diff options
| author | Stone Piao <piaoyun@marvell.com> | 2012-06-20 20:21:10 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-06-22 13:59:49 -0400 |
| commit | 925839243dc9aa4ef25305f5afd10ed18258a4ac (patch) | |
| tree | 75c6750c9a7917b42f9d20a56a628b20087e25b9 /drivers/net/wireless/mwifiex/11n_rxreorder.h | |
| parent | 8d6fcbdb4e039544e3f60a909a0cd819f3f68ad9 (diff) | |
mwifiex: fix 11n rx packet drop issue
Currently we check the sequence number of last packet received
against start_win. If a sequence hole is detected, start_win is
updated to next sequence number.
Since the rx sequence number is initialized to 0, a corner case
exists when BA setup happens immediately after association. As
0 is a valid sequence number, start_win gets increased to 1
incorrectly. This causes the first packet with sequence number 0
being dropped.
Initialize rx sequence number as 0xffff and skip adjusting
start_win if the sequence number remains 0xffff. The sequence
number will be updated once the first packet is received.
Cc: "3.0.y, 3.1.y, 3.2.y, 3.3.y, 3.4.y" <stable@vger.kernel.org>
Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mwifiex/11n_rxreorder.h')
| -rw-r--r-- | drivers/net/wireless/mwifiex/11n_rxreorder.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/11n_rxreorder.h b/drivers/net/wireless/mwifiex/11n_rxreorder.h index f1bffebabc60..6c9815a0f5d8 100644 --- a/drivers/net/wireless/mwifiex/11n_rxreorder.h +++ b/drivers/net/wireless/mwifiex/11n_rxreorder.h @@ -37,6 +37,13 @@ #define ADDBA_RSP_STATUS_ACCEPT 0 +#define MWIFIEX_DEF_11N_RX_SEQ_NUM 0xffff + +static inline void mwifiex_reset_11n_rx_seq_num(struct mwifiex_private *priv) +{ + memset(priv->rx_seq, 0xff, sizeof(priv->rx_seq)); +} + int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *, u16 seqNum, u16 tid, u8 *ta, |