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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 , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Neil Horman , linux-trace-kernel@vger.kernel.org, Dan Carpenter Subject: [RFC v3 net-next 6/7] udp: use sk_skb_reason_drop to free rx packets Message-ID: <449b5d073ebc49bb1350b46c56ada8469a96f8d8.1717529533.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" Replace kfree_skb_reason with sk_skb_reason_drop and pass the receiving socket to the tracepoint. Reported-by: kernel test robot Closes: https://lore.kernel.org/r/202406011751.NpVN0sSk-lkp@intel.com/ Signed-off-by: Yan Zhai --- v2->v3: added missing report tags --- net/ipv4/udp.c | 10 +++++----- net/ipv6/udp.c | 10 +++++----- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 189c9113fe9a..ecafb1695999 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2074,7 +2074,7 @@ static int __udp_queue_rcv_skb(struct sock *sk, struc= t sk_buff *skb) } UDP_INC_STATS(sock_net(sk), UDP_MIB_INERRORS, is_udplite); trace_udp_fail_queue_rcv_skb(rc, sk, skb); - kfree_skb_reason(skb, drop_reason); + sk_skb_reason_drop(sk, skb, drop_reason); return -1; } =20 @@ -2196,7 +2196,7 @@ static int udp_queue_rcv_one_skb(struct sock *sk, str= uct sk_buff *skb) drop: __UDP_INC_STATS(sock_net(sk), UDP_MIB_INERRORS, is_udplite); atomic_inc(&sk->sk_drops); - kfree_skb_reason(skb, drop_reason); + sk_skb_reason_drop(sk, skb, drop_reason); return -1; } =20 @@ -2383,7 +2383,7 @@ static int udp_unicast_rcv_skb(struct sock *sk, struc= t sk_buff *skb, int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, int proto) { - struct sock *sk; + struct sock *sk =3D NULL; struct udphdr *uh; unsigned short ulen; struct rtable *rt =3D skb_rtable(skb); @@ -2460,7 +2460,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_ta= ble *udptable, * Hmm. We got an UDP packet to a port to which we * don't wanna listen. Ignore it. */ - kfree_skb_reason(skb, drop_reason); + sk_skb_reason_drop(sk, skb, drop_reason); return 0; =20 short_packet: @@ -2485,7 +2485,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_ta= ble *udptable, __UDP_INC_STATS(net, UDP_MIB_CSUMERRORS, proto =3D=3D IPPROTO_UDPLITE); drop: __UDP_INC_STATS(net, UDP_MIB_INERRORS, proto =3D=3D IPPROTO_UDPLITE); - kfree_skb_reason(skb, drop_reason); + sk_skb_reason_drop(sk, skb, drop_reason); return 0; } =20 diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index c81a07ac0463..b56f0b9f4307 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -673,7 +673,7 @@ static int __udpv6_queue_rcv_skb(struct sock *sk, struc= t sk_buff *skb) } UDP6_INC_STATS(sock_net(sk), UDP_MIB_INERRORS, is_udplite); trace_udp_fail_queue_rcv_skb(rc, sk, skb); - kfree_skb_reason(skb, drop_reason); + sk_skb_reason_drop(sk, skb, drop_reason); return -1; } =20 @@ -776,7 +776,7 @@ static int udpv6_queue_rcv_one_skb(struct sock *sk, str= uct sk_buff *skb) drop: __UDP6_INC_STATS(sock_net(sk), UDP_MIB_INERRORS, is_udplite); atomic_inc(&sk->sk_drops); - kfree_skb_reason(skb, drop_reason); + sk_skb_reason_drop(sk, skb, drop_reason); return -1; } =20 @@ -940,8 +940,8 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_tabl= e *udptable, enum skb_drop_reason reason =3D SKB_DROP_REASON_NOT_SPECIFIED; const struct in6_addr *saddr, *daddr; struct net *net =3D dev_net(skb->dev); + struct sock *sk =3D NULL; struct udphdr *uh; - struct sock *sk; bool refcounted; u32 ulen =3D 0; =20 @@ -1033,7 +1033,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_ta= ble *udptable, __UDP6_INC_STATS(net, UDP_MIB_NOPORTS, proto =3D=3D IPPROTO_UDPLITE); icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0); =20 - kfree_skb_reason(skb, reason); + sk_skb_reason_drop(sk, skb, reason); return 0; =20 short_packet: @@ -1054,7 +1054,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_ta= ble *udptable, __UDP6_INC_STATS(net, UDP_MIB_CSUMERRORS, proto =3D=3D IPPROTO_UDPLITE); discard: __UDP6_INC_STATS(net, UDP_MIB_INERRORS, proto =3D=3D IPPROTO_UDPLITE); - kfree_skb_reason(skb, reason); + sk_skb_reason_drop(sk, skb, reason); return 0; } =20 --=20 2.30.2