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authorArend Van Spriel <arend.vanspriel@broadcom.com>2017-04-28 15:40:28 +0300
committerJohannes Berg <johannes.berg@intel.com>2017-04-28 15:51:43 +0300
commitb34939b9836950d261610132853311054b507247 (patch)
tree40633166421ba87b1e263498d13d3f6f2f16bb2a /net/wireless/scan.c
parente38a017bf080d47376db340e94b9c2ffc47eb9b4 (diff)
downloadlinux-b34939b9836950d261610132853311054b507247.tar.xz
cfg80211: add request id to cfg80211_sched_scan_*() api
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>
Diffstat (limited to 'net/wireless/scan.c')
-rw-r--r--net/wireless/scan.c63
1 files changed, 31 insertions, 32 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 8d86f704bcf3..14d5f0c8c45f 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -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);