diff options
| author | Helmut Schaa <helmut.schaa@googlemail.com> | 2011-07-26 12:18:27 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-08-08 22:04:08 +0200 |
| commit | 3ca97880ea7af47be479aadfe896cafc54939708 (patch) | |
| tree | 2d612c1961ca450dcfff5311df087797ec40724f /net/mac80211/agg-tx.c | |
| parent | b43legacy: remove 64-bit DMA support (diff) | |
| download | linux-3ca97880ea7af47be479aadfe896cafc54939708.tar.xz linux-3ca97880ea7af47be479aadfe896cafc54939708.zip | |
mac80211: Stop TX BA session if buf_size is zero
If we receive an ADDBA response with status code 0 and a buf_size of 0
we should stop the TX BA session as otherwise we'll end up queuing
frames in ieee80211_tx_prep_agg forever instead of sending them out as
non AMPDUs.
This fixes a problem with AVM Fritz Stick N wireless devices where
frames to this device are not transmitted anymore by mac80211.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/agg-tx.c')
| -rw-r--r-- | net/mac80211/agg-tx.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index c8be8eff70da..b7075f33dc06 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -777,18 +777,14 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "switched off addBA timer for tid %d\n", tid); #endif - + /* + * IEEE 802.11-2007 7.3.1.14: + * In an ADDBA Response frame, when the Status Code field + * is set to 0, the Buffer Size subfield is set to a value + * of at least 1. + */ if (le16_to_cpu(mgmt->u.action.u.addba_resp.status) - == WLAN_STATUS_SUCCESS) { - /* - * IEEE 802.11-2007 7.3.1.14: - * In an ADDBA Response frame, when the Status Code field - * is set to 0, the Buffer Size subfield is set to a value - * of at least 1. - */ - if (!buf_size) - goto out; - + == WLAN_STATUS_SUCCESS && buf_size) { if (test_and_set_bit(HT_AGG_STATE_RESPONSE_RECEIVED, &tid_tx->state)) { /* ignore duplicate response */ |