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From: Thomas Gleixner <tglx@linutronix.de>
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To: John Stultz <jstultz@google.com>
Cc: LKML <linux-kernel@vger.kernel.org>, netdev@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>, Thomas
 =?utf-8?Q?Wei=C3=9Fschuh?= <thomas.weissschuh@linutronix.de>, Kurt
 Kanzenbach
 <kurt@linutronix.de>, Nam Cao <namcao@linutronix.de>, Antoine Tenart
 <atenart@kernel.org>
Subject: Re: [patch V2 17/26] timekeeping: Provide time getters for
 auxiliary clocks
In-Reply-To: <CANDhNCoW3whgp1ZW=Fpw6mFgbYowue2H_RR_Y9UYCTLstLJDrA@mail.gmail.com>
References: <20250519082042.742926976@linutronix.de>
 <20250519083026.655171665@linutronix.de>
 <CANDhNCoW3whgp1ZW=Fpw6mFgbYowue2H_RR_Y9UYCTLstLJDrA@mail.gmail.com>
Date: Sat, 14 Jun 2025 09:18:17 +0200
Message-ID: <874iwipz9i.ffs@tglx>
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On Fri, Jun 13 2025 at 19:51, John Stultz wrote:
> On Mon, May 19, 2025 at 1:33=E2=80=AFAM Thomas Gleixner <tglx@linutronix.=
de> wrote:
>> +/**
>> + * ktime_get_aux - Get TAI time for a AUX clock
>
> Is this actually the TAI time? Wouldn't it be the MONOTONIC time for
> the AUX clock?

Of course not TAI. It's not monotonic either as it can be set. It's just
AUX clock time, whatever that means :)

>> + * @id:        ID of the clock to read (CLOCK_AUX...)
>> + * @kt:        Pointer to ktime_t to store the time stamp
>> + *
>> + * Returns: True if the timestamp is valid, false otherwise
>> + */
>> +bool ktime_get_aux(clockid_t id, ktime_t *kt)
>> +{
>> +       struct tk_data *tkd =3D aux_get_tk_data(id);
>> +       struct timekeeper *tk;
>
> Nit: Just to be super explicit, would it be good to name these aux_tk
> and aux_tkd?
> So it's more clear you're not working with the standard timekeeper?

Yes.