diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2021-10-27 12:03:42 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2021-11-19 11:38:50 +0300 |
| commit | 1507b153198137dfa9cb4bec7c5dee07089ec3af (patch) | |
| tree | 9df318f5c4fc51862693d50d4137762422f39443 /net/wireless/mlme.c | |
| parent | f5d32a7b10713427655a14d4777af7f598d3c1fa (diff) | |
| download | linux-1507b153198137dfa9cb4bec7c5dee07089ec3af.tar.xz | |
cfg80211: move offchan_cac_event to a dedicated work
In order to make cfg80211_offchan_cac_abort() (renamed from
cfg80211_offchan_cac_event) callable in other contexts and
without so much locking restrictions, make it trigger a new
work instead of operating directly.
Do some other renames while at it to clarify.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/6145c3d0f30400a568023f67981981d24c7c6133.1635325205.git.lorenzo@kernel.org
[rewrite commit log]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/mlme.c')
| -rw-r--r-- | net/wireless/mlme.c | 56 |
1 files changed, 36 insertions, 20 deletions
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index 46f2ec4d50d7..840795828d4f 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -971,17 +971,6 @@ void cfg80211_cac_event(struct net_device *netdev, } EXPORT_SYMBOL(cfg80211_cac_event); -void cfg80211_offchan_cac_work(struct work_struct *work) -{ - struct delayed_work *delayed_work = to_delayed_work(work); - struct cfg80211_registered_device *rdev; - - rdev = container_of(delayed_work, struct cfg80211_registered_device, - offchan_cac_work); - cfg80211_offchan_cac_event(&rdev->wiphy, &rdev->offchan_radar_chandef, - NL80211_RADAR_CAC_FINISHED); -} - static void __cfg80211_offchan_cac_event(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev, @@ -1006,7 +995,7 @@ __cfg80211_offchan_cac_event(struct cfg80211_registered_device *rdev, rdev->offchan_radar_wdev = NULL; break; case NL80211_RADAR_CAC_ABORTED: - cancel_delayed_work(&rdev->offchan_cac_work); + cancel_delayed_work(&rdev->offchan_cac_done_wk); wdev = rdev->offchan_radar_wdev; rdev->offchan_radar_wdev = NULL; break; @@ -1022,17 +1011,44 @@ __cfg80211_offchan_cac_event(struct cfg80211_registered_device *rdev, nl80211_radar_notify(rdev, chandef, event, netdev, GFP_KERNEL); } -void cfg80211_offchan_cac_event(struct wiphy *wiphy, - const struct cfg80211_chan_def *chandef, - enum nl80211_radar_event event) +static void +cfg80211_offchan_cac_event(struct cfg80211_registered_device *rdev, + const struct cfg80211_chan_def *chandef, + enum nl80211_radar_event event) +{ + wiphy_lock(&rdev->wiphy); + __cfg80211_offchan_cac_event(rdev, NULL, chandef, event); + wiphy_unlock(&rdev->wiphy); +} + +void cfg80211_offchan_cac_done_wk(struct work_struct *work) +{ + struct delayed_work *delayed_work = to_delayed_work(work); + struct cfg80211_registered_device *rdev; + + rdev = container_of(delayed_work, struct cfg80211_registered_device, + offchan_cac_done_wk); + cfg80211_offchan_cac_event(rdev, &rdev->offchan_radar_chandef, + NL80211_RADAR_CAC_FINISHED); +} + +void cfg80211_offchan_cac_abort_wk(struct work_struct *work) +{ + struct cfg80211_registered_device *rdev; + + rdev = container_of(work, struct cfg80211_registered_device, + offchan_cac_abort_wk); + cfg80211_offchan_cac_event(rdev, &rdev->offchan_radar_chandef, + NL80211_RADAR_CAC_ABORTED); +} + +void cfg80211_offchan_cac_abort(struct wiphy *wiphy) { struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); - wiphy_lock(wiphy); - __cfg80211_offchan_cac_event(rdev, NULL, chandef, event); - wiphy_unlock(wiphy); + queue_work(cfg80211_wq, &rdev->offchan_cac_abort_wk); } -EXPORT_SYMBOL(cfg80211_offchan_cac_event); +EXPORT_SYMBOL(cfg80211_offchan_cac_abort); int cfg80211_start_offchan_radar_detection(struct cfg80211_registered_device *rdev, @@ -1062,7 +1078,7 @@ cfg80211_start_offchan_radar_detection(struct cfg80211_registered_device *rdev, rdev->offchan_radar_chandef = *chandef; __cfg80211_offchan_cac_event(rdev, wdev, chandef, NL80211_RADAR_CAC_STARTED); - queue_delayed_work(cfg80211_wq, &rdev->offchan_cac_work, + queue_delayed_work(cfg80211_wq, &rdev->offchan_cac_done_wk, msecs_to_jiffies(cac_time_ms)); return 0; |