mac80211: rename bss_conf timestamp to last_tsf
This value is not really very useful by itself,
yet some drivers (including iwlwifi until I can
figure out what it should do) use it. At least
rename it to "last_tsf" to indicate the meaning
and add a note that it may be really old.
I suspect the value may become useful combined
with the rx_status->mactime, but we don't (yet)
store that value and pass it to the driver.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index b42052b..e5ac047 100644
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -5355,7 +5355,7 @@
if (changes & BSS_CHANGED_ASSOC) {
D_MAC80211("ASSOC %d\n", bss_conf->assoc);
if (bss_conf->assoc) {
- il->timestamp = bss_conf->timestamp;
+ il->timestamp = bss_conf->last_tsf;
if (!il_is_rfkill(il))
il->ops->post_associate(il);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
index 3690907..2e1a317 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
@@ -822,7 +822,7 @@
if (changes & BSS_CHANGED_ASSOC) {
if (bss_conf->assoc) {
- priv->timestamp = bss_conf->timestamp;
+ priv->timestamp = bss_conf->last_tsf;
ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
} else {
/*
diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index d7c0f86..293676b 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -102,7 +102,7 @@
/* Update the AID, this is needed for dynamic PS support */
rt2x00dev->aid = bss_conf->assoc ? bss_conf->aid : 0;
- rt2x00dev->last_beacon = bss_conf->timestamp;
+ rt2x00dev->last_beacon = bss_conf->last_tsf;
/* Update global beacon interval time, this is needed for PS support */
rt2x00dev->beacon_int = bss_conf->beacon_int;
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 44e4dfc..9a012be6 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -229,7 +229,8 @@
* valid in station mode only while @assoc is true and if also
* requested by %IEEE80211_HW_NEED_DTIM_PERIOD (cf. also hw conf
* @ps_dtim_period)
- * @timestamp: beacon timestamp
+ * @last_tsf: last beacon's/probe response's TSF timestamp (could be old
+ * as it may have been received during scanning long ago)
* @beacon_int: beacon interval
* @assoc_capability: capabilities taken from assoc resp
* @basic_rates: bitmap of basic rates, each bit stands for an
@@ -276,7 +277,7 @@
u8 dtim_period;
u16 beacon_int;
u16 assoc_capability;
- u64 timestamp;
+ u64 last_tsf;
u32 basic_rates;
int mcast_rate[IEEE80211_NUM_BANDS];
u16 ht_operation_mode;
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index 7034209..21d6f52 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -296,7 +296,7 @@
__entry->dtimper = info->dtim_period;
__entry->bcnint = info->beacon_int;
__entry->assoc_cap = info->assoc_capability;
- __entry->timestamp = info->timestamp;
+ __entry->timestamp = info->last_tsf;
__entry->basic_rates = info->basic_rates;
__entry->enable_beacon = info->enable_beacon;
__entry->ht_operation_mode = info->ht_operation_mode;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 39c1393..90d1db3 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1318,7 +1318,7 @@
bss_info_changed |= BSS_CHANGED_ASSOC;
/* set timing information */
bss_conf->beacon_int = cbss->beacon_interval;
- bss_conf->timestamp = cbss->tsf;
+ bss_conf->last_tsf = cbss->tsf;
bss_info_changed |= BSS_CHANGED_BEACON_INT;
bss_info_changed |= ieee80211_handle_bss_capability(sdata,