netdev - Re: [PATCH v2 1/3] net: ipv4: Convert IP network timestamps to be y2038 safe

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Date:	Mon, 29 Feb 2016 17:31:11 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Deepa Dinamani <deepa.kernel@...il.com>
Cc:	netdev@...r.kernel.org, y2038@...ts.linaro.org,
	"David S. Miller" <davem@...emloft.net>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	James Morris <jmorris@...ei.org>,
	Patrick McHardy <kaber@...sh.net>
Subject: Re: [PATCH v2 1/3] net: ipv4: Convert IP network timestamps to be y2038 safe

On Saturday 27 February 2016 00:32:15 Deepa Dinamani wrote:
> ICMP timestamp messages and IP source route options require
> timestamps to be in milliseconds modulo 24 hours from
> midnight UT format.
> 
> Add inet_current_timestamp() function to support this. The function
> returns the required timestamp in network byte order.
> 
> Timestamp calculation is also changed to call ktime_get_real_ts64()
> which uses struct timespec64. struct timespec64 is y2038 safe.
> Previously it called getnstimeofday() which uses struct timespec.
> struct timespec is not y2038 safe.
> 
> Signed-off-by: Deepa Dinamani <deepa.kernel@...il.com>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Alexey Kuznetsov <kuznet@....inr.ac.ru>
> Cc: Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
> Cc: James Morris <jmorris@...ei.org>
> Cc: Patrick McHardy <kaber@...sh.net>
> 

Acked-by: Arnd Bergmann <arnd@...db.de>