It's annoying to constantly see the same "Not yet implemented" message
over and over with nothing able to be done about it, so rate limit it
for now to keep user's logs "clean".
Reported-by: NLars Täuber <lars.taeuber@web.de>
Tested-by: NLars Täuber <lars.taeuber@web.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>