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SubjectRe: 2.6.21-mm2 - Kconfig horkage
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On Wed, 09 May 2007 10:07:56 PDT, Christoph Lameter said:
> On Wed, 9 May 2007, Valdis.Kletnieks@vt.edu wrote:
> > 1) Spotted in init/Kconfig:
> >
> > config SLUB_DEBUG
> > default y
> > bool "Enable SLUB debugging support" if EMBEDDED
> > help
> >
> > Shouldn't that have an 'default SLUB' or 'if SLUB' or something attached to it?
>
> Maybe. Is there a problem with SLUB_DEBUG being set if SLUB is not
> selected?

% egrep 'SL[AU]B' /usr/src/linux-2.6.21-mm2/.config
# CONFIG_SLUB_DEBUG is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_DEBUG_SLAB is not set

Just seemed odd to do a 'make oldconfig' and get prompted for the value, and it
gave a value of 'Y' to a debug option of a feature that wasn't selected. :)

It took me a while to convince myself that somebody hadn't changed the default
to CONFIG_SLUB while I wasn't looking....
(Maybe the order of entries needs fixing - SLAB, SLAB_DEBUG, SLUB, SLUB_DEBUG,
so that oldconfig and friends don't pop the question for debugging till *after*
they ask if the feature should be included?
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