Adrian --=20 .''`. John Paul Adrian Glaubitz : :' : Debian Developer `. `' Physicist `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913