From nobody Fri Sep 4 05:20:17 2026 Received: from mxct.zte.com.cn (mxct.zte.com.cn [183.62.165.209]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8362A2D46A1; Fri, 4 Sep 2026 00:45:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=183.62.165.209 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788482743; cv=none; b=h7jAlnpymhrAhSmZ5BUfwtGSDGfPFiTQi80OT++RuceeuTrkbJNflFdViZewTJ7qop4NmtK6SAGkGLTTual+rc0BRsvTBQLtCHKYv1QUC6Iwkf0UoU5ti4YcR17YwoWUVNMg/Liy4JEmoIbuMzD1BsHNXeAYoQAbGu97t+TE7no= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788482743; c=relaxed/simple; bh=0v0U5rlb46QD45G3LjSYu5WQAHvpNSoGbtWGcmZK4sE=; h=Message-ID:Date:Mime-Version:From:To:Cc:Subject:Content-Type; b=RHPtyj5WQUNjAFAnGSokO2zOTZkfMmV8Fmv6HwMZdDZUyeHjBM7vjj4H0BQU+H12FfU+FC3KmvcU2t1tyjKNCUjV41AU8RiXFx5UDkvl35yp8StrFTgJ2GxNHOtpHVBcqbDBWzpq2GdrA8yrHVhwDYiFy4EbCM8yA63rjjVGvxs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zte.com.cn; spf=pass smtp.mailfrom=zte.com.cn; arc=none smtp.client-ip=183.62.165.209 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zte.com.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zte.com.cn Received: from mse-fl1.zte.com.cn (unknown [10.5.228.132]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mxct.zte.com.cn (FangMail) with ESMTPS id 4hbd6f70C0z55y2L; Fri, 04 Sep 2026 08:45:30 +0800 (CST) Received: from xaxapp05.zte.com.cn ([10.99.98.109]) by mse-fl1.zte.com.cn with SMTP id 6840jUc1087556; Fri, 4 Sep 2026 08:45:30 +0800 (+08) (envelope-from he.peilin@zte.com.cn) Received: from mapi (xaxapp04[null]) by mapi (Zmail) with MAPI id mid31; Fri, 4 Sep 2026 08:45:30 +0800 (CST) X-Zmail-TransId: 2afb6a9a14aa0aa-a417d X-Mailer: Zmail v1.0 Message-ID: <202609040845307827XHaxAT2PmgJc9jjPqfAP@zte.com.cn> Date: Fri, 4 Sep 2026 08:45:30 +0800 (CST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 From: To: , , , , , , , , , , , , Cc: , Subject: =?UTF-8?B?W1BBVENIIG5ldCB2NV0gbmV0OiBzdG1tYWM6IHJlbW92ZSBzb2Z0d2FyZSBWTEFOIHRhZyBzdHJpcHBpbmc=?= X-MAIL: mse-fl1.zte.com.cn 6840jUc1087556 X-TLS: YES X-ENVELOPE-SENDER: he.peilin@zte.com.cn X-SOURCE-IP: 10.5.228.132 unknown Fri, 04 Sep 2026 08:45:30 +0800 X-CLEAN: YES X-Fangmail-Anti-Spam-Filtered: true X-Fangmail-MID-QID: 6A9A14AA.002/4hbd6f70C0z55y2L Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The software VLAN stripping logic in stmmac_rx_vlan() was originally introduced in 2014 by commit b93819854d6e ("stmmac: Add vlan rx for better GRO performance.") as a workaround to improve GRO performance, since at that time GRO could not handle frames with VLAN tags. However, this limitation was resolved in 2015 by commit 66e5133f19e9 ("vlan: Add GRO support for non hardware accelerated vlan"), which added GRO support for non-hardware-accelerated VLAN frames. Keeping a software fallback path for VLAN stripping is no longer necessary and only adds complexity. Fixes: b93819854d6e ("stmmac: Add vlan rx for better GRO performance.") Signed-off-by: Peilin He Reviewed-by: xu xin Reviewed-by: Jiang Kun --- ../net/ethernet/stmicro/stmmac/stmmac_main.c | 28 ++----------------- 1 file changed, 2 insertions(+), 26 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/ne= t/ethernet/stmicro/stmmac/stmmac_main.c index b2b7d0242dd3..2e3b0cf10d66 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -5021,24 +5021,6 @@ static netdev_features_t stmmac_features_check(struc= t sk_buff *skb, return vlan_features_check(skb, features); } -static void stmmac_rx_vlan(struct net_device *dev, struct sk_buff *skb) -{ - struct vlan_ethhdr *veth =3D skb_vlan_eth_hdr(skb); - __be16 vlan_proto =3D veth->h_vlan_proto; - u16 vlanid; - - if ((vlan_proto =3D=3D htons(ETH_P_8021Q) && - dev->features & NETIF_F_HW_VLAN_CTAG_RX) || - (vlan_proto =3D=3D htons(ETH_P_8021AD) && - dev->features & NETIF_F_HW_VLAN_STAG_RX)) { - /* pop the vlan tag */ - vlanid =3D ntohs(veth->h_vlan_TCI); - memmove(skb->data + VLAN_HLEN, veth, ETH_ALEN * 2); - skb_pull(skb, VLAN_HLEN); - __vlan_hwaccel_put_tag(skb, vlan_proto, vlanid); - } -} - /** * stmmac_rx_refill - refill used skb preallocated buffers * @priv: driver private structure @@ -5407,9 +5389,7 @@ static void stmmac_dispatch_skb_zc(struct stmmac_priv= *priv, u32 queue, if (priv->hw->hw_vlan_en) /* MAC level stripping. */ stmmac_rx_hw_vlan(priv, priv->hw, p, skb); - else - /* Driver level stripping. */ - stmmac_rx_vlan(priv->dev, skb); + skb->protocol =3D eth_type_trans(skb, priv->dev); if (unlikely(!coe) || !stmmac_has_ip_ethertype(skb)) @@ -5901,9 +5881,6 @@ static int stmmac_rx(struct stmmac_priv *priv, int li= mit, u32 queue) if (priv->hw->hw_vlan_en) /* MAC level stripping. */ stmmac_rx_hw_vlan(priv, priv->hw, p, skb); - else - /* Driver level stripping. */ - stmmac_rx_vlan(priv->dev, skb); skb->protocol =3D eth_type_trans(skb, priv->dev); @@ -7964,9 +7941,8 @@ static int __stmmac_dvr_probe(struct device *device, ndev->features |=3D ndev->hw_features | NETIF_F_HIGHDMA; ndev->watchdog_timeo =3D msecs_to_jiffies(watchdog); #ifdef STMMAC_VLAN_TAG_USED - /* Both mac100 and gmac support receive VLAN tag detection */ - ndev->features |=3D NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX; if (dwmac_is_xmac(priv->plat->core_type)) { + ndev->features |=3D NETIF_F_HW_VLAN_CTAG_RX; ndev->hw_features |=3D NETIF_F_HW_VLAN_CTAG_RX; priv->hw->hw_vlan_en =3D true; } -- 2.27.0