On Wed, Oct 18, 2023 at 07:31:46AM +0200, Christoph Hellwig wrote:

On Wed, Oct 18, 2023 at 01:30:18AM +0100, David Woodhouse wrote:

quoted

But if we're going to tolerate the core kernel still exporting some
stuff with EXPORT_SYMBOL, why isn't OK for a GPL-licensed module do to
the same? Even an *in-tree* GPL-licensed module now can't export
functionality with EXPORT_SYMBOL and have it used with symbol_get().

Anything using symbol_get is by intent very deeply internal for tightly
coupled modules working together, and thus not a non-GPL export.

In fact the current series is just a stepping stone.  Once some mess
in the kvm/vfio integration is fixed up we'll require a new explicit
EXPORT_SYMBOL variant as symbol_get wasn't ever intended to be used
on totally random symbols not exported for use by symbol_get.

The later patches in the series also show we could resolves most
uses through Kconfig and at build time, it really begs the question
if we even need it for any real valid uses.

  Luis