[MPTCP] [PATCH] Squash-to: "tcp: coalesce/collapse must respect MPTCP extensions"

[MPTCP] [PATCH] Squash-to: "tcp: coalesce/collapse must respect MPTCP extensions"

[Paolo Abeni]

[-- Attachment #1: Type: text/plain, Size: 810 bytes --]

clarify mptcp ext usage

to be added to squashed commit changelog:
"""
 v5 -> v6:
  - clarify MPTCP must always be cleared at allocation time
"""
---
 include/net/mptcp.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/net/mptcp.h b/include/net/mptcp.h
index 7d693d0a38ff..8825da7538dd 100644
--- a/include/net/mptcp.h
+++ b/include/net/mptcp.h
@@ -48,6 +48,9 @@ static inline void mptcp_skb_ext_move(struct sk_buff *to,
 static inline bool mptcp_ext_matches(const struct mptcp_ext *to_ext,
 				     const struct mptcp_ext *from_ext)
 {
+	/* MPTCP always clear the ext when adding it to the skb, so
+	 * holes do not bother us here
+	 */
 	return !from_ext ||
 	       (to_ext && from_ext &&
 	        !memcmp(from_ext, to_ext, sizeof(struct mptcp_ext)));
-- 
2.21.0