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Date:	Wed, 05 Dec 2007 16:33:38 +0900
From:	Tejun Heo <>
To:	Sam Ravnborg <>
CC:	Linux Kernel <>,,,,
Subject: Re: [PATCH] depmod: sort output according to modules.order

Sam Ravnborg wrote:
> Hi Tejun.
> On Tue, Dec 04, 2007 at 10:55:48PM +0900, Tejun Heo wrote:
>> Kbuild now generates and installs modules.order along with modules.
>> This patch updates depmod such that it sorts module list according to
>> the file before generating output files.  Modules which aren't on
>> modules.order are put after modules which are ordered by
>> modules.order.
>> This makes modprobe to prioritize modules according to kernel
>> Makefile's just as built-in modules are link-ordered by them.
> With this change depmod require the precense of modules.order.
> Could we make it optional so depmod are backward compatible?

It is backward compatible by virtue of

+		if (errno == ENOENT)
+			return;

in sort_modules().  If the file isn't there, the list isn't sorted.

> It would also simplify the kbuild integration if depmod
> could read the modules as a space separated list where
> duplicates are allowed.
> If we do so then the is no reason to escape to the shell
> in and we do not have to remove duplicates either.

I'm no Makefile expert so no doubt my modifications are ugly.  But I
think producing a file w/ duplicates in it is just ugly.

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