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authorHelmut Schaa <helmut.schaa@googlemail.com>2009-06-30 14:49:18 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-07-10 15:02:27 -0400
commit96f7e73938da744e718ce4817dd3e7e424624654 (patch)
tree81c4d2f3dfbef7e0fea45f211d50e998d61c418a /net/mac80211/scan.c
parent9d49e861a5e31fb7f575f348743886189045e102 (diff)
downloadop-kernel-dev-96f7e73938da744e718ce4817dd3e7e424624654.zip
op-kernel-dev-96f7e73938da744e718ce4817dd3e7e424624654.tar.gz
mac80211: shorten the passive dwell time for sw scans
mac80211's software scan implementation uses a passive dwell time of (HZ / 5) which means we stay 200ms on each passive channel. Compared to iwlwifi's hw scan and the old ipw* drivers which use values around 120ms this is quite long. Reducing the passive dwell time from 200ms to 125ms should save us something around a second on cards capable of 11a and we should still be able to catch beacons from most access points (assuming a ~100ms beacon interval). Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/scan.c')
-rw-r--r--net/mac80211/scan.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 8b2416c..569a464 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -26,7 +26,7 @@
#define IEEE80211_PROBE_DELAY (HZ / 33)
#define IEEE80211_CHANNEL_TIME (HZ / 33)
-#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5)
+#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 8)
struct ieee80211_bss *
ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
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