netdev - Re: [patch 2/3] ptp: Use ktime_get_clock

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Message-ID: <CANDhNCoxEYtcmy9fRXOEgqZAEbanFU5A3aous=vG4aBe36Qh8g@mail.gmail.com>
Date: Thu, 26 Jun 2025 22:23:33 -0700
From: John Stultz <jstultz@...gle.com>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: LKML <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org, 
	Richard Cochran <richardcochran@...il.com>, Christopher Hall <christopher.s.hall@...el.com>, 
	Frederic Weisbecker <frederic@...nel.org>, Anna-Maria Behnsen <anna-maria@...utronix.de>, 
	Miroslav Lichvar <mlichvar@...hat.com>, Werner Abt <werner.abt@...nberg-usa.com>, 
	David Woodhouse <dwmw2@...radead.org>, Stephen Boyd <sboyd@...nel.org>, 
	Thomas Weißschuh <thomas.weissschuh@...utronix.de>, 
	Kurt Kanzenbach <kurt@...utronix.de>, Nam Cao <namcao@...utronix.de>, 
	Antoine Tenart <atenart@...nel.org>
Subject: Re: [patch 2/3] ptp: Use ktime_get_clock_ts64() for timestamping

On Thu, Jun 26, 2025 at 6:27 AM Thomas Gleixner <tglx@...utronix.de> wrote:
>
> The inlined ptp_read_system_[pre|post]ts() switch cases expand to a copious
> amount of text in drivers, e.g. ~500 bytes in e1000e. Adding auxiliary
> clock support to the inlines would increase it further.
>
> Replace the inline switch case with a call to ktime_get_clock_ts64(), which
> reduces the code size in drivers and allows to access auxiliary clocks once
> they are enabled in the IOCTL parameter filter.
>
> No functional change.
>
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>

Acked-by: John Stultz <jstultz@...gle.com>