linux-kernel - Re: [PATCH 01/11] linux/time64.h:Introduce the 'struct itimerspec64' for 64bit

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Date:	Mon, 20 Apr 2015 21:14:04 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Baolin Wang <baolin.wang@...aro.org>
cc:	arnd@...db.de, john.stultz@...aro.org, heenasirwani@...il.com,
	pang.xunlei@...aro.org, peterz@...radead.org,
	rafael.j.wysocki@...el.com, gregkh@...uxfoundation.org,
	richardcochran@...il.com, benh@...nel.crashing.org,
	paulus@...ba.org, mpe@...erman.id.au, schwidefsky@...ibm.com,
	heiko.carstens@...ibm.com, linux390@...ibm.com, rth@...ddle.net,
	riel@...hat.com, cl@...ux.com, tj@...nel.org, fweisbec@...il.com,
	ahh@...gle.com, pjt@...gle.com, linuxppc-dev@...ts.ozlabs.org,
	linux-s390@...r.kernel.org, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	y2038@...ts.linaro.org
Subject: Re: [PATCH 01/11] linux/time64.h:Introduce the 'struct itimerspec64'
 for 64bit

On Mon, 20 Apr 2015, Baolin Wang wrote:
> This patch introduces the 'struct itimerspec64' for 64bit to replace itimerspec,
> and also introduces the conversion methods: itimerspec64_to_itimerspec() and
> itimerspec_to_itimerspec64(), that makes itimerspec to ready for 2038 year.
> 
> Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
> ---
>  include/linux/time64.h |   13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/include/linux/time64.h b/include/linux/time64.h
> index a383147..3647bdd 100644
> --- a/include/linux/time64.h
> +++ b/include/linux/time64.h
> @@ -18,6 +18,11 @@ struct timespec64 {
>  };
>  #endif
>  
> +struct itimerspec64 {
> +	struct timespec64 it_interval;  /* timer period */
> +	struct timespec64 it_value;     /* timer expiration */
> +};
> +
>  /* Parameters used to convert the timespec values: */
>  #define MSEC_PER_SEC	1000L
>  #define USEC_PER_MSEC	1000L
> @@ -187,4 +192,12 @@ static __always_inline void timespec64_add_ns(struct timespec64 *a, u64 ns)
>  
>  #endif
>  
> +#define itimerspec64_to_itimerspec(its64) \

> +#define itimerspec_to_itimerspec64(its) \

1.) Make these static inlines please. These macros are not typesafe.

2.) Use pointers to the input value.

Thanks.

	tglx
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