kernel.git/net/mac80211/scan.c, branch linux-3.7.y

mac80211: synchronize scan off/on-channel and PS states

2013-02-04T00:27:02Z

commit aacde9ee45225f7e0b90960f479aef83c66bfdc0 upstream. Since: commit b23b025fe246f3acc2988eb6d400df34c27cb8ae Author: Ben Greear Date: Fri Feb 4 11:54:17 2011 -0800 mac80211: Optimize scans on current operating channel. we do not disable PS while going back to operational channel (on ieee80211_scan_state_suspend) and deffer that until scan finish. But since we are allowed to send frames, we can send a frame to AP without PM bit set, so disable PS on AP side. Then when we switch to off-channel (in ieee80211_scan_state_resume) we do not enable PS. Hence we are off-channel with PS disabled, frames are not buffered by AP. To fix remove offchannel_ps_disable argument and always enable PS when going off-channel and disable it when going on-channel, like it was before. Signed-off-by: Stanislaw Gruszka Tested-by: Seth Forshee Signed-off-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman

mac80211: fix ibss scanning

2013-01-17T16:46:36Z

commit 34bcf71502413f8903ade93746f2d0f04b937a78 upstream. Do not scan on no-IBSS and disabled channels in IBSS mode. Doing this can trigger Microcode errors on iwlwifi and iwlegacy drivers. Also rename ieee80211_request_internal_scan() function since it is only used in IBSS mode and simplify calling it from ieee80211_sta_find_ibss(). This patch should address: https://bugzilla.redhat.com/show_bug.cgi?id=883414 https://bugzilla.kernel.org/show_bug.cgi?id=49411 Reported-by: Jesse Kahtava Reported-by: Mikko Rapeli Signed-off-by: Stanislaw Gruszka Signed-off-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman

mac80211: init sched_scan_ies

2012-10-31T16:04:18Z

In case that there is an unsupported band, the ie will be unallocated and the free will crash. Cc: stable@vger.kernel.org Signed-off-by: David Spinadel Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg

net/mac80211/scan.c: removes unnecessary semicolon

2012-09-07T11:30:06Z

removes unnecessary semicolon Found by Coccinelle: http://coccinelle.lip6.fr/ Signed-off-by: Peter Senna Tschudin Signed-off-by: Johannes Berg

mac80211: don't hang on to sched_scan_ies

2012-09-06T13:56:35Z

There's no need to keep a copy of the scheduled scan IEs after the driver has been told, if it requires a copy it must make one. Therefore, we can move sched_scan_ies into the function. Signed-off-by: Johannes Berg

Merge remote-tracking branch 'mac80211/master' into mac80211-next

2012-09-06T13:56:02Z

Pull in mac80211.git to let the next patch apply without conflicts, also resolving a hwsim conflict. Conflicts: drivers/net/wireless/mac80211_hwsim.c Signed-off-by: Johannes Berg

mac80211: pass channel to ieee80211_send_probe_req

2012-08-20T12:13:45Z

In multi-channel scenarios, the channel that we will transmit a probe request on isn't always the current channel (which will be NULL anyway) but will instead be the channel that the AP is on. Pass the channel to the ieee80211_send_probe_req() function so it can be used in the different scenarios. The scan code continues to pass the current channel, of course. Signed-off-by: Johannes Berg

mac80211: check operating channel in scan

2012-08-20T12:13:43Z

The optimisation of scanning only on the current channel should check the operating channel. Also modify it to compare channel pointer rather than the frequency. Signed-off-by: Johannes Berg

mac80211: don't clear sched_scan_sdata on sched scan stop request

2012-07-30T07:14:36Z

ieee80211_request_sched_scan_stop() cleared local->sched_scan_sdata. However, sched_scan_sdata should be cleared only after the driver calls ieee80211_sched_scan_stopped() (like with normal hw scan). Clearing sched_scan_sdata too early caused ieee80211_sched_scan_stopped_work to exit prematurely without properly cleaning all the sched scan resources and without calling cfg80211_sched_scan_stopped (so userspace wasn't notified about sched scan completion). Signed-off-by: Eliad Peller Signed-off-by: Johannes Berg

Merge remote-tracking branch 'wireless/master' into mac80211

2012-07-30T07:13:03Z