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    SubjectRe: 2.6.12-rc2-mm2
    On Mon, Apr 11, 2005 at 08:18:32AM -0700, Paul E. McKenney wrote:
    > On Mon, Apr 11, 2005 at 12:48:34AM +0200, Adrian Bunk wrote:
    > > kernel-rcupdatec-make-the-exports-export_symbol_gpl.patch
    > > add-deprecated_for_modules.patch
    > > add-deprecated_for_modules-fix.patch
    > > deprecate-synchronize_kernel-gpl-replacement.patch
    > > deprecate-synchronize_kernel-gpl-replacement-fix.patch
    > > change-synchronize_kernel-to-_rcu-and-_sched.patch
    > >
    > >
    > > Please drop these patches.
    >
    > Please keep them!
    >
    > > Using these symbols in non-GPL modules is a legal problem at least in
    > > the USA except for IBM,
    >
    > Again, based on what line of reasoning? Again, the obvious lines
    > of reasoning do not apply.

    Shouldn't the IBM patents be enough reason to prevent everyone except
    IBM from using RCU in non-GPL modules?

    > > and all we've heard from IBM is that they are
    > > not 100% sure that there is really no binary-only module by IBM that
    > > might use these symbols.
    >
    > >From my earlier message (http://lkml.org/lkml/2005/4/4/244):
    >
    > Agreed, in that I know of no binary module that uses RCU. However,
    > I cannot -prove- that there is no such module.
    >
    > IOW, I am also not 100% sure that there is really no binary-only module
    > using these symbols by -anyone-, including someone -other- than IBM.
    > In addition, I know of no way that -anyone- could possibly be 100% sure
    > that there is really no binary-only module using symbols. Hence the
    > approach of providing the year "grace period" before transitioning to
    > EXPORT_SYMBOL_GPL().
    >...

    If kernel development was based on the assumption that every change that
    might break binary-only modules would need a one year "grace period", it
    was much different from how it's today...

    > Thanx, Paul

    cu
    Adrian

    --

    "Is there not promise of rain?" Ling Tan asked suddenly out
    of the darkness. There had been need of rain for many days.
    "Only a promise," Lao Er said.
    Pearl S. Buck - Dragon Seed

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