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genetlink: export genl_unregister_mc_group()

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Add an EXPORT_SYMBOL() to genl_unregister_mc_group(), to allow
unregistering groups on the run. EXPORT_SYMBOL_GPL() is not used as
the rest of the functions exported by this module (eg:
genl_register_mc_group) are also not _GPL().

Cleanup is currently done when unregistering a family, but there is
no way to unregister a single multicast group due to that function not
being exported. Seems to be a mistake as it is documented as for
external consumption.

This is needed by the WiMAX stack to be able to cleanup unused mc
groups.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Inaky Perez-Gonzalez 2008-12-20 16:57:37 -08:00 committed by Greg Kroah-Hartman
parent 15530dfd33
commit 3efb40c2c6
1 changed files with 1 additions and 0 deletions
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net/netlink/genetlink.c
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@ -225,6 +225,7 @@ void genl_unregister_mc_group(struct genl_family *family,
__genl_unregister_mc_group(family, grp);
genl_unlock();
}
EXPORT_SYMBOL(genl_unregister_mc_group);
static void genl_unregister_mc_groups(struct genl_family *family)
{