tree b33ca0f4477c500380bc409cc272ab7f207ed77b
parent bd5cbcedf446e2f37cf2a37f533a7e1d7dff9312
author Sam Ravnborg <sam@mars.ravnborg.org> 1149882835 +0200
committer Sam Ravnborg <sam@mars.ravnborg.org> 1149882835 +0200

kbuild: check license compatibility when building modules

Modules that uses GPL symbols can no longer be build with kbuild,
the build will fail during the modpost step.
When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol
then warn during modpost so author are actually notified.

The actual license compatibility check is shared with the kernel
to make sure it is in sync.

Patch originally from: Andreas Gruenbacher <agruen@suse.de> and
Ram Pai <linuxram@us.ibm.com>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>