linux-kernel - Re: [Y2038] [PATCH V2] hp_sdc_rtc: fixed y2038 problem in proc

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Date:	Wed, 16 Sep 2015 15:55:37 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	y2038@...ts.linaro.org
Cc:	WEN Pingbo <pingbo.wen@...aro.org>, linux-input@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [Y2038] [PATCH V2] hp_sdc_rtc: fixed y2038 problem in proc_show

On Wednesday 16 September 2015 21:45:38 WEN Pingbo wrote:
> hp_sdc_rtc_proc_show() use timeval to store the time, which will
> overflowed in 2038.
> 
> This patch fixes this problem by replacing timeval with timespec64.
> hp_sdc_rtc_proc_show() only output string, so that userspace will work
> normally if we apply this patch.
> 
> Not all timer in i8042 have y2038 risk(handshake, match timer, etc),
> Replacements in those timer are just for consistency.
> 
> Version 2 Updates:
> - compiled in m68k gcc cross compiler(4.6.3), no extra warnings
> - placed s64 type cast in tv.tv_sec, making sure it work properly in
> both 32bit and 64bit platform.
> 
> Signed-off-by: WEN Pingbo <pingbo.wen@...aro.org>
> Cc: Y2038 <y2038@...ts.linaro.org>
> 

Looks very good,

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