netdev - [PATCH v3 net-next 2/4] inet: ping: remove ping

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Message-ID: <20250829153054.474201-3-edumazet@google.com>
Date: Fri, 29 Aug 2025 15:30:52 +0000
From: Eric Dumazet <edumazet@...gle.com>
To: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>
Cc: Simon Horman <horms@...nel.org>, David Ahern <dsahern@...nel.org>, netdev@...r.kernel.org, 
	eric.dumazet@...il.com, Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH v3 net-next 2/4] inet: ping: remove ping_hash()

There is no point in keeping ping_hash().

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Reviewed-by: David Ahern <dsahern@...nel.org>
---
v3: Yue Haibing feedback (remove ping_hash() declaration in include/net/ping.h)
v2: https://lore.kernel.org/netdev/20250828164149.3304323-1-edumazet@google.com/T/#md0f7cce22b5a0ce71c366b75be20db3a528e8e03

 include/net/ping.h |  1 -
 net/ipv4/ping.c    | 10 ----------
 net/ipv6/ping.c    |  1 -
 3 files changed, 12 deletions(-)

diff --git a/include/net/ping.h b/include/net/ping.h
index bc7779262e60350e2748c74731a5d6d71f1b9455..9634b8800814dae4568e86fdf917bbe41d429b4b 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -54,7 +54,6 @@ struct pingfakehdr {
 };
 
 int  ping_get_port(struct sock *sk, unsigned short ident);
-int ping_hash(struct sock *sk);
 void ping_unhash(struct sock *sk);
 
 int  ping_init_sock(struct sock *sk);
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 74a0beddfcc41d8ba17792a11a9d027c9d590bac..75e1b0f5c697653e79166fde5f312f46b471344a 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -67,7 +67,6 @@ static inline u32 ping_hashfn(const struct net *net, u32 num, u32 mask)
 	pr_debug("hash(%u) = %u\n", num, res);
 	return res;
 }
-EXPORT_SYMBOL_GPL(ping_hash);
 
 static inline struct hlist_head *ping_hashslot(struct ping_table *table,
 					       struct net *net, unsigned int num)
@@ -144,14 +143,6 @@ int ping_get_port(struct sock *sk, unsigned short ident)
 }
 EXPORT_SYMBOL_GPL(ping_get_port);
 
-int ping_hash(struct sock *sk)
-{
-	pr_debug("ping_hash(sk->port=%u)\n", inet_sk(sk)->inet_num);
-	BUG(); /* "Please do not press this button again." */
-
-	return 0;
-}
-
 void ping_unhash(struct sock *sk)
 {
 	struct inet_sock *isk = inet_sk(sk);
@@ -1008,7 +999,6 @@ struct proto ping_prot = {
 	.bind =		ping_bind,
 	.backlog_rcv =	ping_queue_rcv_skb,
 	.release_cb =	ip4_datagram_release_cb,
-	.hash =		ping_hash,
 	.unhash =	ping_unhash,
 	.get_port =	ping_get_port,
 	.put_port =	ping_unhash,
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 82b0492923d458213ac7a6f9316158af2191e30f..d7a2cdaa26312b44f1fe502d3d40f3e27f961fa8 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -208,7 +208,6 @@ struct proto pingv6_prot = {
 	.recvmsg =	ping_recvmsg,
 	.bind =		ping_bind,
 	.backlog_rcv =	ping_queue_rcv_skb,
-	.hash =		ping_hash,
 	.unhash =	ping_unhash,
 	.get_port =	ping_get_port,
 	.put_port =	ping_unhash,
-- 
2.51.0.318.gd7df087d1a-goog