[RFC v3 net-next 5/7] tcp: use sk_skb_reason_drop to free rx packets
From: Yan Zhai <hidden>
Date: 2024-06-04 21:47:56
Also in:
lkml, netdev
Subsystem:
networking [general], networking [tcp], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Neal Cardwell, Linus Torvalds
Replace kfree_skb_reason with sk_skb_reason_drop and pass the receiving socket to the tracepoint. Reported-by: kernel test robot <redacted> Closes: https://lore.kernel.org/r/202406011539.jhwBd7DX-lkp@intel.com/ (local) Signed-off-by: Yan Zhai <redacted> --- v2->v3: added missing report tags --- net/ipv4/syncookies.c | 2 +- net/ipv4/tcp_input.c | 2 +- net/ipv4/tcp_ipv4.c | 6 +++--- net/ipv6/syncookies.c | 2 +- net/ipv6/tcp_ipv6.c | 6 +++--- 5 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index b61d36810fe3..1948d15f1f28 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); + sk_skb_reason_drop(sk, skb, reason); return NULL; }
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 5aadf64e554d..bedb079de1f0 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c@@ -4859,7 +4859,7 @@ static void tcp_drop_reason(struct sock *sk, struct sk_buff *skb, enum skb_drop_reason reason) { sk_drops_add(sk, skb); - kfree_skb_reason(skb, reason); + sk_skb_reason_drop(sk, skb, reason); } /* 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 041c7eda9abe..f7a046bc4b27 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c@@ -1939,7 +1939,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb) reset: tcp_v4_send_reset(rsk, skb, sk_rst_convert_drop_reason(reason)); discard: - kfree_skb_reason(skb, reason); + sk_skb_reason_drop(sk, skb, 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,
@@ -2176,8 +2176,8 @@ int tcp_v4_rcv(struct sk_buff *skb) int dif = inet_iif(skb); const struct iphdr *iph; const struct tcphdr *th; + struct sock *sk = NULL; bool refcounted; - struct sock *sk; int ret; u32 isn;
@@ -2376,7 +2376,7 @@ 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); + sk_skb_reason_drop(sk, skb, drop_reason); return 0; discard_and_relse:
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index bfad1e89b6a6..9d83eadd308b 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); + sk_skb_reason_drop(sk, skb, reason); return NULL; }
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 1ac7502e1bf5..93967accc35d 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c@@ -1678,7 +1678,7 @@ int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb) discard: if (opt_skb) __kfree_skb(opt_skb); - kfree_skb_reason(skb, reason); + sk_skb_reason_drop(sk, skb, reason); return 0; csum_err: reason = SKB_DROP_REASON_TCP_CSUM;
@@ -1751,8 +1751,8 @@ INDIRECT_CALLABLE_SCOPE int tcp_v6_rcv(struct sk_buff *skb) int dif = inet6_iif(skb); const struct tcphdr *th; const struct ipv6hdr *hdr; + struct sock *sk = NULL; bool refcounted; - struct sock *sk; int ret; u32 isn; struct net *net = dev_net(skb->dev);
@@ -1944,7 +1944,7 @@ INDIRECT_CALLABLE_SCOPE int tcp_v6_rcv(struct sk_buff *skb) discard_it: SKB_DR_OR(drop_reason, NOT_SPECIFIED); - kfree_skb_reason(skb, drop_reason); + sk_skb_reason_drop(sk, skb, drop_reason); return 0; discard_and_relse:
--
2.30.2