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mac80211: Convert timers to use timer_setup()

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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.

Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Kees Cook 2017-10-16 16:35:49 -07:00 committed by Johannes Berg
parent 32a72bbd5d
commit 34f11cd329
11 changed files with 50 additions and 59 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
net/mac80211/ibss.c
View File

@ -1711,10 +1711,10 @@ void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata)
sdata_unlock(sdata);
}
static void ieee80211_ibss_timer(unsigned long data)
static void ieee80211_ibss_timer(struct timer_list *t)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
from_timer(sdata, t, u.ibss.timer);
ieee80211_queue_work(&sdata->local->hw, &sdata->work);
}
@ -1723,8 +1723,7 @@ void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
setup_timer(&ifibss->timer, ieee80211_ibss_timer,
(unsigned long) sdata);
timer_setup(&ifibss->timer, ieee80211_ibss_timer, 0);
INIT_LIST_HEAD(&ifibss->incomplete_stations);
spin_lock_init(&ifibss->incomplete_lock);
INIT_WORK(&ifibss->csa_connection_drop_work,

3
net/mac80211/ieee80211_i.h
View File

@ -1057,6 +1057,7 @@ struct tpt_led_trigger {
const struct ieee80211_tpt_blink *blink_table;
unsigned int blink_table_len;
struct timer_list timer;
struct ieee80211_local *local;
unsigned long prev_traffic;
unsigned long tx_bytes, rx_bytes;
unsigned int active, want;
@ -1932,7 +1933,7 @@ static inline int ieee80211_ac_from_tid(int tid)
void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
void ieee80211_dynamic_ps_timer(unsigned long data);
void ieee80211_dynamic_ps_timer(struct timer_list *t);
void ieee80211_send_nullfunc(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
bool powersave);

11
net/mac80211/led.c
View File

@ -248,10 +248,10 @@ static unsigned long tpt_trig_traffic(struct ieee80211_local *local,
return DIV_ROUND_UP(delta, 1024 / 8);
}
static void tpt_trig_timer(unsigned long data)
static void tpt_trig_timer(struct timer_list *t)
{
struct ieee80211_local *local = (void *)data;
struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
struct tpt_led_trigger *tpt_trig = from_timer(tpt_trig, t, timer);
struct ieee80211_local *local = tpt_trig->local;
struct led_classdev *led_cdev;
unsigned long on, off, tpt;
int i;
@ -306,8 +306,9 @@ __ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw,
tpt_trig->blink_table = blink_table;
tpt_trig->blink_table_len = blink_table_len;
tpt_trig->want = flags;
tpt_trig->local = local;
setup_timer(&tpt_trig->timer, tpt_trig_timer, (unsigned long)local);
timer_setup(&tpt_trig->timer, tpt_trig_timer, 0);
local->tpt_led_trigger = tpt_trig;
@ -326,7 +327,7 @@ static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local)
tpt_trig_traffic(local, tpt_trig);
tpt_trig->running = true;
tpt_trig_timer((unsigned long)local);
tpt_trig_timer(&tpt_trig->timer);
mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ));
}

3
net/mac80211/main.c
View File

@ -633,8 +633,7 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
ieee80211_dynamic_ps_enable_work);
INIT_WORK(&local->dynamic_ps_disable_work,
ieee80211_dynamic_ps_disable_work);
setup_timer(&local->dynamic_ps_timer,
ieee80211_dynamic_ps_timer, (unsigned long) local);
timer_setup(&local->dynamic_ps_timer, ieee80211_dynamic_ps_timer, 0);
INIT_WORK(&local->sched_scan_stopped_work,
ieee80211_sched_scan_stopped_work);

27
net/mac80211/mesh.c
View File

@ -37,9 +37,10 @@ void ieee80211s_stop(void)
kmem_cache_destroy(rm_cache);
}
static void ieee80211_mesh_housekeeping_timer(unsigned long data)
static void ieee80211_mesh_housekeeping_timer(struct timer_list *t)
{
struct ieee80211_sub_if_data *sdata = (void *) data;
struct ieee80211_sub_if_data *sdata =
from_timer(sdata, t, u.mesh.housekeeping_timer);
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
@ -528,18 +529,18 @@ int mesh_add_vht_oper_ie(struct ieee80211_sub_if_data *sdata,
return 0;
}
static void ieee80211_mesh_path_timer(unsigned long data)
static void ieee80211_mesh_path_timer(struct timer_list *t)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
from_timer(sdata, t, u.mesh.mesh_path_timer);
ieee80211_queue_work(&sdata->local->hw, &sdata->work);
}
static void ieee80211_mesh_path_root_timer(unsigned long data)
static void ieee80211_mesh_path_root_timer(struct timer_list *t)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
from_timer(sdata, t, u.mesh.mesh_path_root_timer);
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags);
@ -1442,9 +1443,8 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
static u8 zero_addr[ETH_ALEN] = {};
setup_timer(&ifmsh->housekeeping_timer,
ieee80211_mesh_housekeeping_timer,
(unsigned long) sdata);
timer_setup(&ifmsh->housekeeping_timer,
ieee80211_mesh_housekeeping_timer, 0);
ifmsh->accepting_plinks = true;
atomic_set(&ifmsh->mpaths, 0);
@ -1458,12 +1458,9 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
mesh_pathtbl_init(sdata);
setup_timer(&ifmsh->mesh_path_timer,
ieee80211_mesh_path_timer,
(unsigned long) sdata);
setup_timer(&ifmsh->mesh_path_root_timer,
ieee80211_mesh_path_root_timer,
(unsigned long) sdata);
timer_setup(&ifmsh->mesh_path_timer, ieee80211_mesh_path_timer, 0);
timer_setup(&ifmsh->mesh_path_root_timer,
ieee80211_mesh_path_root_timer, 0);
INIT_LIST_HEAD(&ifmsh->preq_queue.list);
skb_queue_head_init(&ifmsh->ps.bc_buf);
spin_lock_init(&ifmsh->mesh_preq_queue_lock);

2
net/mac80211/mesh.h
View File

@ -296,7 +296,7 @@ void mesh_path_tx_pending(struct mesh_path *mpath);
int mesh_pathtbl_init(struct ieee80211_sub_if_data *sdata);
void mesh_pathtbl_unregister(struct ieee80211_sub_if_data *sdata);
int mesh_path_del(struct ieee80211_sub_if_data *sdata, const u8 *addr);
void mesh_path_timer(unsigned long data);
void mesh_path_timer(struct timer_list *t);
void mesh_path_flush_by_nexthop(struct sta_info *sta);
void mesh_path_discard_frame(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb);

4
net/mac80211/mesh_hwmp.c
View File

@ -1194,9 +1194,9 @@ endlookup:
return err;
}
void mesh_path_timer(unsigned long data)
void mesh_path_timer(struct timer_list *t)
{
struct mesh_path *mpath = (void *) data;
struct mesh_path *mpath = from_timer(mpath, t, timer);
struct ieee80211_sub_if_data *sdata = mpath->sdata;
int ret;

3
net/mac80211/mesh_pathtbl.c
View File

@ -399,8 +399,7 @@ struct mesh_path *mesh_path_new(struct ieee80211_sub_if_data *sdata,
skb_queue_head_init(&new_mpath->frame_queue);
new_mpath->exp_time = jiffies;
spin_lock_init(&new_mpath->state_lock);
setup_timer(&new_mpath->timer, mesh_path_timer,
(unsigned long) new_mpath);
timer_setup(&new_mpath->timer, mesh_path_timer, 0);
return new_mpath;
}

32
net/mac80211/mlme.c
View File

@ -1066,10 +1066,10 @@ void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success)
}
EXPORT_SYMBOL(ieee80211_chswitch_done);
static void ieee80211_chswitch_timer(unsigned long data)
static void ieee80211_chswitch_timer(struct timer_list *t)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
from_timer(sdata, t, u.mgd.chswitch_timer);
ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.chswitch_work);
}
@ -1577,9 +1577,9 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
}
}
void ieee80211_dynamic_ps_timer(unsigned long data)
void ieee80211_dynamic_ps_timer(struct timer_list *t)
{
struct ieee80211_local *local = (void *) data;
struct ieee80211_local *local = from_timer(local, t, dynamic_ps_timer);
ieee80211_queue_work(&local->hw, &local->dynamic_ps_enable_work);
}
@ -3711,10 +3711,10 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
sdata_unlock(sdata);
}
static void ieee80211_sta_timer(unsigned long data)
static void ieee80211_sta_timer(struct timer_list *t)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
from_timer(sdata, t, u.mgd.timer);
ieee80211_queue_work(&sdata->local->hw, &sdata->work);
}
@ -3991,10 +3991,10 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
sdata_unlock(sdata);
}
static void ieee80211_sta_bcn_mon_timer(unsigned long data)
static void ieee80211_sta_bcn_mon_timer(struct timer_list *t)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
from_timer(sdata, t, u.mgd.bcn_mon_timer);
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
if (sdata->vif.csa_active && !ifmgd->csa_waiting_bcn)
@ -4005,10 +4005,10 @@ static void ieee80211_sta_bcn_mon_timer(unsigned long data)
&sdata->u.mgd.beacon_connection_loss_work);
}
static void ieee80211_sta_conn_mon_timer(unsigned long data)
static void ieee80211_sta_conn_mon_timer(struct timer_list *t)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
from_timer(sdata, t, u.mgd.conn_mon_timer);
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
@ -4139,14 +4139,10 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
INIT_WORK(&ifmgd->request_smps_work, ieee80211_request_smps_mgd_work);
INIT_DELAYED_WORK(&ifmgd->tdls_peer_del_work,
ieee80211_tdls_peer_del_work);
setup_timer(&ifmgd->timer, ieee80211_sta_timer,
(unsigned long) sdata);
setup_timer(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer,
(unsigned long) sdata);
setup_timer(&ifmgd->conn_mon_timer, ieee80211_sta_conn_mon_timer,
(unsigned long) sdata);
setup_timer(&ifmgd->chswitch_timer, ieee80211_chswitch_timer,
(unsigned long) sdata);
timer_setup(&ifmgd->timer, ieee80211_sta_timer, 0);
timer_setup(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer, 0);
timer_setup(&ifmgd->conn_mon_timer, ieee80211_sta_conn_mon_timer, 0);
timer_setup(&ifmgd->chswitch_timer, ieee80211_chswitch_timer, 0);
INIT_DELAYED_WORK(&ifmgd->tx_tspec_wk,
ieee80211_sta_handle_tspec_ac_params_wk);

10
net/mac80211/ocb.c
View File

@ -150,9 +150,10 @@ void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata)
sdata_unlock(sdata);
}
static void ieee80211_ocb_housekeeping_timer(unsigned long data)
static void ieee80211_ocb_housekeeping_timer(struct timer_list *t)
{
struct ieee80211_sub_if_data *sdata = (void *)data;
struct ieee80211_sub_if_data *sdata =
from_timer(sdata, t, u.ocb.housekeeping_timer);
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_ocb *ifocb = &sdata->u.ocb;
@ -165,9 +166,8 @@ void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_ocb *ifocb = &sdata->u.ocb;
setup_timer(&ifocb->housekeeping_timer,
ieee80211_ocb_housekeeping_timer,
(unsigned long)sdata);
timer_setup(&ifocb->housekeeping_timer,
ieee80211_ocb_housekeeping_timer, 0);
INIT_LIST_HEAD(&ifocb->incomplete_stations);
spin_lock_init(&ifocb->incomplete_lock);
}

7
net/mac80211/sta_info.c
View File

@ -1064,9 +1064,9 @@ int sta_info_destroy_addr_bss(struct ieee80211_sub_if_data *sdata,
return ret;
}
static void sta_info_cleanup(unsigned long data)
static void sta_info_cleanup(struct timer_list *t)
{
struct ieee80211_local *local = (struct ieee80211_local *) data;
struct ieee80211_local *local = from_timer(local, t, sta_cleanup);
struct sta_info *sta;
bool timer_needed = false;
@ -1098,8 +1098,7 @@ int sta_info_init(struct ieee80211_local *local)
mutex_init(&local->sta_mtx);
INIT_LIST_HEAD(&local->sta_list);
setup_timer(&local->sta_cleanup, sta_info_cleanup,
(unsigned long)local);
timer_setup(&local->sta_cleanup, sta_info_cleanup, 0);
return 0;
}