From: Johannes Berg <johannes.berg@xxxxxxxxx>
There are situations where we don't have the
necessary rate control information yet for
station entries, e.g. when associating. This
currently doesn't really happen due to the
dummy station handling; explicitly disabling
rate control when it's not initialised will
allow us to remove dummy stations.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/mac80211/debugfs_sta.c | 4 ++--
net/mac80211/rate.c | 2 +-
net/mac80211/rate.h | 1 +
net/mac80211/sta_info.h | 2 ++
4 files changed, 6 insertions(+), 3 deletions(-)
--- a/net/mac80211/debugfs_sta.c 2012-01-05 09:16:57.000000000 +0100
+++ b/net/mac80211/debugfs_sta.c 2012-01-05 11:21:10.000000000 +0100
@@ -63,7 +63,7 @@ static ssize_t sta_flags_read(struct fil
test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""
int res = scnprintf(buf, sizeof(buf),
- "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
+ "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
TEST(PS_DRIVER), TEST(AUTHORIZED),
TEST(SHORT_PREAMBLE),
@@ -71,7 +71,7 @@ static ssize_t sta_flags_read(struct fil
TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
TEST(TDLS_PEER_AUTH), TEST(4ADDR_EVENT),
- TEST(INSERTED));
+ TEST(INSERTED), TEST(RATE_CONTROL));
#undef TEST
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
--- a/net/mac80211/rate.c 2011-12-10 17:32:28.000000000 +0100
+++ b/net/mac80211/rate.c 2012-01-05 11:22:11.000000000 +0100
@@ -336,7 +336,7 @@ void rate_control_get_rate(struct ieee80
int i;
u32 mask;
- if (sta) {
+ if (sta && test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) {
ista = &sta->sta;
priv_sta = sta->rate_ctrl_priv;
}
--- a/net/mac80211/rate.h 2011-11-03 13:48:28.000000000 +0100
+++ b/net/mac80211/rate.h 2012-01-05 11:22:05.000000000 +0100
@@ -62,6 +62,7 @@ static inline void rate_control_rate_ini
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
+ set_sta_flag(sta, WLAN_STA_RATE_CONTROL);
}
static inline void rate_control_rate_update(struct ieee80211_local *local,
--- a/net/mac80211/sta_info.h 2012-01-05 11:20:04.000000000 +0100
+++ b/net/mac80211/sta_info.h 2012-01-05 11:20:53.000000000 +0100
@@ -53,6 +53,7 @@
* reply to other uAPSD trigger frames or PS-Poll.
* @WLAN_STA_4ADDR_EVENT: 4-addr event was already sent for this frame.
* @WLAN_STA_INSERTED: This station is inserted into the hash table.
+ * @WLAN_STA_RATE_CONTROL: rate control was initialized for this station.
*/
enum ieee80211_sta_info_flags {
WLAN_STA_AUTH,
@@ -73,6 +74,7 @@ enum ieee80211_sta_info_flags {
WLAN_STA_SP,
WLAN_STA_4ADDR_EVENT,
WLAN_STA_INSERTED,
+ WLAN_STA_RATE_CONTROL,
};
#define STA_TID_NUM 16
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
