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authorJohannes Berg <johannes.berg@intel.com>2012-03-28 10:58:36 +0200
committerJohn W. Linville <linville@tuxdriver.com>2012-04-10 14:54:07 -0400
commit24398e39c8ee4a9d9123eed322b859ece4d16cac (patch)
tree28e054cd2feaf289bc4fbe279936d2d21ceaba5e /Documentation
parent1d98fb122d8f0c33504576da4107bc807176be1d (diff)
downloadlinux-24398e39c8ee4a9d9123eed322b859ece4d16cac.tar.gz
mac80211: set HT channel before association
Changing the channel type during operation is confusing to some drivers and will be hard to handle in multi-channel scenarios. Instead of changing the channel, set it to the right HT channel before authenticating/associating and don't change it -- just update the 20/40 MHz restrictions in rate control as needed when changed by the AP. This also fixes a problem that Paul missed in his fix for the "regulatory makes us deaf" issue -- when we couldn't use 40 MHz we still associated saying we were using 40 MHz, which could in similarly broken APs make us never even connect successfully. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/networking/mac80211-auth-assoc-deauth.txt10
1 files changed, 3 insertions, 7 deletions
diff --git a/Documentation/networking/mac80211-auth-assoc-deauth.txt b/Documentation/networking/mac80211-auth-assoc-deauth.txt
index e0a2aa585ca..d7a15fe91bf 100644
--- a/Documentation/networking/mac80211-auth-assoc-deauth.txt
+++ b/Documentation/networking/mac80211-auth-assoc-deauth.txt
@@ -23,7 +23,7 @@ BA session stop & deauth/disassoc frames
end note
end
-mac80211->driver: config(channel, non-HT)
+mac80211->driver: config(channel, channel type)
mac80211->driver: bss_info_changed(set BSSID, basic rate bitmap)
mac80211->driver: sta_state(AP, exists)
@@ -51,7 +51,7 @@ note over mac80211,driver: cleanup like for authenticate
end
alt not previously authenticated (FT)
-mac80211->driver: config(channel, non-HT)
+mac80211->driver: config(channel, channel type)
mac80211->driver: bss_info_changed(set BSSID, basic rate bitmap)
mac80211->driver: sta_state(AP, exists)
mac80211->driver: sta_state(AP, authenticated)
@@ -67,10 +67,6 @@ end
mac80211->driver: set up QoS parameters
-alt is HT channel
-mac80211->driver: config(channel, HT params)
-end
-
mac80211->driver: bss_info_changed(QoS, HT, associated with AID)
mac80211->userspace: associated
@@ -95,5 +91,5 @@ mac80211->driver: sta_state(AP,exists)
mac80211->driver: sta_state(AP,not-exists)
mac80211->driver: turn off powersave
mac80211->driver: bss_info_changed(clear BSSID, not associated, no QoS, ...)
-mac80211->driver: config(non-HT channel type)
+mac80211->driver: config(channel type to non-HT)
mac80211->userspace: disconnected