Have proper request id filled in the SCHED_SCAN_RESULTS and SCHED_SCAN_STOPPED notifications toward user-space by having the driver provide it through the api.
Reviewed-by: Hante Meuleman <[email protected]> Reviewed-by: Pieter-Paul Giesberts <[email protected]> Reviewed-by: Franky Lin <[email protected]> Signed-off-by: Arend van Spriel <[email protected]> --- Hi Johannes, Able to give it a spin on my test equipment and it passed so here it is. Did not see the pull-request so .... Regards, Arend changed since: V4: - move result work to struct registered_device. - return valid pointer or NULL in sched-scan search function. --- drivers/net/wireless/ath/ath6kl/cfg80211.c | 2 +- drivers/net/wireless/ath/ath6kl/wmi.c | 2 +- .../broadcom/brcm80211/brcmfmac/cfg80211.c | 4 +- drivers/net/wireless/marvell/mwifiex/cfg80211.c | 6 +-- drivers/net/wireless/marvell/mwifiex/main.c | 2 +- drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c | 2 +- drivers/net/wireless/marvell/mwifiex/sta_event.c | 2 +- drivers/net/wireless/marvell/mwifiex/sta_ioctl.c | 2 +- include/net/cfg80211.h | 11 ++-- net/mac80211/pm.c | 2 +- net/mac80211/scan.c | 4 +- net/mac80211/util.c | 2 +- net/wireless/core.c | 2 +- net/wireless/core.h | 4 +- net/wireless/scan.c | 62 +++++++++++----------- net/wireless/trace.h | 26 ++++++--- 16 files changed, 77 insertions(+), 58 deletions(-) diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c index fd53ffb..decb937 100644 --- a/drivers/net/wireless/ath/ath6kl/cfg80211.c +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c @@ -169,7 +169,7 @@ static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif) if (!stopped) return; - cfg80211_sched_scan_stopped(ar->wiphy); + cfg80211_sched_scan_stopped(ar->wiphy, 0); } static int ath6kl_set_wpa_version(struct ath6kl_vif *vif, diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c index a082de8..bfc20b4 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.c +++ b/drivers/net/wireless/ath/ath6kl/wmi.c @@ -1082,7 +1082,7 @@ void ath6kl_wmi_sscan_timer(unsigned long ptr) { struct ath6kl_vif *vif = (struct ath6kl_vif *) ptr; - cfg80211_sched_scan_results(vif->ar->wiphy); + cfg80211_sched_scan_results(vif->ar->wiphy, 0); } static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len, diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index 130f0d4..089b6e0 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -762,7 +762,7 @@ s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg, brcmf_dbg(SCAN, "scheduled scan completed\n"); cfg->internal_escan = false; if (!aborted) - cfg80211_sched_scan_results(cfg_to_wiphy(cfg)); + cfg80211_sched_scan_results(cfg_to_wiphy(cfg), 0); } else if (scan_request) { struct cfg80211_scan_info info = { .aborted = aborted, @@ -3372,7 +3372,7 @@ static int brcmf_start_internal_escan(struct brcmf_if *ifp, goto free_req; out_err: - cfg80211_sched_scan_stopped(wiphy); + cfg80211_sched_scan_stopped(wiphy, 0); free_req: kfree(request); return err; diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c index 0406a98..7ec06bf 100644 --- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c +++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c @@ -2053,7 +2053,7 @@ static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy, struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); if (!mwifiex_stop_bg_scan(priv)) - cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy); + cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0); if (mwifiex_deauthenticate(priv, NULL)) return -EFAULT; @@ -2321,7 +2321,7 @@ static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) (int)sme->ssid_len, (char *)sme->ssid, sme->bssid); if (!mwifiex_stop_bg_scan(priv)) - cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy); + cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0); ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, priv->bss_mode, sme->channel, sme, 0); @@ -2530,7 +2530,7 @@ static int mwifiex_set_ibss_params(struct mwifiex_private *priv, priv->scan_block = false; if (!mwifiex_stop_bg_scan(priv)) - cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy); + cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0); user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL); if (!user_scan_cfg) diff --git a/drivers/net/wireless/marvell/mwifiex/main.c b/drivers/net/wireless/marvell/mwifiex/main.c index 976011d..dd87b9f 100644 --- a/drivers/net/wireless/marvell/mwifiex/main.c +++ b/drivers/net/wireless/marvell/mwifiex/main.c @@ -748,7 +748,7 @@ static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter, mwifiex_dbg(priv->adapter, INFO, "aborting bgscan on ndo_stop\n"); mwifiex_stop_bg_scan(priv); - cfg80211_sched_scan_stopped(priv->wdev.wiphy); + cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0); } return 0; diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c index ab75da3..f1d1f56f 100644 --- a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c +++ b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c @@ -1201,7 +1201,7 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no, break; case HostCmd_CMD_802_11_BG_SCAN_QUERY: ret = mwifiex_ret_802_11_scan(priv, resp); - cfg80211_sched_scan_results(priv->wdev.wiphy); + cfg80211_sched_scan_results(priv->wdev.wiphy, 0); mwifiex_dbg(adapter, CMD, "info: CMD_RESP: BG_SCAN result is ready!\n"); break; diff --git a/drivers/net/wireless/marvell/mwifiex/sta_event.c b/drivers/net/wireless/marvell/mwifiex/sta_event.c index b5b7664..839df8a 100644 --- a/drivers/net/wireless/marvell/mwifiex/sta_event.c +++ b/drivers/net/wireless/marvell/mwifiex/sta_event.c @@ -793,7 +793,7 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv) case EVENT_BG_SCAN_STOPPED: dev_dbg(adapter->dev, "event: BGS_STOPPED\n"); - cfg80211_sched_scan_stopped(priv->wdev.wiphy); + cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0); if (priv->sched_scanning) priv->sched_scanning = false; break; diff --git a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c index 1532ac9..42997e0 100644 --- a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c +++ b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c @@ -560,7 +560,7 @@ int mwifiex_enable_hs(struct mwifiex_adapter *adapter) #endif mwifiex_dbg(adapter, CMD, "aborting bgscan!\n"); mwifiex_stop_bg_scan(priv); - cfg80211_sched_scan_stopped(priv->wdev.wiphy); + cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0); #ifdef CONFIG_PM } #endif diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index e427189..a783f66 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1666,6 +1666,7 @@ struct cfg80211_bss_select_adjust { * (others are filtered out). * If ommited, all results are passed. * @n_match_sets: number of match sets + * @results_wk: worker for processing results notification. * @wiphy: the wiphy this was for * @dev: the interface * @scan_start: start time of the scheduled scan @@ -1726,6 +1727,7 @@ struct cfg80211_sched_scan_request { struct wiphy *wiphy; struct net_device *dev; unsigned long scan_start; + bool report_results; struct rcu_head rcu_head; u32 owner_nlportid; bool nl_owner_dead; @@ -4564,31 +4566,34 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, * cfg80211_sched_scan_results - notify that new scan results are available * * @wiphy: the wiphy which got scheduled scan results + * @reqid: identifier for the related scheduled scan request */ -void cfg80211_sched_scan_results(struct wiphy *wiphy); +void cfg80211_sched_scan_results(struct wiphy *wiphy, u64 reqid); /** * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped * * @wiphy: the wiphy on which the scheduled scan stopped + * @reqid: identifier for the related scheduled scan request * * The driver can call this function to inform cfg80211 that the * scheduled scan had to be stopped, for whatever reason. The driver * is then called back via the sched_scan_stop operation when done. */ -void cfg80211_sched_scan_stopped(struct wiphy *wiphy); +void cfg80211_sched_scan_stopped(struct wiphy *wiphy, u64 reqid); /** * cfg80211_sched_scan_stopped_rtnl - notify that the scheduled scan has stopped * * @wiphy: the wiphy on which the scheduled scan stopped + * @reqid: identifier for the related scheduled scan request * * The driver can call this function to inform cfg80211 that the * scheduled scan had to be stopped, for whatever reason. The driver * is then called back via the sched_scan_stop operation when done. * This function should be called with rtnl locked. */ -void cfg80211_sched_scan_stopped_rtnl(struct wiphy *wiphy); +void cfg80211_sched_scan_stopped_rtnl(struct wiphy *wiphy, u64 reqid); /** * cfg80211_inform_bss_frame_data - inform cfg80211 of a received BSS frame diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index 76a8bcd..a87d195 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -10,7 +10,7 @@ static void ieee80211_sched_scan_cancel(struct ieee80211_local *local) { if (ieee80211_request_sched_scan_stop(local)) return; - cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy); + cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy, 0); } int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index faab3c4..94be10e 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -1219,7 +1219,7 @@ void ieee80211_sched_scan_results(struct ieee80211_hw *hw) trace_api_sched_scan_results(local); - cfg80211_sched_scan_results(hw->wiphy); + cfg80211_sched_scan_results(hw->wiphy, 0); } EXPORT_SYMBOL(ieee80211_sched_scan_results); @@ -1239,7 +1239,7 @@ void ieee80211_sched_scan_end(struct ieee80211_local *local) mutex_unlock(&local->mtx); - cfg80211_sched_scan_stopped(local->hw.wiphy); + cfg80211_sched_scan_stopped(local->hw.wiphy, 0); } void ieee80211_sched_scan_stopped_work(struct work_struct *work) diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 37dad3d..d17b3ad 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -2103,7 +2103,7 @@ int ieee80211_reconfig(struct ieee80211_local *local) mutex_unlock(&local->mtx); if (sched_scan_stopped) - cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy); + cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy, 0); wake_up: if (local->in_reconfig) { diff --git a/net/wireless/core.c b/net/wireless/core.c index a3c0c48a..83ea164 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -456,7 +456,6 @@ struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv, INIT_LIST_HEAD(&rdev->bss_list); INIT_LIST_HEAD(&rdev->sched_scan_req_list); INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done); - INIT_WORK(&rdev->sched_scan_results_wk, __cfg80211_sched_scan_results); INIT_LIST_HEAD(&rdev->mlme_unreg); spin_lock_init(&rdev->mlme_unreg_lock); INIT_WORK(&rdev->mlme_unreg_wk, cfg80211_mlme_unreg_wk); @@ -473,6 +472,7 @@ struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv, INIT_WORK(&rdev->destroy_work, cfg80211_destroy_iface_wk); INIT_WORK(&rdev->sched_scan_stop_wk, cfg80211_sched_scan_stop_wk); + INIT_WORK(&rdev->sched_scan_res_wk, cfg80211_sched_scan_results_wk); INIT_WORK(&rdev->propagate_radar_detect_wk, cfg80211_propagate_radar_detect_wk); INIT_WORK(&rdev->propagate_cac_done_wk, cfg80211_propagate_cac_done_wk); diff --git a/net/wireless/core.h b/net/wireless/core.h index 06eaf96..c9445b5 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -77,7 +77,6 @@ struct cfg80211_registered_device { struct list_head sched_scan_req_list; unsigned long suspend_at; struct work_struct scan_done_wk; - struct work_struct sched_scan_results_wk; struct genl_info *cur_cmd_info; @@ -93,6 +92,7 @@ struct cfg80211_registered_device { struct work_struct destroy_work; struct work_struct sched_scan_stop_wk; + struct work_struct sched_scan_res_wk; struct cfg80211_chan_def radar_chandef; struct work_struct propagate_radar_detect_wk; @@ -420,7 +420,7 @@ void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev, struct cfg80211_sched_scan_request *req); int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev, bool want_multi); -void __cfg80211_sched_scan_results(struct work_struct *wk); +void cfg80211_sched_scan_results_wk(struct work_struct *work); int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev, struct cfg80211_sched_scan_request *req, bool driver_initiated); diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 8d86f70..5278222 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -328,7 +328,7 @@ static void cfg80211_del_sched_scan_req(struct cfg80211_registered_device *rdev, if (pos->reqid == reqid) return pos; } - return ERR_PTR(-ENOENT); + return NULL; } /* @@ -364,67 +364,67 @@ int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev, return 0; } -void __cfg80211_sched_scan_results(struct work_struct *wk) +void cfg80211_sched_scan_results_wk(struct work_struct *work) { struct cfg80211_registered_device *rdev; - struct cfg80211_sched_scan_request *request; + struct cfg80211_sched_scan_request *req, *tmp; - rdev = container_of(wk, struct cfg80211_registered_device, - sched_scan_results_wk); + rdev = container_of(work, struct cfg80211_registered_device, + sched_scan_res_wk); rtnl_lock(); - - request = cfg80211_find_sched_scan_req(rdev, 0); - - /* we don't have sched_scan_req anymore if the scan is stopping */ - if (!IS_ERR(request)) { - if (request->flags & NL80211_SCAN_FLAG_FLUSH) { - /* flush entries from previous scans */ - spin_lock_bh(&rdev->bss_lock); - __cfg80211_bss_expire(rdev, request->scan_start); - spin_unlock_bh(&rdev->bss_lock); - request->scan_start = jiffies; + list_for_each_entry_safe(req, tmp, &rdev->sched_scan_req_list, list) { + if (req->report_results) { + req->report_results = false; + if (req->flags & NL80211_SCAN_FLAG_FLUSH) { + /* flush entries from previous scans */ + spin_lock_bh(&rdev->bss_lock); + __cfg80211_bss_expire(rdev, req->scan_start); + spin_unlock_bh(&rdev->bss_lock); + req->scan_start = jiffies; + } + nl80211_send_sched_scan(req, + NL80211_CMD_SCHED_SCAN_RESULTS); } - nl80211_send_sched_scan(request, NL80211_CMD_SCHED_SCAN_RESULTS); } - rtnl_unlock(); } -void cfg80211_sched_scan_results(struct wiphy *wiphy) +void cfg80211_sched_scan_results(struct wiphy *wiphy, u64 reqid) { struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); struct cfg80211_sched_scan_request *request; - trace_cfg80211_sched_scan_results(wiphy); + trace_cfg80211_sched_scan_results(wiphy, reqid); /* ignore if we're not scanning */ rtnl_lock(); - request = cfg80211_find_sched_scan_req(rdev, 0); + request = cfg80211_find_sched_scan_req(rdev, reqid); + if (request) { + request->report_results = true; + queue_work(cfg80211_wq, &rdev->sched_scan_res_wk); + } rtnl_unlock(); - if (!IS_ERR(request)) - queue_work(cfg80211_wq, - &wiphy_to_rdev(wiphy)->sched_scan_results_wk); } EXPORT_SYMBOL(cfg80211_sched_scan_results); -void cfg80211_sched_scan_stopped_rtnl(struct wiphy *wiphy) +void cfg80211_sched_scan_stopped_rtnl(struct wiphy *wiphy, u64 reqid) { struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); ASSERT_RTNL(); - trace_cfg80211_sched_scan_stopped(wiphy); + trace_cfg80211_sched_scan_stopped(wiphy, reqid); - __cfg80211_stop_sched_scan(rdev, 0, true); + __cfg80211_stop_sched_scan(rdev, reqid, true); } EXPORT_SYMBOL(cfg80211_sched_scan_stopped_rtnl); -void cfg80211_sched_scan_stopped(struct wiphy *wiphy) +void cfg80211_sched_scan_stopped(struct wiphy *wiphy, u64 reqid) { rtnl_lock(); - cfg80211_sched_scan_stopped_rtnl(wiphy); + cfg80211_sched_scan_stopped_rtnl(wiphy, reqid); rtnl_unlock(); } EXPORT_SYMBOL(cfg80211_sched_scan_stopped); @@ -456,8 +456,8 @@ int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, ASSERT_RTNL(); sched_scan_req = cfg80211_find_sched_scan_req(rdev, reqid); - if (IS_ERR(sched_scan_req)) - return PTR_ERR(sched_scan_req); + if (!sched_scan_req) + return -ENOENT; return cfg80211_stop_sched_scan_req(rdev, sched_scan_req, driver_initiated); diff --git a/net/wireless/trace.h b/net/wireless/trace.h index 8d8f6b4..ca8b205 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -2820,14 +2820,28 @@ MAC_PR_ARG(tsf_bssid)) ); -DEFINE_EVENT(wiphy_only_evt, cfg80211_sched_scan_results, - TP_PROTO(struct wiphy *wiphy), - TP_ARGS(wiphy) +DECLARE_EVENT_CLASS(wiphy_id_evt, + TP_PROTO(struct wiphy *wiphy, u64 id), + TP_ARGS(wiphy, id), + TP_STRUCT__entry( + WIPHY_ENTRY + __field(u64, id) + ), + TP_fast_assign( + WIPHY_ASSIGN; + __entry->id = id; + ), + TP_printk(WIPHY_PR_FMT ", id: %llu", WIPHY_PR_ARG, __entry->id) ); -DEFINE_EVENT(wiphy_only_evt, cfg80211_sched_scan_stopped, - TP_PROTO(struct wiphy *wiphy), - TP_ARGS(wiphy) +DEFINE_EVENT(wiphy_id_evt, cfg80211_sched_scan_stopped, + TP_PROTO(struct wiphy *wiphy, u64 id), + TP_ARGS(wiphy, id) +); + +DEFINE_EVENT(wiphy_id_evt, cfg80211_sched_scan_results, + TP_PROTO(struct wiphy *wiphy, u64 id), + TP_ARGS(wiphy, id) ); TRACE_EVENT(cfg80211_get_bss, -- 1.9.1
