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.
> 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().
> The risk of anyne using them only increases (no matter that it's marked
> as deprecated) as long as it's available - and nobody has until now
> claimed that he's actually using one pf them in a binary-only module.
I am not convinced that the risk of usage increases significantly.
However, even if someone does start using them in a binary module, they
will have been warned. Yes, someone could possibly ignore the warning.
They -still- will have been warned, so that any "damage" would be
self-inflicted. Therefore, as noted earlier, the symbol transitions
to EXPORT_SYMBOL_GPL() one year after its inclusion, regardless of any
people who ignored warnings.
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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