In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly. Also drops a redundant initialization
that is already set up by DEFINE_TIMER.

Cc: "David S. Miller" <da...@davemloft.net>
Cc: Hans Liljestrand <ishkam...@gmail.com>
Cc: "Reshetova, Elena" <elena.reshet...@intel.com>
Cc: Bhumika Goyal <bhumi...@gmail.com>
Cc: Johannes Berg <johannes.b...@intel.com>
Cc: Roopa Prabhu <ro...@cumulusnetworks.com>
Cc: Augusto Mecking Caringi <augustocari...@gmail.com>
Cc: Jarod Wilson <ja...@redhat.com>
Cc: Kalle Valo <kv...@codeaurora.org>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Alexey Dobriyan <adobri...@gmail.com>
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keesc...@chromium.org>
---
 net/atm/clip.c |  4 ++--
 net/atm/lec.c  | 19 +++++++++----------
 net/atm/mpc.c  |  1 -
 3 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/net/atm/clip.c b/net/atm/clip.c
index 65f706e4344c..d4f6029d5109 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -153,7 +153,7 @@ static int neigh_check_cb(struct neighbour *n)
        return 1;
 }
 
-static void idle_timer_check(unsigned long dummy)
+static void idle_timer_check(struct timer_list *unused)
 {
        write_lock(&arp_tbl.lock);
        __neigh_for_each_release(&arp_tbl, neigh_check_cb);
@@ -887,7 +887,7 @@ static int __init atm_clip_init(void)
        register_netdevice_notifier(&clip_dev_notifier);
        register_inetaddr_notifier(&clip_inet_notifier);
 
-       setup_timer(&idle_timer, idle_timer_check, 0);
+       timer_setup(&idle_timer, idle_timer_check, 0);
 
 #ifdef CONFIG_PROC_FS
        {
diff --git a/net/atm/lec.c b/net/atm/lec.c
index a3d93a1bb133..c976196da3ea 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -1232,7 +1232,7 @@ static void lane2_associate_ind(struct net_device *dev, 
const u8 *mac_addr,
 #define LEC_ARP_REFRESH_INTERVAL (3*HZ)
 
 static void lec_arp_check_expire(struct work_struct *work);
-static void lec_arp_expire_arp(unsigned long data);
+static void lec_arp_expire_arp(struct timer_list *t);
 
 /*
  * Arp table funcs
@@ -1559,8 +1559,7 @@ static struct lec_arp_table *make_entry(struct lec_priv 
*priv,
        }
        ether_addr_copy(to_return->mac_addr, mac_addr);
        INIT_HLIST_NODE(&to_return->next);
-       setup_timer(&to_return->timer, lec_arp_expire_arp,
-                       (unsigned long)to_return);
+       timer_setup(&to_return->timer, lec_arp_expire_arp, 0);
        to_return->last_used = jiffies;
        to_return->priv = priv;
        skb_queue_head_init(&to_return->tx_wait);
@@ -1569,11 +1568,11 @@ static struct lec_arp_table *make_entry(struct lec_priv 
*priv,
 }
 
 /* Arp sent timer expired */
-static void lec_arp_expire_arp(unsigned long data)
+static void lec_arp_expire_arp(struct timer_list *t)
 {
        struct lec_arp_table *entry;
 
-       entry = (struct lec_arp_table *)data;
+       entry = from_timer(entry, t, timer);
 
        pr_debug("\n");
        if (entry->status == ESI_ARP_PENDING) {
@@ -1591,10 +1590,10 @@ static void lec_arp_expire_arp(unsigned long data)
 }
 
 /* Unknown/unused vcc expire, remove associated entry */
-static void lec_arp_expire_vcc(unsigned long data)
+static void lec_arp_expire_vcc(struct timer_list *t)
 {
        unsigned long flags;
-       struct lec_arp_table *to_remove = (struct lec_arp_table *)data;
+       struct lec_arp_table *to_remove = from_timer(to_remove, t, timer);
        struct lec_priv *priv = to_remove->priv;
 
        del_timer(&to_remove->timer);
@@ -1799,7 +1798,7 @@ static struct atm_vcc *lec_arp_resolve(struct lec_priv 
*priv,
                else
                        send_to_lecd(priv, l_arp_xmt, mac_to_find, NULL, NULL);
                entry->timer.expires = jiffies + (1 * HZ);
-               entry->timer.function = lec_arp_expire_arp;
+               entry->timer.function = (TIMER_FUNC_TYPE)lec_arp_expire_arp;
                add_timer(&entry->timer);
                found = priv->mcast_vcc;
        }
@@ -1999,7 +1998,7 @@ lec_vcc_added(struct lec_priv *priv, const struct 
atmlec_ioc *ioc_data,
                entry->old_recv_push = old_push;
                entry->status = ESI_UNKNOWN;
                entry->timer.expires = jiffies + priv->vcc_timeout_period;
-               entry->timer.function = lec_arp_expire_vcc;
+               entry->timer.function = (TIMER_FUNC_TYPE)lec_arp_expire_vcc;
                hlist_add_head(&entry->next, &priv->lec_no_forward);
                add_timer(&entry->timer);
                dump_arp_table(priv);
@@ -2083,7 +2082,7 @@ lec_vcc_added(struct lec_priv *priv, const struct 
atmlec_ioc *ioc_data,
        entry->status = ESI_UNKNOWN;
        hlist_add_head(&entry->next, &priv->lec_arp_empty_ones);
        entry->timer.expires = jiffies + priv->vcc_timeout_period;
-       entry->timer.function = lec_arp_expire_vcc;
+       entry->timer.function = (TIMER_FUNC_TYPE)lec_arp_expire_vcc;
        add_timer(&entry->timer);
        pr_debug("After vcc was added\n");
        dump_arp_table(priv);
diff --git a/net/atm/mpc.c b/net/atm/mpc.c
index 3b59a053b7cb..4c0d5d614b87 100644
--- a/net/atm/mpc.c
+++ b/net/atm/mpc.c
@@ -800,7 +800,6 @@ static int atm_mpoa_mpoad_attach(struct atm_vcc *vcc, int 
arg)
        int err;
 
        if (mpcs == NULL) {
-               init_timer(&mpc_timer);
                mpc_timer_refresh();
 
                /* This lets us now how our LECs are doing */
-- 
2.7.4

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