From 65b02260a0e0c7cbb2faafd6c84ad95f68a2acae Mon Sep 17 00:00:00 2001 From: "Matthieu Baerts (NGI0)" Date: Mon, 9 Sep 2024 22:09:21 +0200 Subject: [PATCH] mptcp: export mptcp_subflow_early_fallback() This helper will be used outside protocol.h in the following commit. While at it, also add a 'pr_fallback()' debug print, to help identifying fallbacks. Signed-off-by: Matthieu Baerts (NGI0) Link: https://patch.msgid.link/20240909-net-next-mptcp-fallback-x-mpc-v1-1-da7ebb4cd2a3@kernel.org Signed-off-by: Jakub Kicinski --- net/mptcp/protocol.c | 7 ------- net/mptcp/protocol.h | 8 ++++++++ 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 37ebcb7640ebb..cbbcc46cfef0a 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -3717,13 +3717,6 @@ static int mptcp_ioctl(struct sock *sk, int cmd, int *karg) return 0; } -static void mptcp_subflow_early_fallback(struct mptcp_sock *msk, - struct mptcp_subflow_context *subflow) -{ - subflow->request_mptcp = 0; - __mptcp_do_fallback(msk); -} - static int mptcp_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) { struct mptcp_subflow_context *subflow; diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index bf03bff9ac441..302bd808b839a 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -1215,6 +1215,14 @@ static inline void mptcp_do_fallback(struct sock *ssk) #define pr_fallback(a) pr_debug("%s:fallback to TCP (msk=%p)\n", __func__, a) +static inline void mptcp_subflow_early_fallback(struct mptcp_sock *msk, + struct mptcp_subflow_context *subflow) +{ + pr_fallback(msk); + subflow->request_mptcp = 0; + __mptcp_do_fallback(msk); +} + static inline bool mptcp_check_infinite_map(struct sk_buff *skb) { struct mptcp_ext *mpext;