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From: Thomas Gleixner <tglx@linutronix.de>
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To: Thomas =?utf-8?Q?Wei=C3=9Fschuh?= <thomas.weissschuh@linutronix.de>,
 Andy Lutomirski
 <luto@kernel.org>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Shuah
 Khan <shuah@kernel.org>, Anna-Maria Behnsen <anna-maria@linutronix.de>,
 Frederic Weisbecker <frederic@kernel.org>, John Stultz
 <jstultz@google.com>, Stephen Boyd <sboyd@kernel.org>, Catalin Marinas
 <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Arnd Bergmann
 <arnd@arndb.de>
Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
 linux-arm-kernel@lists.infradead.org, linux-arch@vger.kernel.org, Richard
 Cochran <richardcochran@gmail.com>, Christopher Hall
 <christopher.s.hall@intel.com>, Frederic Weisbecker <frederic@kernel.org>,
 Anna-Maria Behnsen <anna-maria@linutronix.de>, Miroslav Lichvar
 <mlichvar@redhat.com>, Werner Abt <werner.abt@meinberg-usa.com>, David
 Woodhouse <dwmw2@infradead.org>, Stephen Boyd <sboyd@kernel.org>, Kurt
 Kanzenbach <kurt@linutronix.de>, Nam Cao <namcao@linutronix.de>, Antoine
 Tenart <atenart@kernel.org>, Thomas =?utf-8?Q?Wei=C3=9Fschuh?=
 <thomas.weissschuh@linutronix.de>
Subject: Re: [PATCH 11/14] vdso/vsyscall: Update auxiliary clock data in the
 datapage
In-Reply-To: <20250701-vdso-auxclock-v1-11-df7d9f87b9b8@linutronix.de>
References: <20250701-vdso-auxclock-v1-0-df7d9f87b9b8@linutronix.de>
 <20250701-vdso-auxclock-v1-11-df7d9f87b9b8@linutronix.de>
Date: Mon, 07 Jul 2025 08:57:54 +0200
Message-ID: <877c0ksd1p.ffs@tglx>
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On Tue, Jul 01 2025 at 10:58, Thomas Wei=C3=9Fschuh wrote:
>=20=20
> +#if defined(CONFIG_GENERIC_TIME_VSYSCALL) && defined(CONFIG_GENERIC_GETT=
IMEOFDAY) && \
> +	defined(CONFIG_POSIX_AUX_CLOCKS)

CONFIG_GENERIC_GETTIMEOFDAY requires CONFIG_GENERIC_TIME_VSYSCALL, but
that's not expressed anywhere. This stuff has grown too many config
options over time:

GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO, GENERIC_VDSO_DATA_STORE

All architectures except SPARC64 use the generic code and the generic
VDSO data store implementation. That config maze wants to be
consolidated.