The patch is to fix sfc_set_mc_addr_list() behaviour in order
to make it accept an empty multicast address list thus making
it possible to remove multicast addresses inserted previously
Fixes: 0fa0070e4391 ("net/sfc: support multicast addresses list controls")
Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
e9ddf37a50