diff options
| author | Arik Nemtsov <arik@wizery.com> | 2011-02-22 23:22:25 +0100 |
|---|---|---|
| committer | Luciano Coelho <coelho@ti.com> | 2011-02-23 10:14:55 +0100 |
| commit | 99a2775d02a7accf4cc661a65c76fd7b379d1c7a (patch) | |
| tree | fb2031356dca5064540e467293e6dc6aa9d803bb /drivers/net/wireless/wl12xx/tx.c | |
| parent | wl12xx: fix potential race condition with TX queue watermark (diff) | |
| download | linux-99a2775d02a7accf4cc661a65c76fd7b379d1c7a.tar.xz linux-99a2775d02a7accf4cc661a65c76fd7b379d1c7a.zip | |
wl12xx: AP-mode - fix race condition on sta connection
If a sta starts transmitting immediately after authentication, sometimes
the FW deauthenticates it. Fix this by marking the sta "in-connection"
in FW before sending the autentication response.
The "in-connection" entry is automatically removed when connection
succeeds or after a timeout.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx/tx.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/tx.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/wireless/wl12xx/tx.c b/drivers/net/wireless/wl12xx/tx.c index 94ff3faf7dde..0bb57daac889 100644 --- a/drivers/net/wireless/wl12xx/tx.c +++ b/drivers/net/wireless/wl12xx/tx.c @@ -70,6 +70,22 @@ static void wl1271_free_tx_id(struct wl1271 *wl, int id) } } +static void wl1271_tx_ap_update_inconnection_sta(struct wl1271 *wl, + struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr; + + /* + * add the station to the known list before transmitting the + * authentication response. this way it won't get de-authed by FW + * when transmitting too soon. + */ + hdr = (struct ieee80211_hdr *)(skb->data + + sizeof(struct wl1271_tx_hw_descr)); + if (ieee80211_is_auth(hdr->frame_control)) + wl1271_acx_set_inconnection_sta(wl, hdr->addr1); +} + static int wl1271_tx_allocate(struct wl1271 *wl, struct sk_buff *skb, u32 extra, u32 buf_offset) { @@ -238,6 +254,9 @@ static int wl1271_prepare_tx_frame(struct wl1271 *wl, struct sk_buff *skb, if (ret < 0) return ret; + if (wl->bss_type == BSS_TYPE_AP_BSS) + wl1271_tx_ap_update_inconnection_sta(wl, skb); + wl1271_tx_fill_hdr(wl, skb, extra, info); /* |