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authorStanislaw Gruszka <stf_xl@wp.pl>2013-04-17 14:30:48 +0200
committerJohn W. Linville <linville@tuxdriver.com>2013-04-22 15:20:20 -0400
commit557985ae3442b43a776e58a494e1b6f549321ce2 (patch)
tree1da060b45d474b8606a6c318dcf063da9d135cf3 /drivers/net/wireless/rt2x00
parentf0bda571047746365569fccaede86adf6c0dfe8a (diff)
rt2800: nulify all last words of TXWI
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00')
-rw-r--r--drivers/net/wireless/rt2x00/rt2800lib.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 5c20e98b480..35f58bbf25c 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -542,6 +542,7 @@ void rt2800_write_tx_data(struct queue_entry *entry,
{
__le32 *txwi = rt2800_drv_get_txwi(entry);
u32 word;
+ int i;
/*
* Initialize TX Info descriptor
@@ -584,14 +585,16 @@ void rt2800_write_tx_data(struct queue_entry *entry,
rt2x00_desc_write(txwi, 1, word);
/*
- * Always write 0 to IV/EIV fields, hardware will insert the IV
- * from the IVEIV register when TXD_W3_WIV is set to 0.
+ * Always write 0 to IV/EIV fields (word 2 and 3), hardware will insert
+ * the IV from the IVEIV register when TXD_W3_WIV is set to 0.
* When TXD_W3_WIV is set to 1 it will use the IV data
* from the descriptor. The TXWI_W1_WIRELESS_CLI_ID indicates which
* crypto entry in the registers should be used to encrypt the frame.
+ *
+ * Nulify all remaining words as well, we don't know how to program them.
*/
- _rt2x00_desc_write(txwi, 2, 0 /* skbdesc->iv[0] */);
- _rt2x00_desc_write(txwi, 3, 0 /* skbdesc->iv[1] */);
+ for (i = 2; i < entry->queue->winfo_size / sizeof(__le32); i++)
+ _rt2x00_desc_write(txwi, i, 0);
}
EXPORT_SYMBOL_GPL(rt2800_write_tx_data);