From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1752581AbcLGLtc (ORCPT <rfc822;w@1wt.eu>);
        Wed, 7 Dec 2016 06:49:32 -0500
Received: from Galois.linutronix.de ([146.0.238.70]:42681 "EHLO
        Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1751685AbcLGLt2 (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Wed, 7 Dec 2016 06:49:28 -0500
Date: Wed, 7 Dec 2016 12:46:12 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: Pavel Machek <pavel@ucw.cz>
cc: Len Brown <lenb@kernel.org>, x86@kernel.org,
        linux-kernel@vger.kernel.org, Len Brown <len.brown@intel.com>
Subject: Re: [PATCH 2/5] x86: remove idle_notifier
In-Reply-To: <20161206165420.GA4406@amd>
Message-ID: <alpine.DEB.2.20.1612071243410.3448@nanos>
References: <ad6a044e57cc75f44cc8621abe846e58f7882243.1479449716.git.len.brown@intel.com> <f15385a82ec4bf51f4f06777193d83f03b28cfdd.1479449716.git.len.brown@intel.com> <20161206165420.GA4406@amd>
User-Agent: Alpine 2.20 (DEB 67 2015-01-07)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Tue, 6 Dec 2016, Pavel Machek wrote:
> > From: Len Brown <len.brown@intel.com>
> > 
> > Upon removal of the i7300_idle driver, the idle_notifer is unused.
> 
> Actually... do we want to keep this this one? There's "cpu is loaded"
> led trigger, which is implemented on arm but not on x86.
> 
> I tried to patch process.c, but this would be easier (and does not
> require new hooks).
> 
> Does that make sense?

No. Notifiers are crap.

I assume this LED thing is just for entertainment purposes as I cannot
figure out why it would be useful. ARM has it does not qualify as useful.

Thanks,

	tglx