ipv6: raw: add drop reasons

Use existing helpers and drop reason codes for RAW input path.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index ada087b..2e1c806 100644 (file)
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -355,17 +355,19 @@ void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
 
 static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
+       enum skb_drop_reason reason;
+
        if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) &&
            skb_checksum_complete(skb)) {
                atomic_inc(&sk->sk_drops);
-               kfree_skb(skb);
+               kfree_skb_reason(skb, SKB_DROP_REASON_SKB_CSUM);
                return NET_RX_DROP;
        }
 
        /* Charge it to the socket. */
        skb_dst_drop(skb);
-       if (sock_queue_rcv_skb(sk, skb) < 0) {
-               kfree_skb(skb);
+       if (sock_queue_rcv_skb_reason(sk, skb, &reason) < 0) {
+               kfree_skb_reason(skb, reason);
                return NET_RX_DROP;
        }
 
@@ -386,7 +388,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
 
        if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
                atomic_inc(&sk->sk_drops);
-               kfree_skb(skb);
+               kfree_skb_reason(skb, SKB_DROP_REASON_XFRM_POLICY);
                return NET_RX_DROP;
        }
 
@@ -410,7 +412,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
        if (inet->hdrincl) {
                if (skb_checksum_complete(skb)) {
                        atomic_inc(&sk->sk_drops);
-                       kfree_skb(skb);
+                       kfree_skb_reason(skb, SKB_DROP_REASON_SKB_CSUM);
                        return NET_RX_DROP;
                }
        }