m_append
if (unlikely(m_append(mbuf, len, rx_info->mbuf->m_data) == 0)) {
return m_append(m, ccmp.ic_trailer, mic);
return m_append(m, tkip.ic_miclen, mic);
if (!m_append(m, IEEE80211_WEP_CRCLEN, icv)) {
return m_append(m0, IEEE80211_WEP_CRCLEN, icv);
int m_append(struct mbuf *, int, const void *);