Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:

 - Add redirect_neigh() BPF packet redirect helper, allowing to limit
   stack traversal in common container configs and improving TCP
   back-pressure.

   Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain.

 - Expand netlink policy support and improve policy export to user
   space. (Ge)netlink core performs request validation according to
   declared policies. Expand the expressiveness of those policies
   (min/max length and bitmasks). Allow dumping policies for particular
   commands. This is used for feature discovery by user space (instead
   of kernel version parsing or trial and error).

 - Support IGMPv3/MLDv2 multicast listener discovery protocols in
   bridge.

 - Allow more than 255 IPv4 multicast interfaces.

 - Add support for Type of Service (ToS) reflection in SYN/SYN-ACK
   packets of TCPv6.

 - In Multi-patch TCP (MPTCP) support concurrent transmission of data on
   multiple subflows in a load balancing scenario. Enhance advertising
   addresses via the RM_ADDR/ADD_ADDR options.

 - Support SMC-Dv2 version of SMC, which enables multi-subnet
   deployments.

 - Allow more calls to same peer in RxRPC.

 - Support two new Controller Area Network (CAN) protocols - CAN-FD and
   ISO 15765-2:2016.

 - Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit
   kernel problem.

 - Add TC actions for implementing MPLS L2 VPNs.

 - Improve nexthop code - e.g. handle various corner cases when nexthop
   objects are removed from groups better, skip unnecessary
   notifications and make it easier to offload nexthops into HW by
   converting to a blocking notifier.

 - Support adding and consuming TCP header options by BPF programs,
   opening the doors for easy experimental and deployment-specific TCP
   option use.

 - Reorganize TCP congestion control (CC) initialization to simplify
   life of TCP CC implemented in BPF.

 - Add support for shipping BPF programs with the kernel and loading
   them early on boot via the User Mode Driver mechanism, hence reusing
   all the user space infra we have.

 - Support sleepable BPF programs, initially targeting LSM and tracing.

 - Add bpf_d_path() helper for returning full path for given 'struct
   path'.

 - Make bpf_tail_call compatible with bpf-to-bpf calls.

 - Allow BPF programs to call map_update_elem on sockmaps.

 - Add BPF Type Format (BTF) support for type and enum discovery, as
   well as support for using BTF within the kernel itself (current use
   is for pretty printing structures).

 - Support listing and getting information about bpf_links via the bpf
   syscall.

 - Enhance kernel interfaces around NIC firmware update. Allow
   specifying overwrite mask to control if settings etc. are reset
   during update; report expected max time operation may take to users;
   support firmware activation without machine reboot incl. limits of
   how much impact reset may have (e.g. dropping link or not).

 - Extend ethtool configuration interface to report IEEE-standard
   counters, to limit the need for per-vendor logic in user space.

 - Adopt or extend devlink use for debug, monitoring, fw update in many
   drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx,
   dpaa2-eth).

 - In mlxsw expose critical and emergency SFP module temperature alarms.
   Refactor port buffer handling to make the defaults more suitable and
   support setting these values explicitly via the DCBNL interface.

 - Add XDP support for Intel's igb driver.

 - Support offloading TC flower classification and filtering rules to
   mscc_ocelot switches.

 - Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as
   fixed interval period pulse generator and one-step timestamping in
   dpaa-eth.

 - Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3)
   offload.

 - Add Lynx PHY/PCS MDIO module, and convert various drivers which have
   this HW to use it. Convert mvpp2 to split PCS.

 - Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as
   7-port Mediatek MT7531 IP.

 - Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver,
   and wcn3680 support in wcn36xx.

 - Improve performance for packets which don't require much offloads on
   recent Mellanox NICs by 20% by making multiple packets share a
   descriptor entry.

 - Move chelsio inline crypto drivers (for TLS and IPsec) from the
   crypto subtree to drivers/net. Move MDIO drivers out of the phy
   directory.

 - Clean up a lot of W=1 warnings, reportedly the actively developed
   subsections of networking drivers should now build W=1 warning free.

 - Make sure drivers don't use in_interrupt() to dynamically adapt their
   code. Convert tasklets to use new tasklet_setup API (sadly this
   conversion is not yet complete).

* tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits)
  Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"
  net, sockmap: Don't call bpf_prog_put() on NULL pointer
  bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo
  bpf, sockmap: Add locking annotations to iterator
  netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements
  net: fix pos incrementment in ipv6_route_seq_next
  net/smc: fix invalid return code in smcd_new_buf_create()
  net/smc: fix valid DMBE buffer sizes
  net/smc: fix use-after-free of delayed events
  bpfilter: Fix build error with CONFIG_BPFILTER_UMH
  cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr
  net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info
  bpf: Fix register equivalence tracking.
  rxrpc: Fix loss of final ack on shutdown
  rxrpc: Fix bundle counting for exclusive connections
  netfilter: restore NF_INET_NUMHOOKS
  ibmveth: Identify ingress large send packets.
  ibmveth: Switch order of ibmveth_helper calls.
  cxgb4: handle 4-tuple PEDIT to NAT mode translation
  selftests: Add VRF route leaking tests
  ...

4 files changed, 19 insertions, 33 deletions

diff --git a/drivers/net/ethernet/amd/sun3lance.c b/drivers/net/ethernet/amd/sun3lance.c
index e1fde585fd0d..00ae1081254d 100644
--- a/drivers/net/ethernet/amd/sun3lance.c
+++ b/drivers/net/ethernet/amd/sun3lance.c
@@ -657,16 +657,6 @@ static irqreturn_t lance_interrupt( int irq, void *dev_id)
 	struct net_device *dev = dev_id;
 	struct lance_private *lp = netdev_priv(dev);
 	int csr0;
-	static int in_interrupt;
-
-	if (dev == NULL) {
-		DPRINTK( 1, ( "lance_interrupt(): invalid dev_id\n" ));
-		return IRQ_NONE;
-	}
-
-	if (in_interrupt)
-		DPRINTK( 2, ( "%s: Re-entering the interrupt handler.\n", dev->name ));
-	in_interrupt = 1;
 
  still_more:
 	flush_cache_all();
@@ -774,7 +764,6 @@ static irqreturn_t lance_interrupt( int irq, void *dev_id)
 
 	DPRINTK( 2, ( "%s: exiting interrupt, csr0=%#04x.\n",
 				  dev->name, DREG ));
-	in_interrupt = 0;
 	return IRQ_HANDLED;
 }
 
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index 4ba75551cb17..2709a2db5657 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -403,9 +403,9 @@ static bool xgbe_ecc_ded(struct xgbe_prv_data *pdata, unsigned long *period,
 	return false;
 }
 
-static void xgbe_ecc_isr_task(unsigned long data)
+static void xgbe_ecc_isr_task(struct tasklet_struct *t)
 {
-	struct xgbe_prv_data *pdata = (struct xgbe_prv_data *)data;
+	struct xgbe_prv_data *pdata = from_tasklet(pdata, t, tasklet_ecc);
 	unsigned int ecc_isr;
 	bool stop = false;
 
@@ -468,14 +468,14 @@ static irqreturn_t xgbe_ecc_isr(int irq, void *data)
 	if (pdata->isr_as_tasklet)
 		tasklet_schedule(&pdata->tasklet_ecc);
 	else
-		xgbe_ecc_isr_task((unsigned long)pdata);
+		xgbe_ecc_isr_task(&pdata->tasklet_ecc);
 
 	return IRQ_HANDLED;
 }
 
-static void xgbe_isr_task(unsigned long data)
+static void xgbe_isr_task(struct tasklet_struct *t)
 {
-	struct xgbe_prv_data *pdata = (struct xgbe_prv_data *)data;
+	struct xgbe_prv_data *pdata = from_tasklet(pdata, t, tasklet_dev);
 	struct xgbe_hw_if *hw_if = &pdata->hw_if;
 	struct xgbe_channel *channel;
 	unsigned int dma_isr, dma_ch_isr;
@@ -582,7 +582,7 @@ isr_done:
 
 	/* If there is not a separate ECC irq, handle it here */
 	if (pdata->vdata->ecc_support && (pdata->dev_irq == pdata->ecc_irq))
-		xgbe_ecc_isr_task((unsigned long)pdata);
+		xgbe_ecc_isr_task(&pdata->tasklet_ecc);
 
 	/* If there is not a separate I2C irq, handle it here */
 	if (pdata->vdata->i2c_support && (pdata->dev_irq == pdata->i2c_irq))
@@ -607,7 +607,7 @@ static irqreturn_t xgbe_isr(int irq, void *data)
 	if (pdata->isr_as_tasklet)
 		tasklet_schedule(&pdata->tasklet_dev);
 	else
-		xgbe_isr_task((unsigned long)pdata);
+		xgbe_isr_task(&pdata->tasklet_dev);
 
 	return IRQ_HANDLED;
 }
@@ -991,9 +991,8 @@ static int xgbe_request_irqs(struct xgbe_prv_data *pdata)
 	unsigned int i;
 	int ret;
 
-	tasklet_init(&pdata->tasklet_dev, xgbe_isr_task, (unsigned long)pdata);
-	tasklet_init(&pdata->tasklet_ecc, xgbe_ecc_isr_task,
-		     (unsigned long)pdata);
+	tasklet_setup(&pdata->tasklet_dev, xgbe_isr_task);
+	tasklet_setup(&pdata->tasklet_ecc, xgbe_ecc_isr_task);
 
 	ret = devm_request_irq(pdata->dev, pdata->dev_irq, xgbe_isr, 0,
 			       netdev_name(netdev), pdata);
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-i2c.c b/drivers/net/ethernet/amd/xgbe/xgbe-i2c.c
index 4d9062d35930..22d4fc547a0a 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-i2c.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-i2c.c
@@ -274,9 +274,9 @@ static void xgbe_i2c_clear_isr_interrupts(struct xgbe_prv_data *pdata,
 		XI2C_IOREAD(pdata, IC_CLR_STOP_DET);
 }
 
-static void xgbe_i2c_isr_task(unsigned long data)
+static void xgbe_i2c_isr_task(struct tasklet_struct *t)
 {
-	struct xgbe_prv_data *pdata = (struct xgbe_prv_data *)data;
+	struct xgbe_prv_data *pdata = from_tasklet(pdata, t, tasklet_i2c);
 	struct xgbe_i2c_op_state *state = &pdata->i2c.op_state;
 	unsigned int isr;
 
@@ -324,7 +324,7 @@ static irqreturn_t xgbe_i2c_isr(int irq, void *data)
 	if (pdata->isr_as_tasklet)
 		tasklet_schedule(&pdata->tasklet_i2c);
 	else
-		xgbe_i2c_isr_task((unsigned long)pdata);
+		xgbe_i2c_isr_task(&pdata->tasklet_i2c);
 
 	return IRQ_HANDLED;
 }
@@ -369,7 +369,7 @@ static void xgbe_i2c_set_target(struct xgbe_prv_data *pdata, unsigned int addr)
 
 static irqreturn_t xgbe_i2c_combined_isr(struct xgbe_prv_data *pdata)
 {
-	xgbe_i2c_isr_task((unsigned long)pdata);
+	xgbe_i2c_isr_task(&pdata->tasklet_i2c);
 
 	return IRQ_HANDLED;
 }
@@ -462,8 +462,7 @@ static int xgbe_i2c_start(struct xgbe_prv_data *pdata)
 
 	/* If we have a separate I2C irq, enable it */
 	if (pdata->dev_irq != pdata->i2c_irq) {
-		tasklet_init(&pdata->tasklet_i2c, xgbe_i2c_isr_task,
-			     (unsigned long)pdata);
+		tasklet_setup(&pdata->tasklet_i2c, xgbe_i2c_isr_task);
 
 		ret = devm_request_irq(pdata->dev, pdata->i2c_irq,
 				       xgbe_i2c_isr, 0, pdata->i2c_name,
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index 8a3a60bb2688..93ef5a30cb8d 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -688,9 +688,9 @@ static void xgbe_an73_isr(struct xgbe_prv_data *pdata)
 	}
 }
 
-static void xgbe_an_isr_task(unsigned long data)
+static void xgbe_an_isr_task(struct tasklet_struct *t)
 {
-	struct xgbe_prv_data *pdata = (struct xgbe_prv_data *)data;
+	struct xgbe_prv_data *pdata = from_tasklet(pdata, t, tasklet_an);
 
 	netif_dbg(pdata, intr, pdata->netdev, "AN interrupt received\n");
 
@@ -715,14 +715,14 @@ static irqreturn_t xgbe_an_isr(int irq, void *data)
 	if (pdata->isr_as_tasklet)
 		tasklet_schedule(&pdata->tasklet_an);
 	else
-		xgbe_an_isr_task((unsigned long)pdata);
+		xgbe_an_isr_task(&pdata->tasklet_an);
 
 	return IRQ_HANDLED;
 }
 
 static irqreturn_t xgbe_an_combined_isr(struct xgbe_prv_data *pdata)
 {
-	xgbe_an_isr_task((unsigned long)pdata);
+	xgbe_an_isr_task(&pdata->tasklet_an);
 
 	return IRQ_HANDLED;
 }
@@ -1414,8 +1414,7 @@ static int xgbe_phy_start(struct xgbe_prv_data *pdata)
 
 	/* If we have a separate AN irq, enable it */
 	if (pdata->dev_irq != pdata->an_irq) {
-		tasklet_init(&pdata->tasklet_an, xgbe_an_isr_task,
-			     (unsigned long)pdata);
+		tasklet_setup(&pdata->tasklet_an, xgbe_an_isr_task);
 
 		ret = devm_request_irq(pdata->dev, pdata->an_irq,
 				       xgbe_an_isr, 0, pdata->an_name,