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| author | Helmut Schaa <helmut.schaa@googlemail.com> | 2009-07-23 13:18:01 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-07-27 15:24:17 -0400 |
| commit | 142b9f5074dc0d09dc0025739ad437723d7bf527 (patch) | |
| tree | 07173ed0ffae8956c1f8938bc41695b1d19cebb0 /net/mac80211/tx.c | |
| parent | fbe9c429f195111bbf7f1630efa19aee295fd8e7 (diff) | |
| download | linux-stable-142b9f5074dc0d09dc0025739ad437723d7bf527.tar.gz linux-stable-142b9f5074dc0d09dc0025739ad437723d7bf527.tar.bz2 linux-stable-142b9f5074dc0d09dc0025739ad437723d7bf527.zip | |
mac80211: implement basic background scanning
Introduce a new scan flag "SCAN_OFF_CHANNEL" which basically tells us
that we are currently on a different channel for scanning and cannot
RX/TX. "SCAN_SW_SCANNING" tells us that we are currently running a
software scan but we might as well be on the operating channel to RX/TX.
While "SCAN_SW_SCANNING" is set during the whole scan "SCAN_OFF_CHANNEL"
is set when leaving the operating channel and unset when coming back.
Introduce two new scan states "SCAN_LEAVE_OPER_CHANNEL" and
"SCAN_ENTER_OPER_CHANNEL" which basically implement the functionality we
need to leave the operating channel (send a nullfunc to the AP and stop
the queues) and enter it again (send a nullfunc to the AP and start the
queues again).
Enhance the scan state "SCAN_DECISION" to switch back to the operating
channel after each scanned channel. In the future it sould be simple
to enhance the decision state to scan as much channels in a row as the
qos latency allows us.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/tx.c')
| -rw-r--r-- | net/mac80211/tx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index d7491dc2a65c..70ff4f065665 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -192,7 +192,7 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx) if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED)) return TX_CONTINUE; - if (unlikely(test_bit(SCAN_SW_SCANNING, &tx->local->scanning)) && + if (unlikely(test_bit(SCAN_OFF_CHANNEL, &tx->local->scanning)) && !ieee80211_is_probe_req(hdr->frame_control) && !ieee80211_is_nullfunc(hdr->frame_control)) /* |