m_align
m_align(m, sizeof(fcb));
m_align(m, len);
m_align(m, IMMED_PKT_SIZE);
m_align(m, len);
m_align(n, 0);
m_align(n, remain);
m_align(m, len);
m_align(m, len);
m_align(m, len);
m_align(m, sizeof(struct ieee1394_fraghdr));
m_align(m_head, L2TP_COPY_LENGTH + roundup(pad, 4));
m_align(m, len);
m_align(m, fragsize - ciphdrsize);
m_align(m, sizeof(*ea));
m_align(m, sizeof(*ea));
m_align(m0, 5); /* (max 5 header octets) */
m_align(m, m->m_len);
m_align(m, m->m_len);
m_align(m, m->m_len);
m_align(m, m->m_len);
m_align(m, m->m_len);
m_align(outchain, sizeof(struct sctphdr));
m_align(m, willcpy);
m_align(mh, sizeof(*ip6));
m_align(*mh, sizeof(struct ip6_hdr));
m_align(m, l);
m_align(m, l);
m_align(m, l);
m_align(m, m->m_len);
m_align(mb, authsiz + 10 * NFSX_UNSIGNED);
m_align(mb, 8 * NFSX_UNSIGNED);
void m_align(struct mbuf *, int);