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From:   Ryder Lee <ryder.lee@mediatek.com>
To:     Felix Fietkau <nbd@nbd.name>
CC:     Lorenzo Bianconi <lorenzo.bianconi@redhat.com>,
        Shayne Chen <shayne.chen@mediatek.com>,
        Evelyn Tsai <evelyn.tsai@mediatek.com>,
        <linux-wireless@vger.kernel.org>,
        <linux-mediatek@lists.infradead.org>,
        Ryder Lee <ryder.lee@mediatek.com>
Subject: [PATCH v2 1/3] mac80211: check per vif offload_flags in Tx path
Date:   Fri, 18 Jun 2021 04:38:59 +0800
Message-ID: <177785418cf407808bf3a44760302d0647076990.1623961575.git.ryder.lee@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

offload_flags has been introduced to indicate encap status of each interface.
An interface can encap offload at runtime, or if it has some extra limitations
it can simply override the flags, so it's more flexible to check offload_flags
in Tx path.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
---
v2: drop a TX_FRAG_LIST condition
---
 net/mac80211/tx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 0a4bc9e08637..db0d26d19f91 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3267,6 +3267,9 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
 	if (!ieee80211_hw_check(&local->hw, TX_AMSDU))
 		return false;
 
+	if (sdata->vif.offload_flags & IEEE80211_OFFLOAD_ENCAP_ENABLED)
+		return false;
+
 	if (skb_is_gso(skb))
 		return false;
 
-- 
2.18.0