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The really indented part that does the huge switch on the interface
type is a nuisance. Put it into an own function 'prepare_for_handlers'.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>