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SubjectRe: [2.6.22 patch] the scheduled removal of OBSOLETE_OSS options
Hi Adrian !

On Wed, Mar 07, 2007 at 08:56:02PM +0100, Adrian Bunk wrote:
(...)
> > Real problem is that we can expect several "sound does not work anymore"
> > because people doing "make oldconfig" will get no warning at all about
> > the removed options. Remember people complaining about keyboard not working ?
>
> There already were two kernel releases where people had to say
> explicitely "yes" to "Obsolete OSS drivers" with a quite clear help text
> for getting these OSS drivers.

To be fair, I did not notice it, but I think that people who will miss it
will have skipped 2 versions, in which case they can reasonably expect
enough changes to be very careful when updating their config.

> And did you complain when all the SATA options were renamed in 2.6.19
> without any warnings in previous kernels and far more user-visible
> effects than some obsolete OSS drivers (and no driver for your hard
> disk even prevents booting)?

No, because I have no SATA disk ;-)

> Or about the mess with the mes with the netfilter options when upgrading
> from 2.6.19 to 2.6.20?

Yes I've noticed this one, and at least it was clearly visible !

> If you didn't, this is the wrong patch to start complaining about...

Don't get me wrong, I'm not complaining. I just realized from previous
post that options disappearing produce no warning on make oldconfig, and
that it is easy to get trapped, even though there's nothing harmful.

> > Perhaps the real problem is more Kconfig than OSS, but it would be fine if
> > we found a solution to enumerate the list of options which have been removed
> > when they do their make oldconfig.
>
> Printing won't help - there are two many options (some even not user
> visible) that disappear with each kernel release.

Sometimes I do a diff between old and new config, and I do not notice
that many changes. So maybe a simple report at the end saying "The
following options have been removed" may catch people's attention
when it lists something which looks like a driver they know they use.

Anyway, I don't have time to propose something in this area, and I
know that talking is cheap, showing the code is another matter.

Cheers,
Willy

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