From 1c5ad5a940387ce03bc6b6ce497e3523963292bd Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 1 Oct 2020 19:42:13 -0700
Subject: [PATCH] net: dsa: b53: Set untag_bridge_pvid
Indicate to the DSA receive path that we need to untage the bridge PVID,
this allows us to remove the dsa_untag_bridge_pvid() calls from
net/dsa/tag_brcm.c.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/dsa/b53/b53_common.c | 1 +
net/dsa/tag_brcm.c | 15 ++-------------
2 files changed, 3 insertions(+), 13 deletions(-)
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 73507cff3bc48..ce18ba0b74eb1 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -2603,6 +2603,7 @@ struct b53_device *b53_switch_alloc(struct device *base,
dev->ops = ops;
ds->ops = &b53_switch_ops;
ds->configure_vlan_while_not_filtering = true;
+ ds->untag_bridge_pvid = true;
dev->vlan_enabled = ds->configure_vlan_while_not_filtering;
mutex_init(&dev->reg_mutex);
mutex_init(&dev->stats_mutex);
diff --git a/net/dsa/tag_brcm.c b/net/dsa/tag_brcm.c
index 69d6b8c597a9c..ad72dff8d5242 100644
--- a/net/dsa/tag_brcm.c
+++ b/net/dsa/tag_brcm.c
@@ -152,11 +152,6 @@ static struct sk_buff *brcm_tag_rcv_ll(struct sk_buff *skb,
/* Remove Broadcom tag and update checksum */
skb_pull_rcsum(skb, BRCM_TAG_LEN);
- /* Set the MAC header to where it should point for
- * dsa_untag_bridge_pvid() to parse the correct VLAN header.
- */
- skb_set_mac_header(skb, -ETH_HLEN);
-
skb->offload_fwd_mark = 1;
return skb;
@@ -187,7 +182,7 @@ static struct sk_buff *brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev,
nskb->data - ETH_HLEN - BRCM_TAG_LEN,
2 * ETH_ALEN);
- return dsa_untag_bridge_pvid(nskb);
+ return nskb;
}
static const struct dsa_device_ops brcm_netdev_ops = {
@@ -214,14 +209,8 @@ static struct sk_buff *brcm_tag_rcv_prepend(struct sk_buff *skb,
struct net_device *dev,
struct packet_type *pt)
{
- struct sk_buff *nskb;
-
/* tag is prepended to the packet */
- nskb = brcm_tag_rcv_ll(skb, dev, pt, ETH_HLEN);
- if (!nskb)
- return nskb;
-
- return dsa_untag_bridge_pvid(nskb);
+ return brcm_tag_rcv_ll(skb, dev, pt, ETH_HLEN);
}
static const struct dsa_device_ops brcm_prepend_netdev_ops = {
--
2.30.2