Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2025-05-19 (ice, idpf)

For ice:
Jake removes incorrect incrementing of MAC filter count.

Dave adds check for, prerequisite, switchdev mode before setting up LAG.

For idpf:
Pavan stores max_tx_hdr_size to prevent NULL pointer dereference during
reset.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  idpf: fix null-ptr-deref in idpf_features_check
  ice: Fix LACP bonds without SRIOV environment
  ice: fix vf->num_mac count with port representors
====================

Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: kuba-moo

drivers/net/ethernet/intel/ice/ice_lag.c

@@ -1321,12 +1321,18 @@ static void ice_lag_changeupper_event(struct ice_lag *lag, void *ptr)
 		 */
 		if (!primary_lag) {
 			lag->primary = true;
+			if (!ice_is_switchdev_running(lag->pf))
+				return;
+
 			/* Configure primary's SWID to be shared */
 			ice_lag_primary_swid(lag, true);
 			primary_lag = lag;
 		} else {
 			u16 swid;
 
+			if (!ice_is_switchdev_running(primary_lag->pf))
+				return;
+
 			swid = primary_lag->pf->hw.port_info->sw_id;
 			ice_lag_set_swid(swid, lag, true);
 			ice_lag_add_prune_list(primary_lag, lag->pf);

drivers/net/ethernet/intel/ice/ice_virtchnl.c

@@ -4275,7 +4275,6 @@ static int ice_vc_repr_add_mac(struct ice_vf *vf, u8 *msg)
 		}
 
 		ice_vfhw_mac_add(vf, &al->list[i]);
-		vf->num_mac++;
 		break;
 	}
 

drivers/net/ethernet/intel/idpf/idpf.h

@@ -143,6 +143,7 @@ enum idpf_vport_state {
  * @vport_id: Vport identifier
  * @link_speed_mbps: Link speed in mbps
  * @vport_idx: Relative vport index
+ * @max_tx_hdr_size: Max header length hardware can support
  * @state: See enum idpf_vport_state
  * @netstats: Packet and byte stats
  * @stats_lock: Lock to protect stats update
@@ -153,6 +154,7 @@ struct idpf_netdev_priv {
 	u32 vport_id;
 	u32 link_speed_mbps;
 	u16 vport_idx;
+	u16 max_tx_hdr_size;
 	enum idpf_vport_state state;
 	struct rtnl_link_stats64 netstats;
 	spinlock_t stats_lock;

drivers/net/ethernet/intel/idpf/idpf_lib.c

@@ -723,6 +723,7 @@ static int idpf_cfg_netdev(struct idpf_vport *vport)
 		np->vport = vport;
 		np->vport_idx = vport->idx;
 		np->vport_id = vport->vport_id;
+		np->max_tx_hdr_size = idpf_get_max_tx_hdr_size(adapter);
 		vport->netdev = netdev;
 
 		return idpf_init_mac_addr(vport, netdev);
@@ -740,6 +741,7 @@ static int idpf_cfg_netdev(struct idpf_vport *vport)
 	np->adapter = adapter;
 	np->vport_idx = vport->idx;
 	np->vport_id = vport->vport_id;
+	np->max_tx_hdr_size = idpf_get_max_tx_hdr_size(adapter);
 
 	spin_lock_init(&np->stats_lock);
 
@@ -2203,8 +2205,8 @@ static netdev_features_t idpf_features_check(struct sk_buff *skb,
 					     struct net_device *netdev,
 					     netdev_features_t features)
 {
-	struct idpf_vport *vport = idpf_netdev_to_vport(netdev);
-	struct idpf_adapter *adapter = vport->adapter;
+	struct idpf_netdev_priv *np = netdev_priv(netdev);
+	u16 max_tx_hdr_size = np->max_tx_hdr_size;
 	size_t len;
 
 	/* No point in doing any of this if neither checksum nor GSO are
@@ -2227,7 +2229,7 @@ static netdev_features_t idpf_features_check(struct sk_buff *skb,
 		goto unsupported;
 
 	len = skb_network_header_len(skb);
-	if (unlikely(len > idpf_get_max_tx_hdr_size(adapter)))
+	if (unlikely(len > max_tx_hdr_size))
 		goto unsupported;
 
 	if (!skb->encapsulation)
@@ -2240,7 +2242,7 @@ static netdev_features_t idpf_features_check(struct sk_buff *skb,
 
 	/* IPLEN can support at most 127 dwords */
 	len = skb_inner_network_header_len(skb);
-	if (unlikely(len > idpf_get_max_tx_hdr_size(adapter)))
+	if (unlikely(len > max_tx_hdr_size))
 		goto unsupported;
 
 	/* No need to validate L4LEN as TCP is the only protocol with a