[PATCH net-next 2/4] net: dsa: b53: Set untag_bridge_pvid

[Florian Fainelli]

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.faine...@gmail.com>
---
 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 73507cff3bc4..ce18ba0b74eb 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 69d6b8c597a9..ad72dff8d524 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 = {
-- 
2.25.1