FLAG_ROLE_SWITCH
if (test_bit(FLAG_ROLE_SWITCH, &c->flags))
if (test_bit(FLAG_ROLE_SWITCH, &c->flags))
if (test_bit(FLAG_ROLE_SWITCH, &chan->flags))
set_bit(FLAG_ROLE_SWITCH, &chan->flags);
clear_bit(FLAG_ROLE_SWITCH, &chan->flags);