linux-kernel - Re: [PATCH] bnx2x: use ktime_get

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Message-Id: <20150911.150322.1083790165932796949.davem@davemloft.net>
Date:	Fri, 11 Sep 2015 15:03:22 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	arnd@...db.de
Cc:	netdev@...r.kernel.org, y2038@...ts.linaro.org,
	Yuval.Mintz@...gic.com, Ariel.Elior@...gic.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bnx2x: use ktime_get_seconds() for timestamp

From: Arnd Bergmann <arnd@...db.de>
Date: Fri, 11 Sep 2015 11:33:01 +0200

> commit c48f350ff5e7 "bnx2x: Add MFW dump support" added the
> bnx2x_update_mfw_dump() function that reads the current time and stores
> it in a 32-bit field that gets passed into a buffer in a fixed format.
> 
> This is potentially broken when the epoch overflows in 2038, and
> otherwise overflows in 2106. As we're trying to avoid uses of
> struct timeval for this reason, I noticed the addition of this
> function, and tried to rewrite it in a way that is more explicit
> about the overflow and that will keep working once we deprecate
> struct timeval.
> 
> I assume that it is not possible to change the ABI any more, otherwise
> we should try to use a 64-bit field for the seconds right away.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Applied, thanks.
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