Merge tag 'net-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Networking fixes including fixes from can, xfrm, wireless,
  wireless-drivers and netfilter trees. Nothing scary, Intel
  WiFi-related fixes seemed most notable to the users.

  Current release - regressions:

   - dsa: microchip: ksz8795: fix KSZ8794 port map again to program the
     CPU port correctly

  Current release - new code bugs:

   - iwlwifi: pcie: reschedule in long-running memory reads

  Previous releases - regressions:

   - iwlwifi: dbg: don't try to overwrite read-only FW data

   - iwlwifi: provide gso_type to GSO packets

   - octeontx2: make sure the buffer is 128 byte aligned

   - tcp: make TCP_USER_TIMEOUT accurate for zero window probes

   - xfrm: fix wraparound in xfrm_policy_addr_delta()

   - xfrm: fix oops in xfrm_replay_advance_bmp due to a race between
     CPUs in presence of packet reorder

   - tcp: fix TLP timer not set when CA_STATE changes from DISORDER to
     OPEN

   - wext: fix NULL-ptr-dereference with cfg80211's lack of commit()

  Previous releases - always broken:

   - igc: fix link speed advertising

   - stmmac: configure EHL PSE0 GbE and PSE1 GbE to 32 bits DMA
     addressing

   - team: protect features update by RCU to avoid deadlock

   - xfrm: fix disable_xfrm sysctl when used on xfrm interfaces
     themselves

   - fec: fix temporary RMII clock reset on link up

   - can: dev: prevent potential information leak in can_fill_info()

  Misc:

   - mrp: fix bad packing of MRP test packet structures

   - uapi: fix big endian definition of ipv6_rpl_sr_hdr

   - add David Ahern to IPv4/IPv6 maintainers"

* tag 'net-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (86 commits)
  rxrpc: Fix memory leak in rxrpc_lookup_local
  mlxsw: spectrum_span: Do not overwrite policer configuration
  selftests: forwarding: Specify interface when invoking mausezahn
  stmmac: intel: Configure EHL PSE0 GbE and PSE1 GbE to 32 bits DMA addressing
  net: usb: cdc_ether: added support for Thales Cinterion PLSx3 modem family.
  ibmvnic: Ensure that CRQ entry read are correctly ordered
  MAINTAINERS: add missing header for bonding
  net: decnet: fix netdev refcount leaking on error path
  net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP
  can: dev: prevent potential information leak in can_fill_info()
  net: fec: Fix temporary RMII clock reset on link up
  net: lapb: Add locking to the lapb module
  team: protect features update by RCU to avoid deadlock
  MAINTAINERS: add David Ahern to IPv4/IPv6 maintainers
  net/mlx5: CT: Fix incorrect removal of tuple_nat_node from nat rhashtable
  net/mlx5e: Revert parameters on errors when changing MTU and LRO state without reset
  net/mlx5e: Revert parameters on errors when changing trust state without reset
  net/mlx5e: Correctly handle changing the number of queues when the interface is down
  net/mlx5e: Fix CT rule + encap slow path offload and deletion
  net/mlx5e: Disable hw-tc-offload when MLX5_CLS_ACT config is disabled
  ...

1 files changed, 20 insertions, 10 deletions

diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index c973db101b72..a4570ba29c83 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -1187,6 +1187,20 @@ static const struct ksz_chip_data ksz8795_switch_chips[] = {
 		.port_cnt = 5,		/* total cpu and user ports */
 	},
 	{
+		/*
+		 * WARNING
+		 * =======
+		 * KSZ8794 is similar to KSZ8795, except the port map
+		 * contains a gap between external and CPU ports, the
+		 * port map is NOT continuous. The per-port register
+		 * map is shifted accordingly too, i.e. registers at
+		 * offset 0x40 are NOT used on KSZ8794 and they ARE
+		 * used on KSZ8795 for external port 3.
+		 *           external  cpu
+		 * KSZ8794   0,1,2      4
+		 * KSZ8795   0,1,2,3    4
+		 * KSZ8765   0,1,2,3    4
+		 */
 		.chip_id = 0x8794,
 		.dev_name = "KSZ8794",
 		.num_vlans = 4096,
@@ -1220,9 +1234,13 @@ static int ksz8795_switch_init(struct ksz_device *dev)
 			dev->num_vlans = chip->num_vlans;
 			dev->num_alus = chip->num_alus;
 			dev->num_statics = chip->num_statics;
-			dev->port_cnt = chip->port_cnt;
+			dev->port_cnt = fls(chip->cpu_ports);
+			dev->cpu_port = fls(chip->cpu_ports) - 1;
+			dev->phy_port_cnt = dev->port_cnt - 1;
 			dev->cpu_ports = chip->cpu_ports;
-
+			dev->host_mask = chip->cpu_ports;
+			dev->port_mask = (BIT(dev->phy_port_cnt) - 1) |
+					 chip->cpu_ports;
 			break;
 		}
 	}
@@ -1231,17 +1249,9 @@ static int ksz8795_switch_init(struct ksz_device *dev)
 	if (!dev->cpu_ports)
 		return -ENODEV;
 
-	dev->port_mask = BIT(dev->port_cnt) - 1;
-	dev->port_mask |= dev->host_mask;
-
 	dev->reg_mib_cnt = KSZ8795_COUNTER_NUM;
 	dev->mib_cnt = ARRAY_SIZE(mib_names);
 
-	dev->phy_port_cnt = dev->port_cnt - 1;
-
-	dev->cpu_port = dev->port_cnt - 1;
-	dev->host_mask = BIT(dev->cpu_port);
-
 	dev->ports = devm_kzalloc(dev->dev,
 				  dev->port_cnt * sizeof(struct ksz_port),
 				  GFP_KERNEL);