WL1271_FLAG_VIF_CHANGE_IN_PROGRESS
if (test_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags))
set_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags);
clear_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags);