ath9k: move the max rx buffer size check to ath9k_rx_accept()
While at it flip the order, seems easier to read and also
add some better description as to why we do this check.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 48ff772..16ed929 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -105,6 +105,13 @@
if (!rx_stats->rs_datalen)
return false;
+ /*
+ * rs_status follows rs_datalen so if rs_datalen is too large
+ * we can take a hint that hardware corrupted it, so ignore
+ * those frames.
+ */
+ if (rx_stats->rs_datalen > common->rx_bufsize)
+ return false;
if (rx_stats->rs_more) {
/*
@@ -801,10 +808,6 @@
if (flush)
goto requeue;
- /* The status portion of the descriptor could get corrupted. */
- if (common->rx_bufsize < rx_stats->rs_datalen)
- goto requeue;
-
if (!ath_rx_prepare(common, hw, skb, rx_stats,
rxs, &decrypt_error))
goto requeue;