ath9k: Fix bug in the way "bf_tx_aborted" of struct ath_buf is used
This bug was introduced by the following commit
Author: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Date: Thu Apr 15 17:38:46 2010 -0400
ath9k: Remove ATH9K_TX_SW_ABORTED and introduce a bool for this purpose
Wrong buffer is checked for bf_tx_aborted field in ath_tx_num_badfrms(),
this may result in a rate scaling with wrong feedback (number
of unacked frames in this case). It is the last one in the chain
of buffers for an aggregate frame that should be checked.
Also it misses the initialization of this field in the buffer,
this may lead to a situation where we stop the sw retransmission
of failed subframes associated to this buffer.
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 09cb13c..859aa4a 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1728,6 +1728,8 @@
} else
bf->bf_isnullfunc = false;
+ bf->bf_tx_aborted = false;
+
return 0;
}
@@ -1989,7 +1991,7 @@
int nbad = 0;
int isaggr = 0;
- if (bf->bf_tx_aborted)
+ if (bf->bf_lastbf->bf_tx_aborted)
return 0;
isaggr = bf_isaggr(bf);