[PATCH 283/379][SRU][OEM-5.6] mac80211: Fix bug in Tx ack status reporting in 802.3 xmit path

[You-Sheng Yang]

From: Vasanthakumar Thiagarajan <vthiagar at codeaurora.org>

BugLink: https://bugs.launchpad.net/bugs/1879633

Allocated ack_frame id from local->ack_status_frames is not really
stored in the tx_info for 802.3 Tx path. Due to this, tx ack status
is not reported and ack_frame id is not freed for the buffers requiring
tx ack status. Also move the memset to 0 of tx_info before
IEEE80211_TX_CTL_REQ_TX_STATUS flag assignment.

Fixes: 50ff477a8639 ("mac80211: add 802.11 encapsulation offloading support")
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar at codeaurora.org>
Link: https://lore.kernel.org/r/1595427617-1713-1-git-send-email-vthiagar@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg at intel.com>
(cherry picked from commit e61fbfca8055eef18f11727f431e1e3e5221291e)
Signed-off-by: You-Sheng Yang <vicamo.yang at canonical.com>
---
 net/mac80211/tx.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 8e9c6b3c8395..9dc725d56609 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -4227,11 +4227,12 @@ static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata,
 	    test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state))
 		goto out_free;
 
+	memset(info, 0, sizeof(*info));
+
 	if (unlikely(!multicast && skb->sk &&
 		     skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS))
-		ieee80211_store_ack_skb(local, skb, &info->flags, NULL);
-
-	memset(info, 0, sizeof(*info));
+		info->ack_frame_id = ieee80211_store_ack_skb(local, skb,
+							     &info->flags, NULL);
 
 	if (unlikely(sdata->control_port_protocol == ehdr->h_proto)) {
 		if (sdata->control_port_no_encrypt)
-- 
2.29.2