linux-kernel - Re: [RFC PATCH 0/3] Clean up x86 CPU feature setup

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Message-Id: <200704211141.16589.ak@suse.de>
Date:	Sat, 21 Apr 2007 11:41:16 +0200
From:	Andi Kleen <ak@...e.de>
To:	Chuck Ebbert <cebbert@...hat.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 0/3] Clean up x86 CPU feature setup

On Saturday 21 April 2007 00:49:48 Chuck Ebbert wrote:
> x86 CPU feature flag setup has become impossible to debug.
> Every user just does set_bit()/clear_bit() or writes the
> entire set to change the flags, so there's no way to trace
> how they're being set.

Just use grep or printk? It is not *that* complicated. 

> This patchset creates an API and debug messages for tracking
> how the flags get set. It's not nearly done, but I want to
> know whether or not to continue.

I don't see any particular value. In theory we could add a "debug API"
for nearly everything, but in practice it is usually not needed.
Like here.

-Andi
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