From: Arjan van de Ven <arjan@linux.intel.com>
To: "Robert P. J. Day" <rpjday@mindspring.com>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: does CONFIG_UNUSED_SYMBOLS have any value anymore?
Date: Thu, 19 Jul 2007 08:47:16 -0700 [thread overview]
Message-ID: <469F8784.3030700@linux.intel.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0707191133100.7047@localhost.localdomain>
Robert P. J. Day wrote:
> On Thu, 19 Jul 2007, Arjan van de Ven wrote:
>
>> Stefan Richter wrote:
>>> Robert P. J. Day wrote:
>>> ...
>>>> it's not clear if that means that it was a *one-time* transition
>>>> aid which is now unnecessary, or whether it's an *ongoing* aid which
>>>> might be used at any time. currently, there are no invocations of
>>>> EXPORT_UNUSED_SYMBOL[_GPL] anywhere in the tree. so does that mean
>>>> this feature can be tossed? or might it still be used every so often?
>> it's one of those pieces of infrastructure that get used from time
>> to time to phase out symbol exports... we should be more agressive
>> about that; about 1/3rd of the exports is not used by anything in
>> linux, yet each symbol costs about 100 bytes of memory at runtime.
>
> ok, so maybe its removal file entry should be deleted if it's going to
> hang around. your call.
>
the removal entry is/was for the symbols *marked*, not for the
infrastructure....
next prev parent reply other threads:[~2007-07-19 15:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-19 12:53 does CONFIG_UNUSED_SYMBOLS have any value anymore? Robert P. J. Day
2007-07-19 14:26 ` Stefan Richter
2007-07-19 14:45 ` Arjan van de Ven
2007-07-19 15:34 ` Robert P. J. Day
2007-07-19 15:47 ` Arjan van de Ven [this message]
2007-07-19 16:22 ` Robert P. J. Day
2007-07-19 15:32 ` Robert P. J. Day
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