linux-kernel - Re: [PATCH v3 00/36] sparc64: vdso: Switch to the generic vDSO library

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Message-ID: <9a122c6cf3e2e0e61a62b0512eb97804acebeee9.camel@physik.fu-berlin.de>
Date: Sat, 20 Sep 2025 15:24:51 +0200
From: John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To: Thomas Weißschuh <thomas.weissschuh@...utronix.de>, 
 Andy Lutomirski	 <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
 Vincenzo Frascino	 <vincenzo.frascino@....com>, Arnd Bergmann
 <arnd@...db.de>, "David S. Miller"	 <davem@...emloft.net>, Andreas Larsson
 <andreas@...sler.com>, Nick Alcock	 <nick.alcock@...cle.com>, John Stultz
 <jstultz@...gle.com>, Stephen Boyd	 <sboyd@...nel.org>, Shuah Khan
 <shuah@...nel.org>, Catalin Marinas	 <catalin.marinas@....com>, Will Deacon
 <will@...nel.org>, Theodore Ts'o	 <tytso@....edu>, "Jason A. Donenfeld"
 <Jason@...c4.com>, Russell King	 <linux@...linux.org.uk>, Madhavan
 Srinivasan <maddy@...ux.ibm.com>, Michael Ellerman <mpe@...erman.id.au>,
 Nicholas Piggin <npiggin@...il.com>, Christophe Leroy	
 <christophe.leroy@...roup.eu>, Huacai Chen <chenhuacai@...nel.org>, WANG
 Xuerui	 <kernel@...0n.name>, Thomas Bogendoerfer
 <tsbogend@...ha.franken.de>, Heiko Carstens <hca@...ux.ibm.com>, Vasily
 Gorbik <gor@...ux.ibm.com>, Alexander Gordeev	 <agordeev@...ux.ibm.com>,
 Christian Borntraeger <borntraeger@...ux.ibm.com>,  Sven Schnelle
 <svens@...ux.ibm.com>, Nagarathnam Muthusamy
 <nagarathnam.muthusamy@...cle.com>, Shannon Nelson	 <sln@...main.com>
Cc: linux-kernel@...r.kernel.org, sparclinux@...r.kernel.org, 
	linux-kselftest@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linuxppc-dev@...ts.ozlabs.org, loongarch@...ts.linux.dev, 
	linux-mips@...r.kernel.org, linux-s390@...r.kernel.org, Arnd Bergmann
	 <arnd@...nel.org>
Subject: Re: [PATCH v3 00/36] sparc64: vdso: Switch to the generic vDSO
 library

Hi Thomas,

On Wed, 2025-09-17 at 16:00 +0200, Thomas Weißschuh 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.
> 
> Make use of the generic infrastructure.
> 
> Follow-up to and replacement for Arnd's SPARC vDSO removal patches:
> https://lore.kernel.org/lkml/20250707144726.4008707-1-arnd@kernel.org/
> 
> Tested on a Niagara T4 and QEMU.
> 
> 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 first.
> 
> Based on tip/timers/vdso.

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.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
`. `'   Physicist
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