6.5-stable review patch. If anyone has any objections, please let me know.
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From: Johannes Berg johannes.berg@intel.com
[ Upstream commit 201712512cbbda360f62c222a4bab260350462a0 ]
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 Stable-dep-of: eadfb54756ae ("wifi: mac80211: move sched-scan stop work to wiphy work") Signed-off-by: Sasha Levin sashal@kernel.org --- net/mac80211/ieee80211_i.h | 4 ++-- net/mac80211/iface.c | 2 +- net/mac80211/main.c | 4 +--- net/mac80211/scan.c | 29 ++++++++++++----------------- net/mac80211/util.c | 4 ++-- 5 files changed, 18 insertions(+), 25 deletions(-)
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 90eda427e9ab8..fef9aea9ba958 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1490,7 +1490,7 @@ 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; @@ -1930,7 +1930,7 @@ 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, diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index be586bc0b5b7d..6e3bfb46af44d 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -691,7 +691,7 @@ 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); diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 3bbd66e5a0df0..adb8637a37445 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -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 */ @@ -808,7 +806,7 @@ 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);
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 0805aa8603c61..2117cb2a916ac 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -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); diff --git a/net/mac80211/util.c b/net/mac80211/util.c index e878b6a27651a..172173b2a9eb8 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -2340,8 +2340,8 @@ 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); } }