[PATCH 6.1 191/219] ipv4: raw: add drop reasons

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6.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <edumazet@xxxxxxxxxx>

[ Upstream commit 42186e6c00352ce9df9e3f12b1ff82e61978d40b ]

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

Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Stable-dep-of: e622502c310f ("ipmr: fix kernel panic when forwarding mcast packets")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/ipv4/raw.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 639aa5abda9d..19936dc329d8 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -286,11 +286,13 @@ void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info)
 
 static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
+	enum skb_drop_reason reason;
+
 	/* Charge it to the socket. */
 
 	ipv4_pktinfo_prepare(sk, 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;
 	}
 
@@ -301,7 +303,7 @@ int raw_rcv(struct sock *sk, struct sk_buff *skb)
 {
 	if (!xfrm4_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;
 	}
 	nf_reset_ct(skb);
-- 
2.43.0







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