linux-kernel - Re: [PATCH] Use separate sections for __dev/__cpu/_

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Date:	Tue, 22 Jan 2008 13:17:15 -0800
From:	Greg KH <greg@...ah.com>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
	linux-arch@...r.kernel.org, Randy Dunlap <randy.dunlap@...cle.com>,
	Adrian Bunk <bunk@...nel.org>
Subject: Re: [PATCH] Use separate sections for __dev/__cpu/__mem code/data

On Sun, Jan 20, 2008 at 09:09:03PM +0100, Sam Ravnborg wrote:
> Introducing separate sections for __dev* (HOTPLUG),
> __cpu* (HOTPLUG_CPU) and __mem* (MEMORY_HOTPLUG)
> allows us to do a much more reliable Section mismatch
> check in modpost. We are no longer dependent on the actual
> configuration of for example HOTPLUG.
> 
> This has the effect that all users see much more
> Section mismatch warnings than before because they
> were almost all hidden when HOTPLUG was enabled.
> The advantage of this is that when building a piece
> of code then it is much more likely that the Section
> mismatch errors are spotted and the warnings will be
> felt less random of nature.
> 
> Signed-off-by: Sam Ravnborg <sam@...nborg.org>
> Cc: Greg KH <greg@...ah.com>
> Cc: Randy Dunlap <randy.dunlap@...cle.com>
> Cc: Adrian Bunk <bunk@...nel.org>

I like this a lot.  It makes things much more understandable from a
driver developer's point of view, and would allow us to mark some things
as freeable when we do not run with a CPU hotplug system :)

Feel free to add a:
	Acked-by: Greg Kroah-Hartman <gregkh@...e.de>
to the patch, if you want to take it in your tree.

thanks,

greg k-h
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