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Subject: Re: [PATCH 6.1 1/2] wifi: mt76: fix receiving LLC packets on
 mt7615/mt7915
From:   Kalle Valo <kvalo@kernel.org>
In-Reply-To: <20221005130824.23371-1-nbd@nbd.name>
References: <20221005130824.23371-1-nbd@nbd.name>
To:     Felix Fietkau <nbd@nbd.name>
Cc:     linux-wireless@vger.kernel.org,
        Chad Monroe <chad.monroe@smartrg.com>
User-Agent: pwcli/0.1.1-git (https://github.com/kvalo/pwcli/) Python/3.7.3
Message-ID: <166547771808.14345.12170744535376568553.kvalo@kernel.org>
Date:   Tue, 11 Oct 2022 08:42:02 +0000 (UTC)
Precedence: bulk

Felix Fietkau <nbd@nbd.name> wrote:

> When 802.3 decap offload is enabled, the hardware indicates header translation
> failure, whenever either the LLC-SNAP header was not found, or a VLAN header
> with an unregcognized tag is present.
> In that case, the hardware inserts a 2-byte length fields after the MAC
> addresses. For VLAN packets, this tag needs to be removed. However,
> for 802.3 LLC packets, the length bytes should be preserved, since there
> is no separate ethertype field in the data.
> This fixes an issue where the length field was omitted for LLC frames, causing
> them to be malformed after hardware decap.
> 
> Fixes: 1eeff0b4c1a6 ("mt76: mt7915: fix decap offload corner case with 4-addr VLAN frames")
> Reported-by: Chad Monroe <chad.monroe@smartrg.com>
> Signed-off-by: Felix Fietkau <nbd@nbd.name>

2 patches applied to wireless.git, thanks.

47c44088ac08 wifi: mt76: fix receiving LLC packets on mt7615/mt7915
443dc85ad13e wifi: mt76: fix rx checksum offload on mt7615/mt7915/mt7921

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20221005130824.23371-1-nbd@nbd.name/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches