linux-kernel - Re: [PATCH v2 2/2] powercap/rapl: reduce ipi calls

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Message-ID: <20160113221613.GW12897@pd.tnic>
Date:	Wed, 13 Jan 2016 23:16:13 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Cc:	Jacob Pan <jacob.jun.pan@...ux.intel.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux PM <linux-pm@...r.kernel.org>,
	Rafael Wysocki <rafael.j.wysocki@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
	X86 Kernel <x86@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH v2 2/2] powercap/rapl: reduce ipi calls

On Wed, Jan 13, 2016 at 01:54:43PM -0800, Srinivas Pandruvada wrote:
> regmap_update_bits(), which is referenced for 346 times.

I'm at a loss as to why people keep talking about regmap.

$ git grep regmap_update_bits arch/x86/
$

> Are you saying that any such calls are not useful?

It seems I have to repeat myself ad absurdum so let me summarize: I
don't have anything against useful APIs. Those are not.

-- 
Regards/Gruss,
    Boris.

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