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-rw-r--r--net/decnet/dn_timer.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/net/decnet/dn_timer.c b/net/decnet/dn_timer.c
deleted file mode 100644
index aa4155875ca8..000000000000
--- a/net/decnet/dn_timer.c
+++ /dev/null
@@ -1,104 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * DECnet An implementation of the DECnet protocol suite for the LINUX
- * operating system. DECnet is implemented using the BSD Socket
- * interface as the means of communication with the user level.
- *
- * DECnet Socket Timer Functions
- *
- * Author: Steve Whitehouse <SteveW@ACM.org>
- *
- *
- * Changes:
- * Steve Whitehouse : Made keepalive timer part of the same
- * timer idea.
- * Steve Whitehouse : Added checks for sk->sock_readers
- * David S. Miller : New socket locking
- * Steve Whitehouse : Timer grabs socket ref.
- */
-#include <linux/net.h>
-#include <linux/socket.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/timer.h>
-#include <linux/spinlock.h>
-#include <net/sock.h>
-#include <linux/atomic.h>
-#include <linux/jiffies.h>
-#include <net/flow.h>
-#include <net/dn.h>
-
-/*
- * Slow timer is for everything else (n * 500mS)
- */
-
-#define SLOW_INTERVAL (HZ/2)
-
-static void dn_slow_timer(struct timer_list *t);
-
-void dn_start_slow_timer(struct sock *sk)
-{
- timer_setup(&sk->sk_timer, dn_slow_timer, 0);
- sk_reset_timer(sk, &sk->sk_timer, jiffies + SLOW_INTERVAL);
-}
-
-void dn_stop_slow_timer(struct sock *sk)
-{
- sk_stop_timer(sk, &sk->sk_timer);
-}
-
-static void dn_slow_timer(struct timer_list *t)
-{
- struct sock *sk = from_timer(sk, t, sk_timer);
- struct dn_scp *scp = DN_SK(sk);
-
- bh_lock_sock(sk);
-
- if (sock_owned_by_user(sk)) {
- sk_reset_timer(sk, &sk->sk_timer, jiffies + HZ / 10);
- goto out;
- }
-
- /*
- * The persist timer is the standard slow timer used for retransmits
- * in both connection establishment and disconnection as well as
- * in the RUN state. The different states are catered for by changing
- * the function pointer in the socket. Setting the timer to a value
- * of zero turns it off. We allow the persist_fxn to turn the
- * timer off in a permant way by returning non-zero, so that
- * timer based routines may remove sockets. This is why we have a
- * sock_hold()/sock_put() around the timer to prevent the socket
- * going away in the middle.
- */
- if (scp->persist && scp->persist_fxn) {
- if (scp->persist <= SLOW_INTERVAL) {
- scp->persist = 0;
-
- if (scp->persist_fxn(sk))
- goto out;
- } else {
- scp->persist -= SLOW_INTERVAL;
- }
- }
-
- /*
- * Check for keepalive timeout. After the other timer 'cos if
- * the previous timer caused a retransmit, we don't need to
- * do this. scp->stamp is the last time that we sent a packet.
- * The keepalive function sends a link service packet to the
- * other end. If it remains unacknowledged, the standard
- * socket timers will eventually shut the socket down. Each
- * time we do this, scp->stamp will be updated, thus
- * we won't try and send another until scp->keepalive has passed
- * since the last successful transmission.
- */
- if (scp->keepalive && scp->keepalive_fxn && (scp->state == DN_RUN)) {
- if (time_after_eq(jiffies, scp->stamp + scp->keepalive))
- scp->keepalive_fxn(sk);
- }
-
- sk_reset_timer(sk, &sk->sk_timer, jiffies + SLOW_INTERVAL);
-out:
- bh_unlock_sock(sk);
- sock_put(sk);
-}