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

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Date:   Tue, 14 Jul 2020 20:43:39 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Seevalamuthu Mariappan <seevalam@...eaurora.org>,
        Johannes Berg <johannes.berg@...el.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.7 054/166] mac80211: Fix dropping broadcast packets in 802.11 encap

From: Seevalamuthu Mariappan <seevalam@...eaurora.org>

[ 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@...eaurora.org>
Link: https://lore.kernel.org/r/1591697754-4975-1-git-send-email-seevalam@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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