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mac80211: simplify scan state machine

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Attempting to micro-optimise the scan by going
fully live again when scanning the operating
channel just made the code extremely complex
and has little gain in most use cases. Remove
all that code and simplify the state machine
again.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2011-11-08 16:21:21 +01:00
committed by John W. Linville
parent 86a2ea4134
commit 07ef03ee8b
2 changed files with 83 additions and 129 deletions
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11
net/mac80211/ieee80211_i.h
View File

@ -728,17 +728,16 @@ enum {
* operating channel
* @SCAN_SET_CHANNEL: Set the next channel to be scanned
* @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
* @SCAN_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP
* about us leaving the channel and stop all associated STA interfaces
* @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the
* AP about us being back and restart all associated STA interfaces
* @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
* send out data
* @SCAN_RESUME: Resume the scan and scan the next channel
*/
enum mac80211_scan_state {
SCAN_DECISION,
SCAN_SET_CHANNEL,
SCAN_SEND_PROBE,
SCAN_LEAVE_OPER_CHANNEL,
SCAN_ENTER_OPER_CHANNEL,
SCAN_SUSPEND,
SCAN_RESUME,
};
struct ieee80211_local {