STA_DEMOTE11B
se0->se_flags &= ~STA_DEMOTE11B;
se0->se_flags |= STA_DEMOTE11B;
se0->se_flags |= STA_DEMOTE11B;
if (selbs->se_flags & STA_DEMOTE11B)
if (selbs->se_flags & STA_DEMOTE11B)
if (selbs->se_flags & STA_DEMOTE11B)
if (selbs->se_flags & STA_DEMOTE11B)