tcp: use sk_skb_reason_drop to free rx packets

Replace kfree_skb_reason with sk_skb_reason_drop and pass the receiving
socket to the tracepoint.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/r/202406011539.jhwBd7DX-lkp@intel.com/
Signed-off-by: Yan Zhai <yan@cloudflare.com>
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index b61d368..1948d15 100644 (file)
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -496,6 +496,6 @@ out:
 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 d0a1e34..f513d1f 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4860,7 +4860,7 @@ 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 de0c8f4..8e49d69 100644 (file)
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1932,7 +1932,7 @@ 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,
@@ -2168,8 +2168,8 @@ 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;
 
@@ -2368,7 +2368,7 @@ bad_packet:
 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 bfad1e8..9d83ead 100644 (file)
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -275,6 +275,6 @@ out:
 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 223b717..200fea9 100644 (file)
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1674,7 +1674,7 @@ reset:
 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;
@@ -1747,8 +1747,8 @@ 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);
@@ -1940,7 +1940,7 @@ bad_packet:
 
 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: