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mac80211: support secondary channel offset in CSA

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Add support for the secondary channel offset IE in channel
switch announcements. This is necessary for proper handling
of CSA on HT access points.

For this to work it is also necessary to convert everything
here to use chandef structs instead of just channels. The
driver updates aren't really correct though. In particular,
the TI wl18xx driver update can't possibly be right since
it just ignores the new channel width for lack of firmware
API.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2013-03-25 18:29:27 +01:00
parent b4f286a1c0
commit 85220d71bf
13 changed files with 125 additions and 54 deletions
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include/net/mac80211.h
+2 -2
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@@ -1017,13 +1017,13 @@ struct ieee80211_conf {
* the driver passed into mac80211.
* @block_tx: Indicates whether transmission must be blocked before the
* scheduled channel switch, as indicated by the AP.
* @channel: the new channel to switch to
* @chandef: the new channel to switch to
* @count: the number of TBTT's until the channel switch event
*/
struct ieee80211_channel_switch {
u64 timestamp;
bool block_tx;
struct ieee80211_channel *channel;
struct cfg80211_chan_def chandef;
u8 count;
};