linux-kernel - Re: [PATCH 2/5] USB Kconfig: Select SCSI for USB Mass Storage support

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Date:	Sun, 6 Jan 2008 12:11:43 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	david@...g.hm
cc:	Stefan Richter <stefanr@...6.in-berlin.de>,
	Adrian Bunk <bunk@...nel.org>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Sam Ravnborg <sam@...nborg.org>, Al Boldi <a1426z@...ab.com>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	David Brownell <david-b@...bell.net>, Greg KH <greg@...ah.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 2/5] USB Kconfig: Select SCSI for USB Mass Storage support

On Sun, 6 Jan 2008 david@...g.hm wrote:

> what sysadmins like me would really like is a set of scripts that could 
> generate a .config from an existing system. After we have one that covers 
> the hardware for the system we will then have a much better starting point 
> to work from. We may disable some drivers (sound drivers on a server for 
> example).

One thing is worth pointing out here.  If you do remove some drivers 
(like usb-storage), you may end up with a bloated configuration because 
the things they selected (like SCSI) won't get removed automatically.  
That's a disadvantage of using select.

Another disadvantage appears when somebody tries by hand to remove a 
component (like SCSI) and finds that it magically reappears.  Evidently 
something is selecting it, but there's no way to find out what.

Alan Stern

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