linux-kernel - Re: [PATCH net-next V2 04/23] ptp: blackfin: convert to the 64 bit get/set time methods.

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Message-Id: <201503220328.46415.arnd@linaro.org>
Date:	Sun, 22 Mar 2015 03:28:46 +0100
From:	Arnd Bergmann <arnd@...aro.org>
To:	Richard Cochran <richardcochran@...il.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Amir Vadai <amirv@...lanox.com>,
	Ariel Elior <ariel.elior@...gic.com>,
	Baolin Wang <baolin.wang@...aro.org>,
	Ben Hutchings <ben@...adent.org.uk>,
	Bruce Allan <bruce.w.allan@...el.com>,
	Carolyn Wyborny <carolyn.wyborny@...el.com>,
	Chris Metcalf <cmetcalf@...hip.com>,
	David Miller <davem@...emloft.net>,
	Frank Li <Frank.Li@...escale.com>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	John Stultz <john.stultz@...aro.org>,
	Luwei Zhou <b45643@...escale.com>,
	Matthew Vick <matthew.vick@...el.com>,
	Michael Chan <mchan@...adcom.com>,
	Prashant Sreedharan <prashant@...adcom.com>,
	Shradha Shah <sshah@...arflare.com>,
	Solarflare linux maintainers <linux-net-drivers@...arflare.com>,
	Sonic Zhang <sonic.zhang@...log.com>,
	Stefan Sørensen 
	<stefan.sorensen@...ctralink.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Tom Lendacky <thomas.lendacky@....com>
Subject: Re: [PATCH net-next V2 04/23] ptp: blackfin: convert to the 64 bit get/set time methods.

On Saturday 21 March 2015, Richard Cochran wrote:
> -static int bfin_ptp_gettime(struct ptp_clock_info *ptp, struct timespec *ts)
> +static int bfin_ptp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
>  {
>         u64 ns;
>         u32 remainder;

I think it would be good to replace the open-coded 

        ns = ts->tv_sec * 1000000000ULL;
        ns += ts->tv_nsec;

here with a call to ns_to_timespec64(), here and in other drivers that you
are already touching.

	Arnd
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