linux-kernel - Re: [PATCH update 2] SCSI: explain the hidden scsi_wait

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Message-ID: <20090622110229.GR19977@parisc-linux.org>
Date:	Mon, 22 Jun 2009 05:02:30 -0600
From:	Matthew Wilcox <matthew@....cx>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Stefan Richter <stefanr@...6.in-berlin.de>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	Sam Ravnborg <sam@...nborg.org>,
	Changli Gao <xiaosuo@...il.com>, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org
Subject: Re: [PATCH update 2] SCSI: explain the hidden scsi_wait_scan
	Kconfig variable

On Mon, Jun 22, 2009 at 09:57:01AM +0100, Alan Cox wrote:
> On Thu, 18 Jun 2009 21:03:23 +0200 (CEST)
> Stefan Richter <stefanr@...6.in-berlin.de> wrote:
> 
> > People keep sending patches to expose CONFIG_SCSI_WAIT_SCAN as a tunable
> > item.  These patches aren't accepted upstream, so let's stop the ongoing
> > irritation of people due to the unconditionally installed module and its
> > Kconfig symbol.
> 
> How about the other possibility. People keepmaking it tunable because it
> makes sense for it to be tunable. Far better IMHO to make it tunable "if
> EMBEDDED"

It doesn't make sense for it to be tunable.

All it does is control whether or not scsi_wait_scan.ko is built.
Everyone who's complained about it has been of the form "I turned off
all modules, but this module gets built anyway".  For them, the answer
is simple: Don't run "make modules_install".

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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