[PATCH 5.7 054/166] mac80211: Fix dropping broadcast packets in 802.11 encap

From: Greg Kroah-Hartman
Date: Tue Jul 14 2020 - 15:04:57 EST


From: Seevalamuthu Mariappan <seevalam@xxxxxxxxxxxxxx>

[ Upstream commit 78fb5b541b7ae57ac39187ccb3097e606004cf9b ]

Broadcast pkts like arp are getting dropped in 'ieee80211_8023_xmit'.
Fix this by replacing is_valid_ether_addr api with is_zero_ether_addr.

Fixes: 50ff477a8639 ("mac80211: add 802.11 encapsulation offloading support")
Signed-off-by: Seevalamuthu Mariappan <seevalam@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1591697754-4975-1-git-send-email-seevalam@xxxxxxxxxxxxxx
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/mac80211/tx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 82846aca86d96..6ab33d9904eec 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -4192,7 +4192,7 @@ static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata,
(!sta || !test_sta_flag(sta, WLAN_STA_TDLS_PEER)))
ra = sdata->u.mgd.bssid;

- if (!is_valid_ether_addr(ra))
+ if (is_zero_ether_addr(ra))
goto out_free;

multicast = is_multicast_ether_addr(ra);
--
2.25.1