Merge tag 'net-6.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from CAN, WiFi and netfilter.

  We have still a comple of regressions open due to the recent
  drivers locking refactor. The patches are in-flight, but not
  ready yet.

  Current release - regressions:

   - core: lock netdevices during dev_shutdown

   - sch_htb: make htb_deactivate() idempotent

   - eth: virtio-net: don't re-enable refill work too early

  Current release - new code bugs:

   - eth: icssg-prueth: fix kernel panic during concurrent Tx queue
     access

  Previous releases - regressions:

   - gre: fix again IPv6 link-local address generation.

   - eth: b53: fix learning on VLAN unaware bridges

  Previous releases - always broken:

   - wifi: fix out-of-bounds access during multi-link element
     defragmentation

   - can:
       - initialize spin lock on device probe
       - fix order of unregistration calls

   - openvswitch: fix unsafe attribute parsing in output_userspace()

   - eth:
       - virtio-net: fix total qstat values
       - mtk_eth_soc: reset all TX queues on DMA free
       - fbnic: firmware IPC mailbox fixes"

* tag 'net-6.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (55 commits)
  virtio-net: fix total qstat values
  net: export a helper for adding up queue stats
  fbnic: Do not allow mailbox to toggle to ready outside fbnic_mbx_poll_tx_ready
  fbnic: Pull fbnic_fw_xmit_cap_msg use out of interrupt context
  fbnic: Improve responsiveness of fbnic_mbx_poll_tx_ready
  fbnic: Cleanup handling of completions
  fbnic: Actually flush_tx instead of stalling out
  fbnic: Add additional handling of IRQs
  fbnic: Gate AXI read/write enabling on FW mailbox
  fbnic: Fix initialization of mailbox descriptor rings
  net: dsa: b53: do not set learning and unicast/multicast on up
  net: dsa: b53: fix learning on VLAN unaware bridges
  net: dsa: b53: fix toggling vlan_filtering
  net: dsa: b53: do not program vlans when vlan filtering is off
  net: dsa: b53: do not allow to configure VLAN 0
  net: dsa: b53: always rejoin default untagged VLAN on bridge leave
  net: dsa: b53: fix VLAN ID for untagged vlan on bridge leave
  net: dsa: b53: fix flushing old pvid VLAN on pvid change
  net: dsa: b53: fix clearing PVID of a port
  net: dsa: b53: keep CPU port always tagged again
  ...

1 files changed, 18 insertions, 29 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_adapter.c b/drivers/net/ethernet/intel/ice/ice_adapter.c
index 01a08cfd0090..66e070095d1b 100644
--- a/drivers/net/ethernet/intel/ice/ice_adapter.c
+++ b/drivers/net/ethernet/intel/ice/ice_adapter.c
@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 // SPDX-FileCopyrightText: Copyright Red Hat
 
-#include <linux/bitfield.h>
 #include <linux/cleanup.h>
 #include <linux/mutex.h>
 #include <linux/pci.h>
@@ -14,32 +13,16 @@
 static DEFINE_XARRAY(ice_adapters);
 static DEFINE_MUTEX(ice_adapters_mutex);
 
-/* PCI bus number is 8 bits. Slot is 5 bits. Domain can have the rest. */
-#define INDEX_FIELD_DOMAIN GENMASK(BITS_PER_LONG - 1, 13)
-#define INDEX_FIELD_DEV    GENMASK(31, 16)
-#define INDEX_FIELD_BUS    GENMASK(12, 5)
-#define INDEX_FIELD_SLOT   GENMASK(4, 0)
-
-static unsigned long ice_adapter_index(const struct pci_dev *pdev)
+static unsigned long ice_adapter_index(u64 dsn)
 {
-	unsigned int domain = pci_domain_nr(pdev->bus);
-
-	WARN_ON(domain > FIELD_MAX(INDEX_FIELD_DOMAIN));
-
-	switch (pdev->device) {
-	case ICE_DEV_ID_E825C_BACKPLANE:
-	case ICE_DEV_ID_E825C_QSFP:
-	case ICE_DEV_ID_E825C_SFP:
-	case ICE_DEV_ID_E825C_SGMII:
-		return FIELD_PREP(INDEX_FIELD_DEV, pdev->device);
-	default:
-		return FIELD_PREP(INDEX_FIELD_DOMAIN, domain) |
-		       FIELD_PREP(INDEX_FIELD_BUS,    pdev->bus->number) |
-		       FIELD_PREP(INDEX_FIELD_SLOT,   PCI_SLOT(pdev->devfn));
-	}
+#if BITS_PER_LONG == 64
+	return dsn;
+#else
+	return (u32)dsn ^ (u32)(dsn >> 32);
+#endif
 }
 
-static struct ice_adapter *ice_adapter_new(void)
+static struct ice_adapter *ice_adapter_new(u64 dsn)
 {
 	struct ice_adapter *adapter;
 
@@ -47,6 +30,7 @@ static struct ice_adapter *ice_adapter_new(void)
 	if (!adapter)
 		return NULL;
 
+	adapter->device_serial_number = dsn;
 	spin_lock_init(&adapter->ptp_gltsyn_time_lock);
 	refcount_set(&adapter->refcount, 1);
 
@@ -77,23 +61,26 @@ static void ice_adapter_free(struct ice_adapter *adapter)
  * Return:  Pointer to ice_adapter on success.
  *          ERR_PTR() on error. -ENOMEM is the only possible error.
  */
-struct ice_adapter *ice_adapter_get(const struct pci_dev *pdev)
+struct ice_adapter *ice_adapter_get(struct pci_dev *pdev)
 {
-	unsigned long index = ice_adapter_index(pdev);
+	u64 dsn = pci_get_dsn(pdev);
 	struct ice_adapter *adapter;
+	unsigned long index;
 	int err;
 
+	index = ice_adapter_index(dsn);
 	scoped_guard(mutex, &ice_adapters_mutex) {
 		err = xa_insert(&ice_adapters, index, NULL, GFP_KERNEL);
 		if (err == -EBUSY) {
 			adapter = xa_load(&ice_adapters, index);
 			refcount_inc(&adapter->refcount);
+			WARN_ON_ONCE(adapter->device_serial_number != dsn);
 			return adapter;
 		}
 		if (err)
 			return ERR_PTR(err);
 
-		adapter = ice_adapter_new();
+		adapter = ice_adapter_new(dsn);
 		if (!adapter)
 			return ERR_PTR(-ENOMEM);
 		xa_store(&ice_adapters, index, adapter, GFP_KERNEL);
@@ -110,11 +97,13 @@ struct ice_adapter *ice_adapter_get(const struct pci_dev *pdev)
  *
  * Context: Process, may sleep.
  */
-void ice_adapter_put(const struct pci_dev *pdev)
+void ice_adapter_put(struct pci_dev *pdev)
 {
-	unsigned long index = ice_adapter_index(pdev);
+	u64 dsn = pci_get_dsn(pdev);
 	struct ice_adapter *adapter;
+	unsigned long index;
 
+	index = ice_adapter_index(dsn);
 	scoped_guard(mutex, &ice_adapters_mutex) {
 		adapter = xa_load(&ice_adapters, index);
 		if (WARN_ON(!adapter))