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Re: [PATCH] sched_clock: add data pointer argument to read callback

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  Re: [PATCH] sched_clock: add data pointer argument to read  callback Thomas Gleixner <tglx@linutronix.de> - 2015-10-11 22:50 +0200

#1244219 — Re: [PATCH] sched_clock: add data pointer argument to read callback

Mans,

On Fri, 9 Oct 2015, Mans Rullgard wrote:

> This passes a data pointer specified in the sched_clock_register()
> call to the read callback allowing simpler implementations thereof.
>
> In this patch, existing uses of this interface are simply updated
> with a null pointer.

I can't see any simplifaction of any driver. This is called in hot
pathes and that extra unused argument just adds register pressure for
no value.

What are you actually trying to solve?

Thanks,

	tglx

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