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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , David Ahern , Abhishek Chauhan , Mina Almasry , Florian Westphal , Alexander Lobakin , David Howells , Jiri Pirko , Daniel Borkmann , Sebastian Andrzej Siewior , Lorenzo Bianconi , Pavel Begunkov , linux-kernel@vger.kernel.org, kernel-team@cloudflare.com, Jesper Dangaard Brouer Subject: [RFC net-next 4/6] tcp: pass rx socket on rcv drops Message-ID: <48392b4d422dd64cb8e76822737928c189b2b4d2.1717105215.git.yan@cloudflare.com> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use kfree_skb_for_sk call to pass on the rx socket Signed-off-by: Yan Zhai --- net/ipv4/syncookies.c | 2 +- net/ipv4/tcp_input.c | 2 +- net/ipv4/tcp_ipv4.c | 4 ++-- net/ipv6/syncookies.c | 2 +- net/ipv6/tcp_ipv6.c | 4 ++-- 5 files changed, 7 insertions(+), 7 deletions(-) diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c index b61d36810fe3..fd0ccf0a0439 100644 --- a/net/ipv4/syncookies.c +++ b/net/ipv4/syncookies.c @@ -496,6 +496,6 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk= _buff *skb) out_free: reqsk_free(req); out_drop: - kfree_skb_reason(skb, reason); + kfree_skb_for_sk(skb, sk, reason); return NULL; } diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 9c04a9c8be9d..6c5f6fe7d9fa 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -4849,7 +4849,7 @@ static void tcp_drop_reason(struct sock *sk, struct s= k_buff *skb, enum skb_drop_reason reason) { sk_drops_add(sk, skb); - kfree_skb_reason(skb, reason); + kfree_skb_for_sk(skb, sk, reason); } =20 /* This one checks to see if we can put data from the diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 8f70b8d1d1e5..cff9e0c7daec 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1944,7 +1944,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *sk= b) reset: tcp_v4_send_reset(rsk, skb, sk_rst_convert_drop_reason(reason)); discard: - kfree_skb_reason(skb, reason); + kfree_skb_for_sk(skb, sk, reason); /* Be careful here. If this function gets more complicated and * gcc suffers from register pressure on the x86, sk (in %ebx) * might be destroyed here. This current version compiles correctly, @@ -2381,7 +2381,7 @@ int tcp_v4_rcv(struct sk_buff *skb) discard_it: SKB_DR_OR(drop_reason, NOT_SPECIFIED); /* Discard frame. */ - kfree_skb_reason(skb, drop_reason); + kfree_skb_for_sk(skb, sk, drop_reason); return 0; =20 discard_and_relse: diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c index bfad1e89b6a6..d09fec4bb0c0 100644 --- a/net/ipv6/syncookies.c +++ b/net/ipv6/syncookies.c @@ -275,6 +275,6 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk= _buff *skb) out_free: reqsk_free(req); out_drop: - kfree_skb_reason(skb, reason); + kfree_skb_for_sk(skb, sk, reason); return NULL; } diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 750aa681779c..c7a7f339ca74 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1682,7 +1682,7 @@ int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *sk= b) discard: if (opt_skb) __kfree_skb(opt_skb); - kfree_skb_reason(skb, reason); + kfree_skb_for_sk(skb, sk, reason); return 0; csum_err: reason =3D SKB_DROP_REASON_TCP_CSUM; @@ -1948,7 +1948,7 @@ INDIRECT_CALLABLE_SCOPE int tcp_v6_rcv(struct sk_buff= *skb) =20 discard_it: SKB_DR_OR(drop_reason, NOT_SPECIFIED); - kfree_skb_reason(skb, drop_reason); + kfree_skb_for_sk(skb, sk, drop_reason); return 0; =20 discard_and_relse: --=20 2.30.2