[PATCH mptcp-next v2 0/2] mptcp: preserve MSG_EOR semantics in sendmsg path

[Gang Yan <gang.yan@linux.dev>]

From: Gang Yan <yangang@kylinos.cn>

Hi, Matt:

With this v2 version, the packetdrill scripts also updated at
https://github.com/multipath-tcp/packetdrill/pull/189.

I removed the 'mptcp_eor_subflows.pkt', and made some improvements in
'mptcp_eor_no_collapse.pkt'.

Thanks,
Gang

---
Changelog:
v2:
  - Split the change into two independent patches:
    Patch 1 changes overhead to u8 (with BUILD_BUG_ON).
    Patch 2 implements the actual MSG_EOR handling.
    This split makes the series easier to review.
  - Added a !df->eor check in mptcp_frag_can_collapse_to() to prevent
    appending new data after a dfrag with the EOR flag set.
  - Improved comments at the new BUILD_BUG_ON check.

v1:
  - Link: https://patchwork.kernel.org/project/mptcp/patch/20260309025431.125943-1-gang.yan@linux.dev/

Gang Yan (2):
  mptcp: reduce 'overhead' from u16 to u8
  mptcp: preserve MSG_EOR semantics in sendmsg path

 net/mptcp/protocol.c | 28 +++++++++++++++++++++++++---
 net/mptcp/protocol.h |  4 +++-
 2 files changed, 28 insertions(+), 4 deletions(-)

-- 
2.43.0