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SubjectRe: [Fwd: [PATCH 8/12] LED: Add LED device support for ixp4xx devices]


On Sun, 5 Feb 2006, Andrew Morton wrote:
>
> Richard Purdie <rpurdie@rpsys.net> wrote:
> >
> > +MODULE_AUTHOR("John Bowler <jbowler@acm.org>");
> > +MODULE_DESCRIPTION("IXP4XX GPIO LED driver");
> > +MODULE_LICENSE("MIT");
>
> MIT license is unusual. There's one other file in the kernel which uses it
> and that's down in MTD where nobody dares look.
>
> I don't know whether MIT is GPL-compatible-for-kernel-purposes or not. Help.

The FSF considers the normal MIT license (the original X license) to be
GPL-compatible, but suggests not using the name (because there have been
multiple licenses used at MIT).

The real problem is that it will taint the kernel, because the kernel
won't _recognize_ it as being GPL-compatible. See module.c: function
"license_is_gpl_compatible()".

For that reason, if no other, I would suggest changing it to

"Dual MIT/GPL"

and adding that to the list of recognized licenses (the "Dual xxx/GPL"
because by the time it is linked into the kernel it _will_ be GPL for any
license that is compatible with the GPL).

Otherwise most kernel developers will discard any bug reports due to the
oops showing the kernel as "tainted".

Linus
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