linux-kernel - Re: [PATCH 1/5] ntp/pps: use timespec64 for hardpps()

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Message-ID: <alpine.DEB.2.11.1509300920020.4500@nanos>
Date:	Wed, 30 Sep 2015 09:20:21 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Arnd Bergmann <arnd@...db.de>
cc:	y2038@...ts.linaro.org, John Stultz <john.stultz@...aro.org>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Rodolfo Giometti <giometti@...eenne.com>,
	linux-net-drivers@...arflare.com,
	Shradha Shah <sshah@...arflare.com>,
	Richard Cochran <richardcochran@...il.com>
Subject: Re: [PATCH 1/5] ntp/pps: use timespec64 for hardpps()

On Mon, 28 Sep 2015, Arnd Bergmann wrote:

> There is only one user of the hardpps function in the kernel, so
> it makes sense to atomically change it over to using 64-bit
> timestamps for y2038 safety. In the hardpps implementation,
> we also need to change the pps_normtime structure, which is
> similar to struct timespec and also requires a 64-bit
> seconds portion.
> 
> This introduces two temporary variables in pps_kc_event() to
> do the conversion, they will be removed again in the next step,
> which seemed preferable to having a larger patch changing it
> all at the same time.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
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