From: Jason Xing <kernelx...@tencent.com> Since we have mapped every mptcp reset reason definition in enum sk_rst_reason, introducing a new helper can cover some missing places where we have already set the subflow->reset_reason.
Note: using SK_RST_REASON_NOT_SPECIFIED is the same as SK_RST_REASON_MPTCP_RST_EUNSPEC. They are both unknown. So we can convert it directly. Suggested-by: Paolo Abeni <pab...@redhat.com> Signed-off-by: Jason Xing <kernelx...@tencent.com> --- Link: https://lore.kernel.org/all/2d3ea199eef53cf6a0c48e21abdee0eefbdee927.ca...@redhat.com/ --- net/mptcp/protocol.c | 4 +--- net/mptcp/protocol.h | 11 +++++++++++ net/mptcp/subflow.c | 6 ++---- 3 files changed, 14 insertions(+), 7 deletions(-) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 065967086492..4b13ca362efa 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -21,7 +21,6 @@ #endif #include <net/mptcp.h> #include <net/xfrm.h> -#include <net/rstreason.h> #include <asm/ioctls.h> #include "protocol.h" #include "mib.h" @@ -2570,8 +2569,7 @@ static void mptcp_check_fastclose(struct mptcp_sock *msk) slow = lock_sock_fast(tcp_sk); if (tcp_sk->sk_state != TCP_CLOSE) { - tcp_send_active_reset(tcp_sk, GFP_ATOMIC, - SK_RST_REASON_NOT_SPECIFIED); + mptcp_send_active_reset_reason(tcp_sk); tcp_set_state(tcp_sk, TCP_CLOSE); } unlock_sock_fast(tcp_sk, slow); diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index bbcb8c068aae..d40ad4a2f1b8 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -12,6 +12,7 @@ #include <net/inet_connection_sock.h> #include <uapi/linux/mptcp.h> #include <net/genetlink.h> +#include <net/rstreason.h> #include "mptcp_pm_gen.h" @@ -609,6 +610,16 @@ sk_rst_convert_mptcp_reason(u32 reason) } } +static inline void +mptcp_send_active_reset_reason(struct sock *sk) +{ + struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(sk); + enum sk_rst_reason reason; + + reason = sk_rst_convert_mptcp_reason(subflow->reset_reason); + tcp_send_active_reset(sk, GFP_ATOMIC, reason); +} + static inline u64 mptcp_subflow_get_map_offset(const struct mptcp_subflow_context *subflow) { diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index fb7abf2d01ca..97ec44d1df30 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -20,7 +20,6 @@ #include <net/transp_v6.h> #endif #include <net/mptcp.h> -#include <net/rstreason.h> #include "protocol.h" #include "mib.h" @@ -424,7 +423,7 @@ void mptcp_subflow_reset(struct sock *ssk) /* must hold: tcp_done() could drop last reference on parent */ sock_hold(sk); - tcp_send_active_reset(ssk, GFP_ATOMIC, SK_RST_REASON_NOT_SPECIFIED); + mptcp_send_active_reset_reason(ssk); tcp_done(ssk); if (!test_and_set_bit(MPTCP_WORK_CLOSE_SUBFLOW, &mptcp_sk(sk)->flags)) mptcp_schedule_work(sk); @@ -1362,8 +1361,7 @@ static bool subflow_check_data_avail(struct sock *ssk) tcp_set_state(ssk, TCP_CLOSE); while ((skb = skb_peek(&ssk->sk_receive_queue))) sk_eat_skb(ssk, skb); - tcp_send_active_reset(ssk, GFP_ATOMIC, - SK_RST_REASON_NOT_SPECIFIED); + mptcp_send_active_reset_reason(ssk); WRITE_ONCE(subflow->data_avail, false); return false; } -- 2.37.3
