Thread (67 messages) 67 messages, 7 authors, 2018-09-05
STALE2835d

[PATCH 27/28] mac80211: Always report TX status

From: Luca Coelho <hidden>
Date: 2018-08-31 13:05:42
Subsystem: mac80211, the rest · Maintainers: Johannes Berg, Linus Torvalds

)

From: Andrei Otcheretianski <redacted>

If a frame is dropped for any reason, mac80211 wouldn't report the TX
status back to user space.

As the user space may rely on the TX_STATUS to kick its state
machines, resends etc, it's better to just report this frame as not
acked instead.

Signed-off-by: Andrei Otcheretianski <redacted>
Signed-off-by: Luca Coelho <redacted>
---
 net/mac80211/status.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 9a6d7208bf4f..001a869c059c 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -479,11 +479,6 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local,
 	if (!skb)
 		return;
 
-	if (dropped) {
-		dev_kfree_skb_any(skb);
-		return;
-	}
-
 	if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) {
 		u64 cookie = IEEE80211_SKB_CB(skb)->ack.cookie;
 		struct ieee80211_sub_if_data *sdata;
@@ -506,6 +501,8 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local,
 		}
 		rcu_read_unlock();
 
+		dev_kfree_skb_any(skb);
+	} else if (dropped) {
 		dev_kfree_skb_any(skb);
 	} else {
 		/* consumes skb */
-- 
2.18.0
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help