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wifi: mac80211: move scan work to wiphy work

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Move the scan work to wiphy work, which also simplifies
the way we handle the work vs. the scan configuration.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2023-08-28 13:59:39 +02:00
parent 228e4f931b
commit 201712512c
5 changed files with 18 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/mac80211/ieee80211_i.h
View File

@ -1496,7 +1496,7 @@ struct ieee80211_local {
unsigned long leave_oper_channel_time;
enum mac80211_scan_state next_scan_state;
struct delayed_work scan_work;
struct wiphy_delayed_work scan_work;
struct ieee80211_sub_if_data __rcu *scan_sdata;
/* For backward compatibility only -- do not use */
struct cfg80211_chan_def _oper_chandef;
@ -1935,7 +1935,7 @@ int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata,
u64 *changed);
/* scan/BSS handling */
void ieee80211_scan_work(struct work_struct *work);
void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work);
int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
const u8 *ssid, u8 ssid_len,
struct ieee80211_channel **channels,

2
net/mac80211/iface.c
View File

@ -690,7 +690,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do
ieee80211_recalc_ps(local);
if (cancel_scan)
flush_delayed_work(&local->scan_work);
wiphy_delayed_work_flush(local->hw.wiphy, &local->scan_work);
if (local->open_count == 0) {
ieee80211_stop_device(local);

4
net/mac80211/main.c
View File

@ -335,9 +335,7 @@ static void ieee80211_restart_work(struct work_struct *work)
struct ieee80211_sub_if_data *sdata;
int ret;
/* wait for scan work complete */
flush_workqueue(local->workqueue);
flush_work(&local->sched_scan_stopped_work);
rtnl_lock();
/* we might do interface manipulations, so need both */
@ -809,7 +807,7 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
INIT_LIST_HEAD(&local->chanctx_list);
mutex_init(&local->chanctx_mtx);
INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work);
wiphy_delayed_work_init(&local->scan_work, ieee80211_scan_work);
INIT_WORK(&local->restart_work, ieee80211_restart_work);

29
net/mac80211/scan.c
View File

@ -274,8 +274,8 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb)
* the beacon/proberesp rx gives us an opportunity to upgrade
* to active scan
*/
set_bit(SCAN_BEACON_DONE, &local->scanning);
ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0);
set_bit(SCAN_BEACON_DONE, &local->scanning);
wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0);
}
if (ieee80211_is_probe_resp(mgmt->frame_control)) {
@ -505,7 +505,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw,
memcpy(&local->scan_info, info, sizeof(*info));
ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0);
wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0);
}
EXPORT_SYMBOL(ieee80211_scan_completed);
@ -545,8 +545,7 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local,
/* We need to set power level at maximum rate for scanning. */
ieee80211_hw_config(local, 0);
ieee80211_queue_delayed_work(&local->hw,
&local->scan_work, 0);
wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0);
return 0;
}
@ -603,8 +602,8 @@ void ieee80211_run_deferred_scan(struct ieee80211_local *local)
lockdep_is_held(&local->mtx))))
return;
ieee80211_queue_delayed_work(&local->hw, &local->scan_work,
round_jiffies_relative(0));
wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work,
round_jiffies_relative(0));
}
static void ieee80211_send_scan_probe_req(struct ieee80211_sub_if_data *sdata,
@ -795,8 +794,8 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
}
/* Now, just wait a bit and we are all done! */
ieee80211_queue_delayed_work(&local->hw, &local->scan_work,
next_delay);
wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work,
next_delay);
return 0;
} else {
/* Do normal software scan */
@ -1043,7 +1042,7 @@ static void ieee80211_scan_state_resume(struct ieee80211_local *local,
local->next_scan_state = SCAN_SET_CHANNEL;
}
void ieee80211_scan_work(struct work_struct *work)
void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work)
{
struct ieee80211_local *local =
container_of(work, struct ieee80211_local, scan_work.work);
@ -1137,7 +1136,8 @@ void ieee80211_scan_work(struct work_struct *work)
}
} while (next_delay == 0);
ieee80211_queue_delayed_work(&local->hw, &local->scan_work, next_delay);
wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work,
next_delay);
goto out;
out_complete:
@ -1280,12 +1280,7 @@ void ieee80211_scan_cancel(struct ieee80211_local *local)
goto out;
}
/*
* If the work is currently running, it must be blocked on
* the mutex, but we'll set scan_sdata = NULL and it'll
* simply exit once it acquires the mutex.
*/
cancel_delayed_work(&local->scan_work);
wiphy_delayed_work_cancel(local->hw.wiphy, &local->scan_work);
/* and clean up */
memset(&local->scan_info, 0, sizeof(local->scan_info));
__ieee80211_scan_completed(&local->hw, true);

4
net/mac80211/util.c
View File

@ -2341,8 +2341,8 @@ static void ieee80211_flush_completed_scan(struct ieee80211_local *local,
*/
if (aborted)
set_bit(SCAN_ABORTED, &local->scanning);
ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0);
flush_delayed_work(&local->scan_work);
wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0);
wiphy_delayed_work_flush(local->hw.wiphy, &local->scan_work);
}
}