diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/wireless/core.h | 1 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 50 |
2 files changed, 32 insertions, 19 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h index e1accacc6f23..ee980965a7cf 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -297,6 +297,7 @@ struct cfg80211_cqm_config { u32 rssi_hyst; s32 last_rssi_event_value; enum nl80211_cqm_rssi_threshold_event last_rssi_event_type; + bool use_range_api; int n_rssi_thresholds; s32 rssi_thresholds[]; }; diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index b19b5acfaf3a..42c858219b34 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -12574,10 +12574,6 @@ static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev, int i, n, low_index; int err; - /* RSSI reporting disabled? */ - if (!cqm_config) - return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0); - /* * Obtain current RSSI value if possible, if not and no RSSI threshold * event has been received yet, we should receive an event after a @@ -12652,18 +12648,6 @@ static int nl80211_set_cqm_rssi(struct genl_info *info, wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) return -EOPNOTSUPP; - if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) { - if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */ - return rdev_set_cqm_rssi_config(rdev, dev, 0, 0); - - return rdev_set_cqm_rssi_config(rdev, dev, - thresholds[0], hysteresis); - } - - if (!wiphy_ext_feature_isset(&rdev->wiphy, - NL80211_EXT_FEATURE_CQM_RSSI_LIST)) - return -EOPNOTSUPP; - if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */ n_thresholds = 0; @@ -12671,6 +12655,20 @@ static int nl80211_set_cqm_rssi(struct genl_info *info, old = rcu_dereference_protected(wdev->cqm_config, lockdep_is_held(&wdev->mtx)); + /* if already disabled just succeed */ + if (!n_thresholds && !old) + return 0; + + if (n_thresholds > 1) { + if (!wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_CQM_RSSI_LIST) || + !rdev->ops->set_cqm_rssi_range_config) + return -EOPNOTSUPP; + } else { + if (!rdev->ops->set_cqm_rssi_config) + return -EOPNOTSUPP; + } + if (n_thresholds) { cqm_config = kzalloc(struct_size(cqm_config, rssi_thresholds, n_thresholds), @@ -12685,13 +12683,26 @@ static int nl80211_set_cqm_rssi(struct genl_info *info, memcpy(cqm_config->rssi_thresholds, thresholds, flex_array_size(cqm_config, rssi_thresholds, n_thresholds)); + cqm_config->use_range_api = n_thresholds > 1 || + !rdev->ops->set_cqm_rssi_config; rcu_assign_pointer(wdev->cqm_config, cqm_config); + + if (cqm_config->use_range_api) + err = cfg80211_cqm_rssi_update(rdev, dev, cqm_config); + else + err = rdev_set_cqm_rssi_config(rdev, dev, + thresholds[0], + hysteresis); } else { RCU_INIT_POINTER(wdev->cqm_config, NULL); + /* if enabled as range also disable via range */ + if (old->use_range_api) + err = rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0); + else + err = rdev_set_cqm_rssi_config(rdev, dev, 0, 0); } - err = cfg80211_cqm_rssi_update(rdev, dev, cqm_config); if (err) { rcu_assign_pointer(wdev->cqm_config, old); kfree_rcu(cqm_config, rcu_head); @@ -18758,10 +18769,11 @@ void cfg80211_cqm_rssi_notify_work(struct wiphy *wiphy, struct wiphy_work *work) wdev_lock(wdev); cqm_config = rcu_dereference_protected(wdev->cqm_config, lockdep_is_held(&wdev->mtx)); - if (!wdev->cqm_config) + if (!cqm_config) goto unlock; - cfg80211_cqm_rssi_update(rdev, wdev->netdev, cqm_config); + if (cqm_config->use_range_api) + cfg80211_cqm_rssi_update(rdev, wdev->netdev, cqm_config); rssi_level = cqm_config->last_rssi_event_value; rssi_event = cqm_config->last_rssi_event_type; |