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cfg80211: add request id to cfg80211_sched_scan_*() api

Browse Source 
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 <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Arend Van Spriel 2017-04-28 13:40:28 +01:00 committed by Johannes Berg
parent e38a017bf0
commit b34939b983
16 changed files with 77 additions and 59 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/ath/ath6kl/cfg80211.c
View File

@ -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,

2
drivers/net/wireless/ath/ath6kl/wmi.c
View File

@ -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,

4
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
View File

@ -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 @@ brcmf_notify_sched_scan_results(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;

6
drivers/net/wireless/marvell/mwifiex/cfg80211.c
View File

@ -2053,7 +2053,7 @@ mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
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 @@ mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
(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 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy,
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)

2
drivers/net/wireless/marvell/mwifiex/main.c
View File

@ -748,7 +748,7 @@ mwifiex_close(struct net_device *dev)
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;

2
drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
View File

@ -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;

2
drivers/net/wireless/marvell/mwifiex/sta_event.c
View File

@ -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;

2
drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
View File

@ -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

11
include/net/cfg80211.h
View File

@ -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

2
net/mac80211/pm.c
View File

@ -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)

4
net/mac80211/scan.c
View File

@ -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)

2
net/mac80211/util.c
View File

@ -2112,7 +2112,7 @@ 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) {

2
net/wireless/core.c
View File

@ -456,7 +456,6 @@ use_default_name:
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 @@ use_default_name:
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);

4
net/wireless/core.h
View File

@ -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;
@ -412,7 +412,7 @@ 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);

63
net/wireless/scan.c
View File

@ -328,7 +328,7 @@ cfg80211_find_sched_scan_req(struct cfg80211_registered_device *rdev, u64 reqid)
if (pos->reqid == reqid)
return pos;
}
return ERR_PTR(-ENOENT);
return NULL;
}
/*
@ -364,67 +364,66 @@ 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 +455,8 @@ 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);

26
net/wireless/trace.h
View File

@ -2820,14 +2820,28 @@ TRACE_EVENT(cfg80211_scan_done,
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,