inet: move reqsk_queue_alloc() to net/ipv4/inet_connection_sock.c

Only called once from inet_csk_listen_start(), it can be static.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260204055147.1682705-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

3 files changed, 9 insertions, 26 deletions

diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 9b9e04f6bb89..23bb909771fb 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -196,8 +196,6 @@ struct request_sock_queue {
 					     */
 };
 
-void reqsk_queue_alloc(struct request_sock_queue *queue);
-
 void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req,
 			   bool reset);
 
diff --git a/net/core/request_sock.c b/net/core/request_sock.c
index 897a8f01a67b..31389f875b19 100644
--- a/net/core/request_sock.c
+++ b/net/core/request_sock.c
@@ -17,30 +17,6 @@
 #include <net/request_sock.h>
 
 /*
- * Maximum number of SYN_RECV sockets in queue per LISTEN socket.
- * One SYN_RECV socket costs about 80bytes on a 32bit machine.
- * It would be better to replace it with a global counter for all sockets
- * but then some measure against one socket starving all other sockets
- * would be needed.
- *
- * The minimum value of it is 128. Experiments with real servers show that
- * it is absolutely not enough even at 100conn/sec. 256 cures most
- * of problems.
- * This value is adjusted to 128 for low memory machines,
- * and it will increase in proportion to the memory of machine.
- * Note : Dont forget somaxconn that may limit backlog too.
- */
-
-void reqsk_queue_alloc(struct request_sock_queue *queue)
-{
-	queue->fastopenq.rskq_rst_head = NULL;
-	queue->fastopenq.rskq_rst_tail = NULL;
-	queue->fastopenq.qlen = 0;
-
-	queue->rskq_accept_head = NULL;
-}
-
-/*
  * This function is called to set a Fast Open socket's "fastopen_rsk" field
  * to NULL when a TFO socket no longer needs to access the request_sock.
  * This happens only after 3WHS has been either completed or aborted (e.g.,
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 018e8ffc0717..60f2ee039c05 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -1314,6 +1314,15 @@ static int inet_ulp_can_listen(const struct sock *sk)
 	return 0;
 }
 
+static void reqsk_queue_alloc(struct request_sock_queue *queue)
+{
+	queue->fastopenq.rskq_rst_head = NULL;
+	queue->fastopenq.rskq_rst_tail = NULL;
+	queue->fastopenq.qlen = 0;
+
+	queue->rskq_accept_head = NULL;
+}
+
 int inet_csk_listen_start(struct sock *sk)
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);