[PATCH] mac80211: account TX MSDUs properly with segmentation offload

[PATCH] mac80211: account TX MSDUs properly with segmentation offload

[Johannes Berg]

From: Johannes Berg <johannes.berg@intel.com>

If an SKB will be segmented by the driver, count it for multiple
MSDUs that are being transmitted rather than just a single.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/tx.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 9489b5da5a46..53d462c84977 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2810,7 +2810,11 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
 	u64_stats_update_begin(&sta->tx_sync);
 	sta->tx_bytes[skb_get_queue_mapping(skb)] += skb->len;
 	sta->tx_packets[skb_get_queue_mapping(skb)]++;
-	sta->tx_msdu[tid]++;
+	if (skb_shinfo(skb)->gso_size)
+		sta->tx_msdu[tid] +=
+			DIV_ROUND_UP(skb->len, skb_shinfo(skb)->gso_size);
+	else
+		sta->tx_msdu[tid]++;
 	u64_stats_update_end(&sta->tx_sync);
 
 	if (fast_tx->pn_offs) {
-- 
2.1.4