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Gao Feng authored
1. Use struct gre_base_hdr directly in pptp_gre_header instead of duplicated members; 2. Use existing macros like GRE_KEY, GRE_SEQ, and so on instead of duplicated macros defined by PPTP; 3. Add new macros like GRE_IS_ACK/SEQ and so on instead of PPTP_GRE_IS_A/S and so on; Signed-off-by:
Gao Feng <fgao@ikuai8.com> Reviewed-by:
Philip Prindeville <philipp@redfish-solutions.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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