[RFC net-next 5/6] udp: pass rx socket on rcv drops

From: Yan Zhai
Date: Thu May 30 2024 - 17:48:57 EST


Use kfree_skb_for_sk call to pass on the rx socket

Signed-off-by: Yan Zhai <yan@xxxxxxxxxxxxxx>
---
net/ipv4/udp.c | 6 +++---
net/ipv6/udp.c | 6 +++---
2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 189c9113fe9a..e5dbd1cbad50 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2074,7 +2074,7 @@ static int __udp_queue_rcv_skb(struct sock *sk, struct 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);
+ kfree_skb_for_sk(skb, sk, drop_reason);
return -1;
}

@@ -2196,7 +2196,7 @@ static int udp_queue_rcv_one_skb(struct sock *sk, struct 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);
+ kfree_skb_for_sk(skb, sk, drop_reason);
return -1;
}

@@ -2485,7 +2485,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
__UDP_INC_STATS(net, UDP_MIB_CSUMERRORS, proto == IPPROTO_UDPLITE);
drop:
__UDP_INC_STATS(net, UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
- kfree_skb_reason(skb, drop_reason);
+ kfree_skb_for_sk(skb, sk, drop_reason);
return 0;
}

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index c81a07ac0463..97a327c759b8 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -673,7 +673,7 @@ static int __udpv6_queue_rcv_skb(struct sock *sk, struct 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);
+ kfree_skb_for_sk(skb, sk, drop_reason);
return -1;
}

@@ -776,7 +776,7 @@ static int udpv6_queue_rcv_one_skb(struct sock *sk, struct 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);
+ kfree_skb_for_sk(skb, sk, drop_reason);
return -1;
}

@@ -1054,7 +1054,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
__UDP6_INC_STATS(net, UDP_MIB_CSUMERRORS, proto == IPPROTO_UDPLITE);
discard:
__UDP6_INC_STATS(net, UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
- kfree_skb_reason(skb, reason);
+ kfree_skb_for_sk(skb, sk, reason);
return 0;
}

--
2.30.2