linux-kernel - Re: [PATCH 0/5][RFC] Physical PCI slot objects

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Date:	Wed, 14 Nov 2007 02:07:56 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Greg KH <greg@...ah.com>
Cc:	Alex Chiang <achiang@...com>, gregkh@...e.de,
	kristen.c.accardi@...el.com, lenb@...nel.org, matthew@....cx,
	richard.jones2@...com, linux-kernel@...r.kernel.org,
	linux-pci@...ey.karlin.mff.cuni.cz,
	pcihpd-discuss@...ts.sourceforge.net, linux-acpi@...r.kernel.org
Subject: Re: [PATCH 0/5][RFC] Physical PCI slot objects

Greg KH <greg@...ah.com> writes:
>
> Also, some companies already provide userspace tools to get all of this
> information about the different slots in a system and what is where,
> from userspace, no kernel changes are needed.  So, why add all this
> extra complexity to the kernel if it is not needed?

It's not only complexity. Each new sysfs entry costs memory.
Memory is not free. There should be always a good reason for those.

-Andi
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