linux-kernel - Re: does CONFIG_UNUSED_SYMBOLS have any value anymore?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 19 Jul 2007 11:34:21 -0400 (EDT)
From:	"Robert P. J. Day" <rpjday@...dspring.com>
To:	Arjan van de Ven <arjan@...ux.intel.com>
cc:	Stefan Richter <stefanr@...6.in-berlin.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: does CONFIG_UNUSED_SYMBOLS have any value anymore?

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.

rday
-- 
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

http://fsdev.net/wiki/index.php?title=Main_Page
========================================================================
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/