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/xnu-12377.41.6/bsd/kern/
H A Duipc_mbuf2.c1176 uint32_t total_sub = 0; /* total to subtract */ in m_adj_sum16() local
1190 total_sub = m_sum16(m, start, len); in m_adj_sum16()
1219 total_sub += ((extra << 8) & 0xffff) | (extra >> 8); in m_adj_sum16()
1221 total_sub += extra; in m_adj_sum16()
1224 total_sub = (total_sub >> 16) + (total_sub & 0xffff); in m_adj_sum16()
1230 if (total_sub != 0) { in m_adj_sum16()
1231 if (total_sub >= sum) { in m_adj_sum16()
1232 sum = ~(total_sub - sum) & 0xffff; in m_adj_sum16()
1234 sum -= total_sub; in m_adj_sum16()