mac80211: don't reorder frames with SN smaller than SSN
commit b7540d8f25c8034de7e4163fc23ac457bf057731 upstream.
When RX aggregation starts, transmitter may continue send frames
with SN smaller than SSN until the AddBA response is received.
However, the reorder buffer is already initialized at this point,
which will cause the drop of such frames as duplicates since the
head SN of the reorder buffer is set to the SSN, which is bigger.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index dd06ef0..15599c7 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -189,6 +189,7 @@
* @auto_seq: used for offloaded BA sessions to automatically pick head_seq_and
* and ssn.
* @removed: this session is removed (but might have been found due to RCU)
+ * @started: this session has started (head ssn or higher was received)
*
* This structure's lifetime is managed by RCU, assignments to
* the array holding it must hold the aggregation mutex.
@@ -212,8 +213,9 @@
u16 ssn;
u16 buf_size;
u16 timeout;
- bool auto_seq;
- bool removed;
+ u8 auto_seq:1,
+ removed:1,
+ started:1;
};
/**