Re: [PATCH v1 1/1] pptp: Refactor the struct and macros of PPTP codes

From: fgao@ikuai8.com
Date: Sat, 13 Aug 2016 00:30:48 +0800

From: Gao Feng <redacted>

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 <redacted>

Applied to net-next.