The background scan completion takes more time when the station is
having heavy uplink traffic. The scan state machine decides to fall
back to home channel on every off-channel visit when there are pending
frames in tx queue. bgscan completion took ~30sec on dual band US
regulatory card.
scan period = (20 active channels * probe timeout) +
(12 passive channels * passive probe timeout) +
(32 * timeout on home channel) +
(32 * flush timeout)
Signed-off-by: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxxxx>
---
net/wireless/scan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index fdbcfe6..1442bb6 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -18,7 +18,7 @@
#include "nl80211.h"
#include "wext-compat.h"
-#define IEEE80211_SCAN_RESULT_EXPIRE (15 * HZ)
+#define IEEE80211_SCAN_RESULT_EXPIRE (30 * HZ)
void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak)
{
--
1.7.10
--
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