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From: Thomas Gleixner <tglx@linutronix.de>
To: Ondrej Mosnacek <omosnace@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
	y2038 Mailman List <y2038@lists.linaro.org>,
	John Stultz <john.stultz@linaro.org>,
	Paul Moore <paul@paul-moore.com>,
	Stephen Smalley <sds@tycho.nsa.gov>,
	Eric Paris <eparis@parisplace.org>,
	Linux kernel mailing list <linux-kernel@vger.kernel.org>,
	Stephen Boyd <sboyd@kernel.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Ingo Molnar <mingo@kernel.org>,
	Anna-Maria Gleixner <anna-maria@linutronix.de>,
	Al Viro <viro@zeniv.linux.org.uk>,
	SElinux list <selinux@vger.kernel.org>
Subject: Re: [PATCH 20/23] y2038: move itimer reset into itimer.c
Date: Thu, 14 Nov 2019 11:51:52 +0100 (CET)	[thread overview]
Message-ID: <alpine.DEB.2.21.1911141149050.2507@nanos.tec.linutronix.de> (raw)
In-Reply-To: <CAFqZXNu4Tk4H3b_FS8=EA5QMi10kEgT22uD=61aDryHp-fXnig@mail.gmail.com>

On Thu, 14 Nov 2019, Ondrej Mosnacek wrote:
> On Mon, Nov 11, 2019 at 11:58 AM Arnd Bergmann <arnd@arndb.de> wrote:
> > I don't see that as a problem, we rarely put declarations inside of an #ifdef.
> > The main effect that would have is forcing any file that includes linux/time.h
> > to be rebuilt when selinux is turned on or off in the .config.
> 
> OK, but with this patch if someone tries to use the function
> elsewhere, the build will succeed if SELinux is enabled in the config,
> but fail if it isn't.  Is that intended?  I would suggest at least
> clearly documenting it above the declaration that the function isn't
> supposed to be used by new users and doing so will cause build to fail
> under CONFIG_SECURITY_SELINUX=n.

Come on. We have enough functions in the kernel which are only available
under a certain config option and if you (ab)use them elsewhere then the
build fails. So what?

The #ifdef documents the limited scope and intended use clearly. If
something else really needs that function, then removing the #ifdef
shouldn't be rocket science either.

Thanks,

	tglx

  reply	other threads:[~2019-11-14 10:52 UTC|newest]

Thread overview: 124+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-08 21:02 [PATCH 00/23] y2038 cleanups Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:02 ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 01/23] y2038: remove CONFIG_64BIT_TIME Arnd Bergmann
2019-11-20 22:28   ` [Y2038] " Ben Hutchings
2019-11-20 22:58     ` Dmitry Safonov
2019-11-08 21:07 ` [PATCH 02/23] y2038: add __kernel_old_timespec and __kernel_old_time_t Arnd Bergmann
2019-11-09 19:02   ` Deepa Dinamani
2019-11-20 22:30   ` [Y2038] " Ben Hutchings
2019-11-21 14:17     ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 03/23] y2038: vdso: change timeval to __kernel_old_timeval Arnd Bergmann
2019-11-08 21:07   ` Arnd Bergmann
2019-11-08 21:07   ` Arnd Bergmann
2019-11-08 21:07   ` Arnd Bergmann
2019-11-13 21:56   ` Thomas Gleixner
2019-11-13 21:56     ` Thomas Gleixner
2019-11-13 21:56     ` Thomas Gleixner
2019-11-13 21:56     ` Thomas Gleixner
2019-11-08 21:07 ` [PATCH 04/23] y2038: vdso: change timespec to __kernel_old_timespec Arnd Bergmann
2019-11-08 21:07   ` Arnd Bergmann
2019-11-08 21:07   ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 05/23] y2038: vdso: change time_t to __kernel_old_time_t Arnd Bergmann
2019-11-08 21:07   ` Arnd Bergmann
2019-11-13 21:57   ` Thomas Gleixner
2019-11-13 21:57     ` Thomas Gleixner
2019-11-08 21:07 ` [PATCH 06/23] y2038: vdso: nds32: open-code timespec_add_ns() Arnd Bergmann
2019-11-08 21:07 ` [PATCH 07/23] y2038: vdso: powerpc: avoid timespec references Arnd Bergmann
2019-11-08 21:07   ` Arnd Bergmann
2019-11-20 22:43   ` [Y2038] " Ben Hutchings
2019-11-20 22:43     ` Ben Hutchings
2019-11-21 14:23     ` Arnd Bergmann
2019-11-21 14:23       ` Arnd Bergmann
2019-11-21 16:25       ` Christophe Leroy
2019-11-21 16:25         ` Christophe Leroy
2019-11-27 11:03         ` Arnd Bergmann
2019-11-27 11:03           ` Arnd Bergmann
2019-12-02 12:55           ` Christophe Leroy
2019-12-02 12:55             ` Christophe Leroy
2019-12-02 14:03             ` Arnd Bergmann
2019-12-02 14:03               ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 08/23] y2038: ipc: remove __kernel_time_t reference from headers Arnd Bergmann
2019-11-08 21:07   ` Arnd Bergmann
2019-11-08 21:07   ` Arnd Bergmann
2019-11-20 22:49   ` [Y2038] " Ben Hutchings
2019-11-20 22:49     ` Ben Hutchings
2019-11-20 22:49     ` Ben Hutchings
2019-11-21 14:28     ` [Y2038] " Arnd Bergmann
2019-11-21 14:28       ` Arnd Bergmann
2019-11-21 14:28       ` Arnd Bergmann
2019-11-21 14:28       ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 09/23] y2038: stat: avoid 'time_t' in 'struct stat' Arnd Bergmann
2019-11-08 21:07   ` Arnd Bergmann
2019-11-08 21:07   ` Arnd Bergmann
2019-11-08 21:12 ` [PATCH 10/23] y2038: uapi: change __kernel_time_t to __kernel_old_time_t Arnd Bergmann
2019-11-09 19:03   ` Deepa Dinamani
2019-11-11 12:38   ` Christian Brauner
2019-11-08 21:12 ` [PATCH 11/23] y2038: rusage: use __kernel_old_timeval Arnd Bergmann
2019-11-12 21:09   ` Cyrill Gorcunov
2019-11-13 10:02     ` Arnd Bergmann
2019-11-13 17:22       ` Cyrill Gorcunov
2019-11-14  0:38       ` Christian Brauner
2019-11-14  0:38         ` Christian Brauner
2019-11-14 10:18         ` Arnd Bergmann
2019-11-14 10:23           ` Christian Brauner
2019-11-08 21:12 ` [PATCH 12/23] y2038: syscalls: change remaining timeval to __kernel_old_timeval Arnd Bergmann
2019-11-08 21:12   ` Arnd Bergmann
2019-11-11 12:44   ` Christian Brauner
2019-11-11 12:44     ` Christian Brauner
2019-11-11 12:44     ` Christian Brauner
2019-11-13 22:39   ` Rafael J. Wysocki
2019-11-13 22:39     ` Rafael J. Wysocki
2019-11-08 21:12 ` [PATCH 13/23] y2038: socket: remove timespec reference in timestamping Arnd Bergmann
2019-11-09 19:03   ` Deepa Dinamani
2019-11-11 20:24   ` Arnd Bergmann
2019-11-08 21:12 ` [PATCH 14/23] y2038: make ns_to_compat_timeval use __kernel_old_timeval Arnd Bergmann
2019-11-08 21:12 ` [PATCH 15/23] y2038: elfcore: Use __kernel_old_timeval for process times Arnd Bergmann
2019-11-08 21:12 ` [PATCH 16/23] y2038: timerfd: Use timespec64 internally Arnd Bergmann
2019-11-13 21:49   ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 17/23] y2038: time: avoid timespec usage in settimeofday() Arnd Bergmann
2019-11-13 21:53   ` Thomas Gleixner
2019-11-14 11:06     ` Arnd Bergmann
2019-11-14 11:06       ` Arnd Bergmann
2019-11-14 14:04       ` Thomas Gleixner
2019-11-14 14:04         ` Thomas Gleixner
2019-11-14 14:35         ` Arnd Bergmann
2019-11-14 23:01   ` Abel Vesa
2019-11-15  7:58     ` Arnd Bergmann
2019-11-15 10:27       ` Rasmus Villemoes
2019-11-15 13:50         ` Arnd Bergmann
2019-11-08 21:12 ` [PATCH 18/23] y2038: itimer: compat handling to itimer.c Arnd Bergmann
2019-11-13 21:54   ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 19/23] y2038: use compat_{get,set}_itimer on alpha Arnd Bergmann
2019-12-02 13:13   ` Guenter Roeck
2019-11-08 21:12 ` [PATCH 20/23] y2038: move itimer reset into itimer.c Arnd Bergmann
2019-11-09 13:43   ` Ondrej Mosnacek
2019-11-09 21:02     ` Arnd Bergmann
2019-11-09 23:07       ` Ondrej Mosnacek
2019-11-11 10:57         ` Arnd Bergmann
2019-11-14  8:51           ` Ondrej Mosnacek
2019-11-14 10:51             ` Thomas Gleixner [this message]
2019-11-13 22:03   ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 21/23] y2038: itimer: change implementation to timespec64 Arnd Bergmann
2019-11-13 22:28   ` Thomas Gleixner
2019-11-14  2:06     ` Steven Rostedt
2019-11-14 10:48       ` Thomas Gleixner
2019-11-14 10:52       ` Arnd Bergmann
2019-11-14 10:51     ` Arnd Bergmann
2019-11-14 10:57       ` Thomas Gleixner
2019-11-21 16:52   ` [Y2038] " Ben Hutchings
2019-11-25 20:26     ` Arnd Bergmann
2019-11-08 21:12 ` [PATCH 22/23] [RFC] y2038: itimer: use ktime_t internally Arnd Bergmann
2019-11-13 22:30   ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 23/23] y2038: allow disabling time32 system calls Arnd Bergmann
2019-11-11 12:31   ` Christian Brauner
2019-11-13 21:40 ` [PATCH 00/23] y2038 cleanups Arnd Bergmann
2019-11-13 21:40   ` Arnd Bergmann
2019-11-13 21:40   ` Arnd Bergmann
2019-11-13 21:40   ` Arnd Bergmann
2019-11-13 21:40   ` Arnd Bergmann
2019-11-13 21:40   ` Arnd Bergmann

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