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mac80211: change number of pre-assoc scans

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This patch fixes noticed problem in noisy environments of 50+ APs
that scan fails to find the requested AP on first try, which
leads to connection refusal. second scan has empirically proven to fix
this problem in almost all cases.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Esti Kummer <ester.kummer@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ron Rindjunsky
2008-08-08 01:50:46 +03:00
committed by John W. Linville
parent 008c44825d
commit 6042a3e3ff
2 changed files with 10 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
net/mac80211/mlme.c
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@@ -34,6 +34,7 @@
#include "led.h"
#include "mesh.h"
#define IEEE80211_ASSOC_SCANS_MAX_TRIES 2
#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
#define IEEE80211_AUTH_MAX_TRIES 3
#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
@@ -596,6 +597,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
{
if (deauth)
ifsta->auth_tries = 0;
ifsta->assoc_scan_tries = 0;
ifsta->assoc_tries = 0;
ieee80211_set_associated(sdata, ifsta, 0);
}
@@ -3405,7 +3407,9 @@ static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata,
ifsta->auth_alg = WLAN_AUTH_OPEN;
ifsta->auth_transaction = -1;
ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
ifsta->auth_tries = ifsta->assoc_tries = 0;
ifsta->assoc_scan_tries = 0;
ifsta->auth_tries = 0;
ifsta->assoc_tries = 0;
netif_carrier_off(sdata->dev);
}
@@ -3510,7 +3514,8 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
ieee80211_sta_reset_auth(sdata, ifsta);
return 0;
} else {
if (ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE) {
if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
ifsta->assoc_scan_tries++;
if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
ieee80211_sta_start_scan(sdata, NULL, 0);
else