diff options
| author | Mark Brown <broonie@kernel.org> | 2025-01-09 11:22:28 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-01-09 11:22:28 +0000 |
| commit | 5640fd07b90ed43225704fecfbbda9d402dba1cf (patch) | |
| tree | 7c9e9e13681499882d3c5d710e37b2f3b088e831 /net/dsa/tag.h | |
| parent | a38509fd5cdc125ef54562760a05c68ebd4812bc (diff) | |
| parent | 9d89551994a430b50c4fffcb1e617a057fa76e20 (diff) | |
spi: Merge up v6.13-rc6
This fixes the i.MX6 and newer Meson platforms in my CI.
Diffstat (limited to 'net/dsa/tag.h')
| -rw-r--r-- | net/dsa/tag.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/net/dsa/tag.h b/net/dsa/tag.h index d5707870906b..5d80ddad4ff6 100644 --- a/net/dsa/tag.h +++ b/net/dsa/tag.h @@ -138,9 +138,10 @@ static inline void dsa_software_untag_vlan_unaware_bridge(struct sk_buff *skb, * dsa_software_vlan_untag: Software VLAN untagging in DSA receive path * @skb: Pointer to socket buffer (packet) * - * Receive path method for switches which cannot avoid tagging all packets - * towards the CPU port. Called when ds->untag_bridge_pvid (legacy) or - * ds->untag_vlan_aware_bridge_pvid is set to true. + * Receive path method for switches which send some packets as VLAN-tagged + * towards the CPU port (generally from VLAN-aware bridge ports) even when the + * packet was not tagged on the wire. Called when ds->untag_bridge_pvid + * (legacy) or ds->untag_vlan_aware_bridge_pvid is set to true. * * As a side effect of this method, any VLAN tag from the skb head is moved * to hwaccel. @@ -149,14 +150,19 @@ static inline struct sk_buff *dsa_software_vlan_untag(struct sk_buff *skb) { struct dsa_port *dp = dsa_user_to_port(skb->dev); struct net_device *br = dsa_port_bridge_dev_get(dp); - u16 vid; + u16 vid, proto; + int err; /* software untagging for standalone ports not yet necessary */ if (!br) return skb; + err = br_vlan_get_proto(br, &proto); + if (err) + return skb; + /* Move VLAN tag from data to hwaccel */ - if (!skb_vlan_tag_present(skb)) { + if (!skb_vlan_tag_present(skb) && skb->protocol == htons(proto)) { skb = skb_vlan_untag(skb); if (!skb) return NULL; |