kernel.git/net/mac80211/scan.c, branch linux-4.1.y

mac80211: Requeue work after scan complete for all VIF types.

2016-02-15T20:45:27Z

[ Upstream commit 4fa11ec726a32ea6dd768dbb2e2af3453a98ec0a ] During a sw scan ieee80211_iface_work ignores work items for all vifs. However after the scan complete work is requeued only for STA, ADHOC and MESH iftypes. This occasionally results in event processing getting delayed/not processed for iftype AP when it coexists with a STA. This can result in data halt and eventually disconnection on the AP interface. Cc: stable@vger.kernel.org Signed-off-by: Sachin Kulkarni Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

mac80211: IBSS fix scan request

2015-03-30T08:47:56Z

In case of wide bandwidth (wider than 20MHz) used by IBSS, scan all channels in chandef to be able to find neighboring IBSS netwqworks that use the same overall channels but a different control channel. Signed-off-by: Janusz Dziedzic Signed-off-by: Johannes Berg

mac80211: complete scan work immediately if quiesced or suspended

2015-01-23T09:54:22Z

It is possible that a deferred scan is queued after the queues are flushed in __ieee80211_suspend(). The deferred scan work may be scheduled by ROC or ieee80211_stop_poll(). To make sure don't start a new scan while suspending, check whether we're quiescing or suspended and complete the scan immediately if that's the case. Signed-off-by: Luciano Coelho Signed-off-by: Johannes Berg

mac80211: don't defer scans in case of radar detection

2015-01-14T08:37:07Z

Radar detection can last indefinite time. There is no point in deferring a scan request in this case - simply return -EBUSY. Signed-off-by: Eliad Peller Signed-off-by: Johannes Berg

mac80211: remove local->radar_detect_enabled

2015-01-14T08:37:06Z

local->radar_detect_enabled should tell whether radar_detect is enabled on any interface belonging to local. However, it's not getting updated correctly in many cases (actually, when testing with hwsim it's never been set, even when the dfs master is beaconing). Instead of handling all the corner cases (e.g. channel switch), simply check whether radar detection is enabled only when needed, instead of caching the result. Signed-off-by: Eliad Peller Signed-off-by: Johannes Berg

mac80211: let flush() drop packets when possible

2015-01-14T08:31:18Z

When roaming / suspending, it makes no sense to wait until the transmit queues of the device are empty. In extreme condition they can be starved (VO saturating the air), but even in regular cases, it is pointless to delay the roaming because the low level driver is trying to send packets to an AP which is far away. We'd rather drop these packets and let TCP retransmit if needed. This will allow to speed up the roaming. For suspend, the explanation is even more trivial. Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg

mac80211: allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR

2014-11-19T17:46:09Z

Allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR with software based scanning and generate a random MAC address for them for every scan request with the flag. Signed-off-by: Johannes Berg

mac80211: rcu-ify scan and scheduled scan request pointers

2014-11-19T17:45:58Z

In order to use the scan and scheduled scan request pointers during RX to check for randomisation, make them accessible using RCU. Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg

mac80211: remove redundant check

2014-11-19T17:45:48Z

local->scan_req was tested in the previous line, so it can't be NULL. Signed-off-by: Eliad Peller Signed-off-by: Johannes Berg

mac80211: add Intel Mobile Communications copyright

2014-09-05T11:52:06Z

Our legal structure changed at some point (see wikipedia), but we forgot to immediately switch over to the new copyright notice. For files that we have modified in the time since the change, add the proper copyright notice now. Signed-off-by: Johannes Berg Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg