linux-kernel - Re: [PATCH] s390 appldata_base: Remove module

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Date:	Thu, 23 Aug 2007 13:01:06 +0200
From:	Martin Schwidefsky <schwidefsky@...ibm.com>
To:	Satyam Sharma <satyam@...radead.org>
Cc:	Gerald Schaefer <gerald.schaefer@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] s390 appldata_base: Remove module_exit function and
	modular stuff

On Thu, 2007-08-23 at 07:51 +0530, Satyam Sharma wrote: 
> > BTW the __exit module_exit function appldata_exit() of this driver
> > fails to unregister_hotcpu_notifier() the notifier_block that was
> > registered by appldata_init() during module startup. This will lead
> > to oops if hotplug notification comes after module has been unloaded.
> > Let's fix this by unregistering the notifier appropriately (before
> > appldata_offline_cpu()'ing the CPUs).
> 
> Heh, no wonder we never saw this oops before. This code can never be
> built as a module! :-) But why does it define and implement an __exit
> marked module_exit(appldata_exit) function in that case ?!

I has been a module once for debugging purposes That the module_exit
function still exists is "historical". We can remove it since it is dead
code.

-- 
blue skies,
  Martin.

"Reality continues to ruin my life." - Calvin.


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