diff options
| author | Vipin Mehta <vmehta@atheros.com> | 2011-02-18 13:13:16 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-18 13:28:53 -0800 |
| commit | d0e0086893de668db30f31b8ba407199a0f693d0 (patch) | |
| tree | 31bb24eb6995e7a30a5dfb54c81f34b0a736fee1 /drivers/staging | |
| parent | 28f7e85a4b454e4882a91ea13dd17cdf5013168d (diff) | |
staging: ath6kl: Fixing disappearing of scan list due to jiffies wrap over
When jiffies wrap-over, all the BSS in the cache is removed. Wrap-over of
jiffies is not handled in the correct way. This cause the scan list to go
empty during this time for a small duration
Signed-off-by: Vipin Mehta <vmehta@atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/ath6kl/os/linux/include/osapi_linux.h | 2 | ||||
| -rw-r--r-- | drivers/staging/ath6kl/wlan/src/wlan_node.c | 7 |
2 files changed, 5 insertions, 4 deletions
diff --git a/drivers/staging/ath6kl/os/linux/include/osapi_linux.h b/drivers/staging/ath6kl/os/linux/include/osapi_linux.h index eb09d43f44e..1957de07b71 100644 --- a/drivers/staging/ath6kl/os/linux/include/osapi_linux.h +++ b/drivers/staging/ath6kl/os/linux/include/osapi_linux.h @@ -121,7 +121,7 @@ typedef spinlock_t A_MUTEX_T; /* Get current time in ms adding a constant offset (in ms) */ #define A_GET_MS(offset) \ - (jiffies + ((offset) / 1000) * HZ) + (((jiffies / HZ) * 1000) + (offset)) /* * Timer Functions diff --git a/drivers/staging/ath6kl/wlan/src/wlan_node.c b/drivers/staging/ath6kl/wlan/src/wlan_node.c index 996b36d01cc..d61cb6ea894 100644 --- a/drivers/staging/ath6kl/wlan/src/wlan_node.c +++ b/drivers/staging/ath6kl/wlan/src/wlan_node.c @@ -122,7 +122,7 @@ wlan_setup_node(struct ieee80211_node_table *nt, bss_t *ni, timeoutValue = nt->nt_nodeAge; - ni->ni_tstamp = A_GET_MS (timeoutValue); + ni->ni_tstamp = A_GET_MS (0); ni->ni_actcnt = WLAN_NODE_INACT_CNT; IEEE80211_NODE_LOCK_BH(nt); @@ -360,7 +360,7 @@ wlan_refresh_inactive_nodes (struct ieee80211_node_table *nt) if (A_MEMCMP(myBssid, bss->ni_macaddr, sizeof(myBssid)) != 0) { - if (bss->ni_tstamp <= now || --bss->ni_actcnt == 0) + if (((now - bss->ni_tstamp) > timeoutValue) || --bss->ni_actcnt == 0) { /* * free up all but the current bss - if set @@ -381,6 +381,7 @@ wlan_node_timeout (A_ATH_TIMER arg) bss_t *bss, *nextBss; u8 myBssid[IEEE80211_ADDR_LEN], reArmTimer = false; u32 timeoutValue = 0; + u32 now = A_GET_MS(0); timeoutValue = nt->nt_nodeAge; @@ -393,7 +394,7 @@ wlan_node_timeout (A_ATH_TIMER arg) if (A_MEMCMP(myBssid, bss->ni_macaddr, sizeof(myBssid)) != 0) { - if (bss->ni_tstamp <= A_GET_MS(0)) + if ((now - bss->ni_tstamp) > timeoutValue) { /* * free up all but the current bss - if set |