Including fixes from bluetooth.

Current release - new code bugs:
 
   - netfilter: complete validation of user input
 
   - mlx5: disallow SRIOV switchdev mode when in multi-PF netdev
 
 Previous releases - regressions:
 
   - core: fix u64_stats_init() for lockdep when used repeatedly in one file
 
   - ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr
 
   - bluetooth: fix memory leak in hci_req_sync_complete()
 
   - batman-adv: avoid infinite loop trying to resize local TT
 
   - drv: geneve: fix header validation in geneve[6]_xmit_skb
 
   - drv: bnxt_en: fix possible memory leak in bnxt_rdma_aux_device_init()
 
   - drv: mlx5: offset comp irq index in name by one
 
   - drv: ena: avoid double-free clearing stale tx_info->xdpf value
 
   - drv: pds_core: fix pdsc_check_pci_health deadlock
 
 Previous releases - always broken:
 
   - xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING
 
   - bluetooth: fix setsockopt not validating user input
 
   - af_unix: clear stale u->oob_skb.
 
   - nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies
 
   - drv: virtio_net: fix guest hangup on invalid RSS update
 
   - drv: mlx5e: Fix mlx5e_priv_init() cleanup flow
 
   - dsa: mt7530: trap link-local frames regardless of ST Port State
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from bluetooth.

  Current release - new code bugs:

   - netfilter: complete validation of user input

   - mlx5: disallow SRIOV switchdev mode when in multi-PF netdev

  Previous releases - regressions:

   - core: fix u64_stats_init() for lockdep when used repeatedly in one
     file

   - ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr

   - bluetooth: fix memory leak in hci_req_sync_complete()

   - batman-adv: avoid infinite loop trying to resize local TT

   - drv: geneve: fix header validation in geneve[6]_xmit_skb

   - drv: bnxt_en: fix possible memory leak in
     bnxt_rdma_aux_device_init()

   - drv: mlx5: offset comp irq index in name by one

   - drv: ena: avoid double-free clearing stale tx_info->xdpf value

   - drv: pds_core: fix pdsc_check_pci_health deadlock

  Previous releases - always broken:

   - xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING

   - bluetooth: fix setsockopt not validating user input

   - af_unix: clear stale u->oob_skb.

   - nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies

   - drv: virtio_net: fix guest hangup on invalid RSS update

   - drv: mlx5e: Fix mlx5e_priv_init() cleanup flow

   - dsa: mt7530: trap link-local frames regardless of ST Port State"

* tag 'net-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (59 commits)
  net: ena: Set tx_info->xdpf value to NULL
  net: ena: Fix incorrect descriptor free behavior
  net: ena: Wrong missing IO completions check order
  net: ena: Fix potential sign extension issue
  af_unix: Fix garbage collector racing against connect()
  net: dsa: mt7530: trap link-local frames regardless of ST Port State
  Revert "s390/ism: fix receive message buffer allocation"
  net: sparx5: fix wrong config being used when reconfiguring PCS
  net/mlx5: fix possible stack overflows
  net/mlx5: Disallow SRIOV switchdev mode when in multi-PF netdev
  net/mlx5e: RSS, Block XOR hash with over 128 channels
  net/mlx5e: Do not produce metadata freelist entries in Tx port ts WQE xmit
  net/mlx5e: HTB, Fix inconsistencies with QoS SQs number
  net/mlx5e: Fix mlx5e_priv_init() cleanup flow
  net/mlx5e: RSS, Block changing channels number when RXFH is configured
  net/mlx5: Correctly compare pkt reformat ids
  net/mlx5: Properly link new fs rules into the tree
  net/mlx5: offset comp irq index in name by one
  net/mlx5: Register devlink first under devlink lock
  net/mlx5: E-switch, store eswitch pointer before registering devlink_param
  ...

MAINTAINERS

@@ -2191,7 +2191,6 @@ N:	mxs
 
 ARM/FREESCALE LAYERSCAPE ARM ARCHITECTURE
 M:	Shawn Guo <shawnguo@kernel.org>
-M:	Li Yang <leoyang.li@nxp.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git
@@ -8524,7 +8523,6 @@ S:	Maintained
 F:	drivers/video/fbdev/fsl-diu-fb.*
 
 FREESCALE DMA DRIVER
-M:	Li Yang <leoyang.li@nxp.com>
 M:	Zhang Wei <zw@zh-kernel.org>
 L:	linuxppc-dev@lists.ozlabs.org
 S:	Maintained
@@ -8689,10 +8687,9 @@ F:	drivers/soc/fsl/qe/tsa.h
 F:	include/dt-bindings/soc/cpm1-fsl,tsa.h
 
 FREESCALE QUICC ENGINE UCC ETHERNET DRIVER
-M:	Li Yang <leoyang.li@nxp.com>
 L:	netdev@vger.kernel.org
 L:	linuxppc-dev@lists.ozlabs.org
-S:	Maintained
+S:	Orphan
 F:	drivers/net/ethernet/freescale/ucc_geth*
 
 FREESCALE QUICC ENGINE UCC HDLC DRIVER
@@ -8709,10 +8706,9 @@ S:	Maintained
 F:	drivers/tty/serial/ucc_uart.c
 
 FREESCALE SOC DRIVERS
-M:	Li Yang <leoyang.li@nxp.com>
 L:	linuxppc-dev@lists.ozlabs.org
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
+S:	Orphan
 F:	Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml
 F:	Documentation/devicetree/bindings/soc/fsl/
 F:	drivers/soc/fsl/
@@ -8746,10 +8742,9 @@ F:	Documentation/devicetree/bindings/sound/fsl,qmc-audio.yaml
 F:	sound/soc/fsl/fsl_qmc_audio.c
 
 FREESCALE USB PERIPHERAL DRIVERS
-M:	Li Yang <leoyang.li@nxp.com>
 L:	linux-usb@vger.kernel.org
 L:	linuxppc-dev@lists.ozlabs.org
-S:	Maintained
+S:	Orphan
 F:	drivers/usb/gadget/udc/fsl*
 
 FREESCALE USB PHY DRIVER

drivers/isdn/mISDN/socket.c

@@ -401,23 +401,23 @@ data_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 }
 
 static int data_sock_setsockopt(struct socket *sock, int level, int optname,
-				sockptr_t optval, unsigned int len)
+				sockptr_t optval, unsigned int optlen)
 {
 	struct sock *sk = sock->sk;
 	int err = 0, opt = 0;
 
 	if (*debug & DEBUG_SOCKET)
 		printk(KERN_DEBUG "%s(%p, %d, %x, optval, %d)\n", __func__, sock,
-		       level, optname, len);
+		       level, optname, optlen);
 
 	lock_sock(sk);
 
 	switch (optname) {
 	case MISDN_TIME_STAMP:
-		if (copy_from_sockptr(&opt, optval, sizeof(int))) {
+		err = copy_safe_from_sockptr(&opt, sizeof(opt),
-			err = -EFAULT;
+					     optval, optlen);
+		if (err)
 			break;
-		}
 
 		if (opt)
 			_pms(sk)->cmask |= MISDN_TIME_STAMP;

drivers/net/dsa/mt7530.c

@@ -950,20 +950,173 @@ static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface)
 	mutex_unlock(&priv->reg_mutex);
 }
 
-/* On page 205, section "8.6.3 Frame filtering" of the active standard, IEEE Std
+/* In Clause 5 of IEEE Std 802-2014, two sublayers of the data link layer (DLL)
- * 802.1Q™-2022, it is stated that frames with 01:80:C2:00:00:00-0F as MAC DA
+ * of the Open Systems Interconnection basic reference model (OSI/RM) are
- * must only be propagated to C-VLAN and MAC Bridge components. That means
+ * described; the medium access control (MAC) and logical link control (LLC)
- * VLAN-aware and VLAN-unaware bridges. On the switch designs with CPU ports,
+ * sublayers. The MAC sublayer is the one facing the physical layer.
- * these frames are supposed to be processed by the CPU (software). So we make
- * the switch only forward them to the CPU port. And if received from a CPU
- * port, forward to a single port. The software is responsible of making the
- * switch conform to the latter by setting a single port as destination port on
- * the special tag.
  *
- * This switch intellectual property cannot conform to this part of the standard
+ * In 8.2 of IEEE Std 802.1Q-2022, the Bridge architecture is described. A
- * fully. Whilst the REV_UN frame tag covers the remaining :04-0D and :0F MAC
+ * Bridge component comprises a MAC Relay Entity for interconnecting the Ports
- * DAs, it also includes :22-FF which the scope of propagation is not supposed
+ * of the Bridge, at least two Ports, and higher layer entities with at least a
- * to be restricted for these MAC DAs.
+ * Spanning Tree Protocol Entity included.
+ *
+ * Each Bridge Port also functions as an end station and shall provide the MAC
+ * Service to an LLC Entity. Each instance of the MAC Service is provided to a
+ * distinct LLC Entity that supports protocol identification, multiplexing, and
+ * demultiplexing, for protocol data unit (PDU) transmission and reception by
+ * one or more higher layer entities.
+ *
+ * It is described in 8.13.9 of IEEE Std 802.1Q-2022 that in a Bridge, the LLC
+ * Entity associated with each Bridge Port is modeled as being directly
+ * connected to the attached Local Area Network (LAN).
+ *
+ * On the switch with CPU port architecture, CPU port functions as Management
+ * Port, and the Management Port functionality is provided by software which
+ * functions as an end station. Software is connected to an IEEE 802 LAN that is
+ * wholly contained within the system that incorporates the Bridge. Software
+ * provides access to the LLC Entity associated with each Bridge Port by the
+ * value of the source port field on the special tag on the frame received by
+ * software.
+ *
+ * We call frames that carry control information to determine the active
+ * topology and current extent of each Virtual Local Area Network (VLAN), i.e.,
+ * spanning tree or Shortest Path Bridging (SPB) and Multiple VLAN Registration
+ * Protocol Data Units (MVRPDUs), and frames from other link constrained
+ * protocols, such as Extensible Authentication Protocol over LAN (EAPOL) and
+ * Link Layer Discovery Protocol (LLDP), link-local frames. They are not
+ * forwarded by a Bridge. Permanently configured entries in the filtering
+ * database (FDB) ensure that such frames are discarded by the Forwarding
+ * Process. In 8.6.3 of IEEE Std 802.1Q-2022, this is described in detail:
+ *
+ * Each of the reserved MAC addresses specified in Table 8-1
+ * (01-80-C2-00-00-[00,01,02,03,04,05,06,07,08,09,0A,0B,0C,0D,0E,0F]) shall be
+ * permanently configured in the FDB in C-VLAN components and ERs.
+ *
+ * Each of the reserved MAC addresses specified in Table 8-2
+ * (01-80-C2-00-00-[01,02,03,04,05,06,07,08,09,0A,0E]) shall be permanently
+ * configured in the FDB in S-VLAN components.
+ *
+ * Each of the reserved MAC addresses specified in Table 8-3
+ * (01-80-C2-00-00-[01,02,04,0E]) shall be permanently configured in the FDB in
+ * TPMR components.
+ *
+ * The FDB entries for reserved MAC addresses shall specify filtering for all
+ * Bridge Ports and all VIDs. Management shall not provide the capability to
+ * modify or remove entries for reserved MAC addresses.
+ *
+ * The addresses in Table 8-1, Table 8-2, and Table 8-3 determine the scope of
+ * propagation of PDUs within a Bridged Network, as follows:
+ *
+ *   The Nearest Bridge group address (01-80-C2-00-00-0E) is an address that no
+ *   conformant Two-Port MAC Relay (TPMR) component, Service VLAN (S-VLAN)
+ *   component, Customer VLAN (C-VLAN) component, or MAC Bridge can forward.
+ *   PDUs transmitted using this destination address, or any other addresses
+ *   that appear in Table 8-1, Table 8-2, and Table 8-3
+ *   (01-80-C2-00-00-[00,01,02,03,04,05,06,07,08,09,0A,0B,0C,0D,0E,0F]), can
+ *   therefore travel no further than those stations that can be reached via a
+ *   single individual LAN from the originating station.
+ *
+ *   The Nearest non-TPMR Bridge group address (01-80-C2-00-00-03), is an
+ *   address that no conformant S-VLAN component, C-VLAN component, or MAC
+ *   Bridge can forward; however, this address is relayed by a TPMR component.
+ *   PDUs using this destination address, or any of the other addresses that
+ *   appear in both Table 8-1 and Table 8-2 but not in Table 8-3
+ *   (01-80-C2-00-00-[00,03,05,06,07,08,09,0A,0B,0C,0D,0F]), will be relayed by
+ *   any TPMRs but will propagate no further than the nearest S-VLAN component,
+ *   C-VLAN component, or MAC Bridge.
+ *
+ *   The Nearest Customer Bridge group address (01-80-C2-00-00-00) is an address
+ *   that no conformant C-VLAN component, MAC Bridge can forward; however, it is
+ *   relayed by TPMR components and S-VLAN components. PDUs using this
+ *   destination address, or any of the other addresses that appear in Table 8-1
+ *   but not in either Table 8-2 or Table 8-3 (01-80-C2-00-00-[00,0B,0C,0D,0F]),
+ *   will be relayed by TPMR components and S-VLAN components but will propagate
+ *   no further than the nearest C-VLAN component or MAC Bridge.
+ *
+ * Because the LLC Entity associated with each Bridge Port is provided via CPU
+ * port, we must not filter these frames but forward them to CPU port.
+ *
+ * In a Bridge, the transmission Port is majorly decided by ingress and egress
+ * rules, FDB, and spanning tree Port State functions of the Forwarding Process.
+ * For link-local frames, only CPU port should be designated as destination port
+ * in the FDB, and the other functions of the Forwarding Process must not
+ * interfere with the decision of the transmission Port. We call this process
+ * trapping frames to CPU port.
+ *
+ * Therefore, on the switch with CPU port architecture, link-local frames must
+ * be trapped to CPU port, and certain link-local frames received by a Port of a
+ * Bridge comprising a TPMR component or an S-VLAN component must be excluded
+ * from it.
+ *
+ * A Bridge of the switch with CPU port architecture cannot comprise a Two-Port
+ * MAC Relay (TPMR) component as a TPMR component supports only a subset of the
+ * functionality of a MAC Bridge. A Bridge comprising two Ports (Management Port
+ * doesn't count) of this architecture will either function as a standard MAC
+ * Bridge or a standard VLAN Bridge.
+ *
+ * Therefore, a Bridge of this architecture can only comprise S-VLAN components,
+ * C-VLAN components, or MAC Bridge components. Since there's no TPMR component,
+ * we don't need to relay PDUs using the destination addresses specified on the
+ * Nearest non-TPMR section, and the proportion of the Nearest Customer Bridge
+ * section where they must be relayed by TPMR components.
+ *
+ * One option to trap link-local frames to CPU port is to add static FDB entries
+ * with CPU port designated as destination port. However, because that
+ * Independent VLAN Learning (IVL) is being used on every VID, each entry only
+ * applies to a single VLAN Identifier (VID). For a Bridge comprising a MAC
+ * Bridge component or a C-VLAN component, there would have to be 16 times 4096
+ * entries. This switch intellectual property can only hold a maximum of 2048
+ * entries. Using this option, there also isn't a mechanism to prevent
+ * link-local frames from being discarded when the spanning tree Port State of
+ * the reception Port is discarding.
+ *
+ * The remaining option is to utilise the BPC, RGAC1, RGAC2, RGAC3, and RGAC4
+ * registers. Whilst this applies to every VID, it doesn't contain all of the
+ * reserved MAC addresses without affecting the remaining Standard Group MAC
+ * Addresses. The REV_UN frame tag utilised using the RGAC4 register covers the
+ * remaining 01-80-C2-00-00-[04,05,06,07,08,09,0A,0B,0C,0D,0F] destination
+ * addresses. It also includes the 01-80-C2-00-00-22 to 01-80-C2-00-00-FF
+ * destination addresses which may be relayed by MAC Bridges or VLAN Bridges.
+ * The latter option provides better but not complete conformance.
+ *
+ * This switch intellectual property also does not provide a mechanism to trap
+ * link-local frames with specific destination addresses to CPU port by Bridge,
+ * to conform to the filtering rules for the distinct Bridge components.
+ *
+ * Therefore, regardless of the type of the Bridge component, link-local frames
+ * with these destination addresses will be trapped to CPU port:
+ *
+ * 01-80-C2-00-00-[00,01,02,03,0E]
+ *
+ * In a Bridge comprising a MAC Bridge component or a C-VLAN component:
+ *
+ *   Link-local frames with these destination addresses won't be trapped to CPU
+ *   port which won't conform to IEEE Std 802.1Q-2022:
+ *
+ *   01-80-C2-00-00-[04,05,06,07,08,09,0A,0B,0C,0D,0F]
+ *
+ * In a Bridge comprising an S-VLAN component:
+ *
+ *   Link-local frames with these destination addresses will be trapped to CPU
+ *   port which won't conform to IEEE Std 802.1Q-2022:
+ *
+ *   01-80-C2-00-00-00
+ *
+ *   Link-local frames with these destination addresses won't be trapped to CPU
+ *   port which won't conform to IEEE Std 802.1Q-2022:
+ *
+ *   01-80-C2-00-00-[04,05,06,07,08,09,0A]
+ *
+ * To trap link-local frames to CPU port as conformant as this switch
+ * intellectual property can allow, link-local frames are made to be regarded as
+ * Bridge Protocol Data Units (BPDUs). This is because this switch intellectual
+ * property only lets the frames regarded as BPDUs bypass the spanning tree Port
+ * State function of the Forwarding Process.
+ *
+ * The only remaining interference is the ingress rules. When the reception Port
+ * has no PVID assigned on software, VLAN-untagged frames won't be allowed in.
+ * There doesn't seem to be a mechanism on the switch intellectual property to
+ * have link-local frames bypass this function of the Forwarding Process.
  */
 static void
 mt753x_trap_frames(struct mt7530_priv *priv)
@@ -971,35 +1124,43 @@ mt753x_trap_frames(struct mt7530_priv *priv)
 	/* Trap 802.1X PAE frames and BPDUs to the CPU port(s) and egress them
 	 * VLAN-untagged.
 	 */
-	mt7530_rmw(priv, MT753X_BPC, MT753X_PAE_EG_TAG_MASK |
+	mt7530_rmw(priv, MT753X_BPC,
-		   MT753X_PAE_PORT_FW_MASK | MT753X_BPDU_EG_TAG_MASK |
+		   MT753X_PAE_BPDU_FR | MT753X_PAE_EG_TAG_MASK |
-		   MT753X_BPDU_PORT_FW_MASK,
+			   MT753X_PAE_PORT_FW_MASK | MT753X_BPDU_EG_TAG_MASK |
-		   MT753X_PAE_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+			   MT753X_BPDU_PORT_FW_MASK,
-		   MT753X_PAE_PORT_FW(MT753X_BPDU_CPU_ONLY) |
+		   MT753X_PAE_BPDU_FR |
-		   MT753X_BPDU_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+			   MT753X_PAE_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
-		   MT753X_BPDU_CPU_ONLY);
+			   MT753X_PAE_PORT_FW(MT753X_BPDU_CPU_ONLY) |
+			   MT753X_BPDU_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+			   MT753X_BPDU_CPU_ONLY);
 
 	/* Trap frames with :01 and :02 MAC DAs to the CPU port(s) and egress
 	 * them VLAN-untagged.
 	 */
-	mt7530_rmw(priv, MT753X_RGAC1, MT753X_R02_EG_TAG_MASK |
+	mt7530_rmw(priv, MT753X_RGAC1,
-		   MT753X_R02_PORT_FW_MASK | MT753X_R01_EG_TAG_MASK |
+		   MT753X_R02_BPDU_FR | MT753X_R02_EG_TAG_MASK |
-		   MT753X_R01_PORT_FW_MASK,
+			   MT753X_R02_PORT_FW_MASK | MT753X_R01_BPDU_FR |
-		   MT753X_R02_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+			   MT753X_R01_EG_TAG_MASK | MT753X_R01_PORT_FW_MASK,
-		   MT753X_R02_PORT_FW(MT753X_BPDU_CPU_ONLY) |
+		   MT753X_R02_BPDU_FR |
-		   MT753X_R01_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+			   MT753X_R02_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
-		   MT753X_BPDU_CPU_ONLY);
+			   MT753X_R02_PORT_FW(MT753X_BPDU_CPU_ONLY) |
+			   MT753X_R01_BPDU_FR |
+			   MT753X_R01_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+			   MT753X_BPDU_CPU_ONLY);
 
 	/* Trap frames with :03 and :0E MAC DAs to the CPU port(s) and egress
 	 * them VLAN-untagged.
 	 */
-	mt7530_rmw(priv, MT753X_RGAC2, MT753X_R0E_EG_TAG_MASK |
+	mt7530_rmw(priv, MT753X_RGAC2,
-		   MT753X_R0E_PORT_FW_MASK | MT753X_R03_EG_TAG_MASK |
+		   MT753X_R0E_BPDU_FR | MT753X_R0E_EG_TAG_MASK |
-		   MT753X_R03_PORT_FW_MASK,
+			   MT753X_R0E_PORT_FW_MASK | MT753X_R03_BPDU_FR |
-		   MT753X_R0E_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+			   MT753X_R03_EG_TAG_MASK | MT753X_R03_PORT_FW_MASK,
-		   MT753X_R0E_PORT_FW(MT753X_BPDU_CPU_ONLY) |
+		   MT753X_R0E_BPDU_FR |
-		   MT753X_R03_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+			   MT753X_R0E_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
-		   MT753X_BPDU_CPU_ONLY);
+			   MT753X_R0E_PORT_FW(MT753X_BPDU_CPU_ONLY) |
+			   MT753X_R03_BPDU_FR |
+			   MT753X_R03_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
+			   MT753X_BPDU_CPU_ONLY);
 }
 
 static void
@@ -2505,18 +2666,25 @@ mt7531_setup(struct dsa_switch *ds)
 	mt7530_rmw(priv, MT7531_GPIO_MODE0, MT7531_GPIO0_MASK,
 		   MT7531_GPIO0_INTERRUPT);
 
-	/* Enable PHY core PLL, since phy_device has not yet been created
+	/* Enable Energy-Efficient Ethernet (EEE) and PHY core PLL, since
-	 * provided for phy_[read,write]_mmd_indirect is called, we provide
+	 * phy_device has not yet been created provided for
-	 * our own mt7531_ind_mmd_phy_[read,write] to complete this
+	 * phy_[read,write]_mmd_indirect is called, we provide our own
-	 * function.
+	 * mt7531_ind_mmd_phy_[read,write] to complete this function.
 	 */
 	val = mt7531_ind_c45_phy_read(priv, MT753X_CTRL_PHY_ADDR,
 				      MDIO_MMD_VEND2, CORE_PLL_GROUP4);
-	val |= MT7531_PHY_PLL_BYPASS_MODE;
+	val |= MT7531_RG_SYSPLL_DMY2 | MT7531_PHY_PLL_BYPASS_MODE;
 	val &= ~MT7531_PHY_PLL_OFF;
 	mt7531_ind_c45_phy_write(priv, MT753X_CTRL_PHY_ADDR, MDIO_MMD_VEND2,
 				 CORE_PLL_GROUP4, val);
 
+	/* Disable EEE advertisement on the switch PHYs. */
+	for (i = MT753X_CTRL_PHY_ADDR;
+	     i < MT753X_CTRL_PHY_ADDR + MT7530_NUM_PHYS; i++) {
+		mt7531_ind_c45_phy_write(priv, i, MDIO_MMD_AN, MDIO_AN_EEE_ADV,
+					 0);
+	}
+
 	mt7531_setup_common(ds);
 
 	/* Setup VLAN ID 0 for VLAN-unaware bridges */

drivers/net/dsa/mt7530.h

@@ -65,6 +65,7 @@ enum mt753x_id {
 
 /* Registers for BPDU and PAE frame control*/
 #define MT753X_BPC			0x24
+#define  MT753X_PAE_BPDU_FR		BIT(25)
 #define  MT753X_PAE_EG_TAG_MASK		GENMASK(24, 22)
 #define  MT753X_PAE_EG_TAG(x)		FIELD_PREP(MT753X_PAE_EG_TAG_MASK, x)
 #define  MT753X_PAE_PORT_FW_MASK	GENMASK(18, 16)
@@ -75,20 +76,24 @@ enum mt753x_id {
 
 /* Register for :01 and :02 MAC DA frame control */
 #define MT753X_RGAC1			0x28
+#define  MT753X_R02_BPDU_FR		BIT(25)
 #define  MT753X_R02_EG_TAG_MASK		GENMASK(24, 22)
 #define  MT753X_R02_EG_TAG(x)		FIELD_PREP(MT753X_R02_EG_TAG_MASK, x)
 #define  MT753X_R02_PORT_FW_MASK	GENMASK(18, 16)
 #define  MT753X_R02_PORT_FW(x)		FIELD_PREP(MT753X_R02_PORT_FW_MASK, x)
+#define  MT753X_R01_BPDU_FR		BIT(9)
 #define  MT753X_R01_EG_TAG_MASK		GENMASK(8, 6)
 #define  MT753X_R01_EG_TAG(x)		FIELD_PREP(MT753X_R01_EG_TAG_MASK, x)
 #define  MT753X_R01_PORT_FW_MASK	GENMASK(2, 0)
 
 /* Register for :03 and :0E MAC DA frame control */
 #define MT753X_RGAC2			0x2c
+#define  MT753X_R0E_BPDU_FR		BIT(25)
 #define  MT753X_R0E_EG_TAG_MASK		GENMASK(24, 22)
 #define  MT753X_R0E_EG_TAG(x)		FIELD_PREP(MT753X_R0E_EG_TAG_MASK, x)
 #define  MT753X_R0E_PORT_FW_MASK	GENMASK(18, 16)
 #define  MT753X_R0E_PORT_FW(x)		FIELD_PREP(MT753X_R0E_PORT_FW_MASK, x)
+#define  MT753X_R03_BPDU_FR		BIT(9)
 #define  MT753X_R03_EG_TAG_MASK		GENMASK(8, 6)
 #define  MT753X_R03_EG_TAG(x)		FIELD_PREP(MT753X_R03_EG_TAG_MASK, x)
 #define  MT753X_R03_PORT_FW_MASK	GENMASK(2, 0)
@@ -616,6 +621,7 @@ enum mt7531_clk_skew {
 #define  RG_SYSPLL_DDSFBK_EN		BIT(12)
 #define  RG_SYSPLL_BIAS_EN		BIT(11)
 #define  RG_SYSPLL_BIAS_LPF_EN		BIT(10)
+#define  MT7531_RG_SYSPLL_DMY2		BIT(6)
 #define  MT7531_PHY_PLL_OFF		BIT(5)
 #define  MT7531_PHY_PLL_BYPASS_MODE	BIT(4)
 

drivers/net/ethernet/amazon/ena/ena_com.c

@@ -351,7 +351,7 @@ static int ena_com_init_io_sq(struct ena_com_dev *ena_dev,
 			ENA_COM_BOUNCE_BUFFER_CNTRL_CNT;
 		io_sq->bounce_buf_ctrl.next_to_use = 0;
 
-		size = io_sq->bounce_buf_ctrl.buffer_size *
+		size = (size_t)io_sq->bounce_buf_ctrl.buffer_size *
 			io_sq->bounce_buf_ctrl.buffers_num;
 
 		dev_node = dev_to_node(ena_dev->dmadev);

drivers/net/ethernet/amazon/ena/ena_netdev.c

@@ -718,8 +718,11 @@ void ena_unmap_tx_buff(struct ena_ring *tx_ring,
 static void ena_free_tx_bufs(struct ena_ring *tx_ring)
 {
 	bool print_once = true;
+	bool is_xdp_ring;
 	u32 i;
 
+	is_xdp_ring = ENA_IS_XDP_INDEX(tx_ring->adapter, tx_ring->qid);
+
 	for (i = 0; i < tx_ring->ring_size; i++) {
 		struct ena_tx_buffer *tx_info = &tx_ring->tx_buffer_info[i];
 
@@ -739,10 +742,15 @@ static void ena_free_tx_bufs(struct ena_ring *tx_ring)
 
 		ena_unmap_tx_buff(tx_ring, tx_info);
 
-		dev_kfree_skb_any(tx_info->skb);
+		if (is_xdp_ring)
+			xdp_return_frame(tx_info->xdpf);
+		else
+			dev_kfree_skb_any(tx_info->skb);
 	}
-	netdev_tx_reset_queue(netdev_get_tx_queue(tx_ring->netdev,
+
-						  tx_ring->qid));
+	if (!is_xdp_ring)
+		netdev_tx_reset_queue(netdev_get_tx_queue(tx_ring->netdev,
+							  tx_ring->qid));
 }
 
 static void ena_free_all_tx_bufs(struct ena_adapter *adapter)
@@ -3481,10 +3489,11 @@ static void check_for_missing_completions(struct ena_adapter *adapter)
 {
 	struct ena_ring *tx_ring;
 	struct ena_ring *rx_ring;
-	int i, budget, rc;
+	int qid, budget, rc;
 	int io_queue_count;
 
 	io_queue_count = adapter->xdp_num_queues + adapter->num_io_queues;
+
 	/* Make sure the driver doesn't turn the device in other process */
 	smp_rmb();
 
@@ -3497,27 +3506,29 @@ static void check_for_missing_completions(struct ena_adapter *adapter)
 	if (adapter->missing_tx_completion_to == ENA_HW_HINTS_NO_TIMEOUT)
 		return;
 
-	budget = ENA_MONITORED_TX_QUEUES;
+	budget = min_t(u32, io_queue_count, ENA_MONITORED_TX_QUEUES);
 
-	for (i = adapter->last_monitored_tx_qid; i < io_queue_count; i++) {
+	qid = adapter->last_monitored_tx_qid;
-		tx_ring = &adapter->tx_ring[i];
+
-		rx_ring = &adapter->rx_ring[i];
+	while (budget) {
+		qid = (qid + 1) % io_queue_count;
+
+		tx_ring = &adapter->tx_ring[qid];
+		rx_ring = &adapter->rx_ring[qid];
 
 		rc = check_missing_comp_in_tx_queue(adapter, tx_ring);
 		if (unlikely(rc))
 			return;
 
-		rc =  !ENA_IS_XDP_INDEX(adapter, i) ?
+		rc =  !ENA_IS_XDP_INDEX(adapter, qid) ?
 			check_for_rx_interrupt_queue(adapter, rx_ring) : 0;
 		if (unlikely(rc))
 			return;
 
 		budget--;
-		if (!budget)
-			break;
 	}
 
-	adapter->last_monitored_tx_qid = i % io_queue_count;
+	adapter->last_monitored_tx_qid = qid;
 }
 
 /* trigger napi schedule after 2 consecutive detections */

drivers/net/ethernet/amazon/ena/ena_xdp.c

@@ -89,7 +89,7 @@ int ena_xdp_xmit_frame(struct ena_ring *tx_ring,
 
 	rc = ena_xdp_tx_map_frame(tx_ring, tx_info, xdpf, &ena_tx_ctx);
 	if (unlikely(rc))
-		return rc;
+		goto err;
 
 	ena_tx_ctx.req_id = req_id;
 
@@ -112,7 +112,9 @@ int ena_xdp_xmit_frame(struct ena_ring *tx_ring,
 
 error_unmap_dma:
 	ena_unmap_tx_buff(tx_ring, tx_info);
+err:
 	tx_info->xdpf = NULL;
+
 	return rc;
 }
 

drivers/net/ethernet/amd/pds_core/core.c

@@ -593,6 +593,16 @@ err_out:
 	pdsc_teardown(pdsc, PDSC_TEARDOWN_RECOVERY);
 }
 
+void pdsc_pci_reset_thread(struct work_struct *work)
+{
+	struct pdsc *pdsc = container_of(work, struct pdsc, pci_reset_work);
+	struct pci_dev *pdev = pdsc->pdev;
+
+	pci_dev_get(pdev);
+	pci_reset_function(pdev);
+	pci_dev_put(pdev);
+}
+
 static void pdsc_check_pci_health(struct pdsc *pdsc)
 {
 	u8 fw_status;
@@ -607,7 +617,8 @@ static void pdsc_check_pci_health(struct pdsc *pdsc)
 	if (fw_status != PDS_RC_BAD_PCI)
 		return;
 
-	pci_reset_function(pdsc->pdev);
+	/* prevent deadlock between pdsc_reset_prepare and pdsc_health_thread */
+	queue_work(pdsc->wq, &pdsc->pci_reset_work);
 }
 
 void pdsc_health_thread(struct work_struct *work)

drivers/net/ethernet/amd/pds_core/core.h

@@ -197,6 +197,7 @@ struct pdsc {
 	struct pdsc_qcq notifyqcq;
 	u64 last_eid;
 	struct pdsc_viftype *viftype_status;
+	struct work_struct pci_reset_work;
 };
 
 /** enum pds_core_dbell_bits - bitwise composition of dbell values.
@@ -313,5 +314,6 @@ int pdsc_firmware_update(struct pdsc *pdsc, const struct firmware *fw,
 
 void pdsc_fw_down(struct pdsc *pdsc);
 void pdsc_fw_up(struct pdsc *pdsc);
+void pdsc_pci_reset_thread(struct work_struct *work);
 
 #endif /* _PDSC_H_ */

drivers/net/ethernet/amd/pds_core/dev.c

@@ -229,6 +229,9 @@ int pdsc_devcmd_reset(struct pdsc *pdsc)
 		.reset.opcode = PDS_CORE_CMD_RESET,
 	};
 
+	if (!pdsc_is_fw_running(pdsc))
+		return 0;
+
 	return pdsc_devcmd(pdsc, &cmd, &comp, pdsc->devcmd_timeout);
 }
 

drivers/net/ethernet/amd/pds_core/main.c

@@ -239,6 +239,7 @@ static int pdsc_init_pf(struct pdsc *pdsc)
 	snprintf(wq_name, sizeof(wq_name), "%s.%d", PDS_CORE_DRV_NAME, pdsc->uid);
 	pdsc->wq = create_singlethread_workqueue(wq_name);
 	INIT_WORK(&pdsc->health_work, pdsc_health_thread);
+	INIT_WORK(&pdsc->pci_reset_work, pdsc_pci_reset_thread);
 	timer_setup(&pdsc->wdtimer, pdsc_wdtimer_cb, 0);
 	pdsc->wdtimer_period = PDSC_WATCHDOG_SECS * HZ;
 

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -11758,6 +11758,8 @@ static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
 	/* VF-reps may need to be re-opened after the PF is re-opened */
 	if (BNXT_PF(bp))
 		bnxt_vf_reps_open(bp);
+	if (bp->ptp_cfg)
+		atomic_set(&bp->ptp_cfg->tx_avail, BNXT_MAX_TX_TS);
 	bnxt_ptp_init_rtc(bp, true);
 	bnxt_ptp_cfg_tstamp_filters(bp);
 	bnxt_cfg_usr_fltrs(bp);

drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c

@@ -210,6 +210,9 @@ void bnxt_ulp_start(struct bnxt *bp, int err)
 	if (err)
 		return;
 
+	if (edev->ulp_tbl->msix_requested)
+		bnxt_fill_msix_vecs(bp, edev->msix_entries);
+
 	if (aux_priv) {
 		struct auxiliary_device *adev;
 
@@ -392,12 +395,13 @@ void bnxt_rdma_aux_device_init(struct bnxt *bp)
 	if (!edev)
 		goto aux_dev_uninit;
 
+	aux_priv->edev = edev;
+
 	ulp = kzalloc(sizeof(*ulp), GFP_KERNEL);
 	if (!ulp)
 		goto aux_dev_uninit;
 
 	edev->ulp_tbl = ulp;
-	aux_priv->edev = edev;
 	bp->edev = edev;
 	bnxt_set_edev_info(edev, bp);
 

drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c

@@ -4819,19 +4819,19 @@ static int rvu_nix_block_init(struct rvu *rvu, struct nix_hw *nix_hw)
 		 */
 		rvu_write64(rvu, blkaddr, NIX_AF_CFG,
 			    rvu_read64(rvu, blkaddr, NIX_AF_CFG) | 0x40ULL);
-
-		/* Set chan/link to backpressure TL3 instead of TL2 */
-		rvu_write64(rvu, blkaddr, NIX_AF_PSE_CHANNEL_LEVEL, 0x01);
-
-		/* Disable SQ manager's sticky mode operation (set TM6 = 0)
-		 * This sticky mode is known to cause SQ stalls when multiple
-		 * SQs are mapped to same SMQ and transmitting pkts at a time.
-		 */
-		cfg = rvu_read64(rvu, blkaddr, NIX_AF_SQM_DBG_CTL_STATUS);
-		cfg &= ~BIT_ULL(15);
-		rvu_write64(rvu, blkaddr, NIX_AF_SQM_DBG_CTL_STATUS, cfg);
 	}
 
+	/* Set chan/link to backpressure TL3 instead of TL2 */
+	rvu_write64(rvu, blkaddr, NIX_AF_PSE_CHANNEL_LEVEL, 0x01);
+
+	/* Disable SQ manager's sticky mode operation (set TM6 = 0)
+	 * This sticky mode is known to cause SQ stalls when multiple
+	 * SQs are mapped to same SMQ and transmitting pkts at a time.
+	 */
+	cfg = rvu_read64(rvu, blkaddr, NIX_AF_SQM_DBG_CTL_STATUS);
+	cfg &= ~BIT_ULL(15);
+	rvu_write64(rvu, blkaddr, NIX_AF_SQM_DBG_CTL_STATUS, cfg);
+
 	ltdefs = rvu->kpu.lt_def;
 	/* Calibrate X2P bus to check if CGX/LBK links are fine */
 	err = nix_calibrate_x2p(rvu, blkaddr);

drivers/net/ethernet/marvell/octeontx2/nic/qos.c

@@ -382,6 +382,7 @@ static void otx2_qos_read_txschq_cfg_tl(struct otx2_qos_node *parent,
 		otx2_qos_read_txschq_cfg_tl(node, cfg);
 		cnt = cfg->static_node_pos[node->level];
 		cfg->schq_contig_list[node->level][cnt] = node->schq;
+		cfg->schq_index_used[node->level][cnt] = true;
 		cfg->schq_contig[node->level]++;
 		cfg->static_node_pos[node->level]++;
 		otx2_qos_read_txschq_cfg_schq(node, cfg);

drivers/net/ethernet/mellanox/mlx5/core/en/ptp.h

@@ -95,9 +95,15 @@ static inline void mlx5e_ptp_metadata_fifo_push(struct mlx5e_ptp_metadata_fifo *
 }
 
 static inline u8
+mlx5e_ptp_metadata_fifo_peek(struct mlx5e_ptp_metadata_fifo *fifo)
+{
+	return fifo->data[fifo->mask & fifo->cc];
+}
+
+static inline void
 mlx5e_ptp_metadata_fifo_pop(struct mlx5e_ptp_metadata_fifo *fifo)
 {
-	return fifo->data[fifo->mask & fifo->cc++];
+	fifo->cc++;
 }
 
 static inline void

drivers/net/ethernet/mellanox/mlx5/core/en/qos.c

@@ -83,24 +83,25 @@ int mlx5e_open_qos_sq(struct mlx5e_priv *priv, struct mlx5e_channels *chs,
 
 	txq_ix = mlx5e_qid_from_qos(chs, node_qid);
 
-	WARN_ON(node_qid > priv->htb_max_qos_sqs);
+	WARN_ON(node_qid >= mlx5e_htb_cur_leaf_nodes(priv->htb));
-	if (node_qid == priv->htb_max_qos_sqs) {
+	if (!priv->htb_qos_sq_stats) {
-		struct mlx5e_sq_stats *stats, **stats_list = NULL;
+		struct mlx5e_sq_stats **stats_list;
 
-		if (priv->htb_max_qos_sqs == 0) {
+		stats_list = kvcalloc(mlx5e_qos_max_leaf_nodes(priv->mdev),
-			stats_list = kvcalloc(mlx5e_qos_max_leaf_nodes(priv->mdev),
+				      sizeof(*stats_list), GFP_KERNEL);
-					      sizeof(*stats_list),
+		if (!stats_list)
-					      GFP_KERNEL);
-			if (!stats_list)
-				return -ENOMEM;
-		}
-		stats = kzalloc(sizeof(*stats), GFP_KERNEL);
-		if (!stats) {
-			kvfree(stats_list);
 			return -ENOMEM;
-		}
+
-		if (stats_list)
+		WRITE_ONCE(priv->htb_qos_sq_stats, stats_list);
-			WRITE_ONCE(priv->htb_qos_sq_stats, stats_list);
+	}
+
+	if (!priv->htb_qos_sq_stats[node_qid]) {
+		struct mlx5e_sq_stats *stats;
+
+		stats = kzalloc(sizeof(*stats), GFP_KERNEL);
+		if (!stats)
+			return -ENOMEM;
+
 		WRITE_ONCE(priv->htb_qos_sq_stats[node_qid], stats);
 		/* Order htb_max_qos_sqs increment after writing the array pointer.
 		 * Pairs with smp_load_acquire in en_stats.c.

drivers/net/ethernet/mellanox/mlx5/core/en/rqt.c

@@ -179,6 +179,13 @@ u32 mlx5e_rqt_size(struct mlx5_core_dev *mdev, unsigned int num_channels)
 	return min_t(u32, rqt_size, max_cap_rqt_size);
 }
 
+#define MLX5E_MAX_RQT_SIZE_ALLOWED_WITH_XOR8_HASH 256
+
+unsigned int mlx5e_rqt_max_num_channels_allowed_for_xor8(void)
+{
+	return MLX5E_MAX_RQT_SIZE_ALLOWED_WITH_XOR8_HASH / MLX5E_UNIFORM_SPREAD_RQT_FACTOR;
+}
+
 void mlx5e_rqt_destroy(struct mlx5e_rqt *rqt)
 {
 	mlx5_core_destroy_rqt(rqt->mdev, rqt->rqtn);

drivers/net/ethernet/mellanox/mlx5/core/en/rqt.h

@@ -38,6 +38,7 @@ static inline u32 mlx5e_rqt_get_rqtn(struct mlx5e_rqt *rqt)
 }
 
 u32 mlx5e_rqt_size(struct mlx5_core_dev *mdev, unsigned int num_channels);
+unsigned int mlx5e_rqt_max_num_channels_allowed_for_xor8(void);
 int mlx5e_rqt_redirect_direct(struct mlx5e_rqt *rqt, u32 rqn, u32 *vhca_id);
 int mlx5e_rqt_redirect_indir(struct mlx5e_rqt *rqt, u32 *rqns, u32 *vhca_ids,
 			     unsigned int num_rqns,

drivers/net/ethernet/mellanox/mlx5/core/en/selq.c

@@ -57,6 +57,7 @@ int mlx5e_selq_init(struct mlx5e_selq *selq, struct mutex *state_lock)
 
 void mlx5e_selq_cleanup(struct mlx5e_selq *selq)
 {
+	mutex_lock(selq->state_lock);
 	WARN_ON_ONCE(selq->is_prepared);
 
 	kvfree(selq->standby);
@@ -67,6 +68,7 @@ void mlx5e_selq_cleanup(struct mlx5e_selq *selq)
 
 	kvfree(selq->standby);
 	selq->standby = NULL;
+	mutex_unlock(selq->state_lock);
 }
 
 void mlx5e_selq_prepare_params(struct mlx5e_selq *selq, struct mlx5e_params *params)

drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c

@@ -451,6 +451,34 @@ int mlx5e_ethtool_set_channels(struct mlx5e_priv *priv,
 
 	mutex_lock(&priv->state_lock);
 
+	if (mlx5e_rx_res_get_current_hash(priv->rx_res).hfunc == ETH_RSS_HASH_XOR) {
+		unsigned int xor8_max_channels = mlx5e_rqt_max_num_channels_allowed_for_xor8();
+
+		if (count > xor8_max_channels) {
+			err = -EINVAL;
+			netdev_err(priv->netdev, "%s: Requested number of channels (%d) exceeds the maximum allowed by the XOR8 RSS hfunc (%d)\n",
+				   __func__, count, xor8_max_channels);
+			goto out;
+		}
+	}
+
+	/* If RXFH is configured, changing the channels number is allowed only if
+	 * it does not require resizing the RSS table. This is because the previous
+	 * configuration may no longer be compatible with the new RSS table.
+	 */
+	if (netif_is_rxfh_configured(priv->netdev)) {
+		int cur_rqt_size = mlx5e_rqt_size(priv->mdev, cur_params->num_channels);
+		int new_rqt_size = mlx5e_rqt_size(priv->mdev, count);
+
+		if (new_rqt_size != cur_rqt_size) {
+			err = -EINVAL;
+			netdev_err(priv->netdev,
+				   "%s: RXFH is configured, block changing channels number that affects RSS table size (new: %d, current: %d)\n",
+				   __func__, new_rqt_size, cur_rqt_size);
+			goto out;
+		}
+	}
+
 	/* Don't allow changing the number of channels if HTB offload is active,
 	 * because the numeration of the QoS SQs will change, while per-queue
 	 * qdiscs are attached.
@@ -1281,17 +1309,30 @@ int mlx5e_set_rxfh(struct net_device *dev, struct ethtool_rxfh_param *rxfh,
 	struct mlx5e_priv *priv = netdev_priv(dev);
 	u32 *rss_context = &rxfh->rss_context;
 	u8 hfunc = rxfh->hfunc;
+	unsigned int count;
 	int err;
 
 	mutex_lock(&priv->state_lock);
+
+	count = priv->channels.params.num_channels;
+
+	if (hfunc == ETH_RSS_HASH_XOR) {
+		unsigned int xor8_max_channels = mlx5e_rqt_max_num_channels_allowed_for_xor8();
+
+		if (count > xor8_max_channels) {
+			err = -EINVAL;
+			netdev_err(priv->netdev, "%s: Cannot set RSS hash function to XOR, current number of channels (%d) exceeds the maximum allowed for XOR8 RSS hfunc (%d)\n",
+				   __func__, count, xor8_max_channels);
+			goto unlock;
+		}
+	}
+
 	if (*rss_context && rxfh->rss_delete) {
 		err = mlx5e_rx_res_rss_destroy(priv->rx_res, *rss_context);
 		goto unlock;
 	}
 
 	if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) {
-		unsigned int count = priv->channels.params.num_channels;
-
 		err = mlx5e_rx_res_rss_init(priv->rx_res, rss_context, count);
 		if (err)
 			goto unlock;

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -5726,9 +5726,7 @@ void mlx5e_priv_cleanup(struct mlx5e_priv *priv)
 	kfree(priv->tx_rates);
 	kfree(priv->txq2sq);
 	destroy_workqueue(priv->wq);
-	mutex_lock(&priv->state_lock);
 	mlx5e_selq_cleanup(&priv->selq);
-	mutex_unlock(&priv->state_lock);
 	free_cpumask_var(priv->scratchpad.cpumask);
 
 	for (i = 0; i < priv->htb_max_qos_sqs; i++)

drivers/net/ethernet/mellanox/mlx5/core/en_tx.c

@@ -398,6 +398,8 @@ mlx5e_txwqe_complete(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 		     (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP))) {
 		u8 metadata_index = be32_to_cpu(eseg->flow_table_metadata);
 
+		mlx5e_ptp_metadata_fifo_pop(&sq->ptpsq->metadata_freelist);
+
 		mlx5e_skb_cb_hwtstamp_init(skb);
 		mlx5e_ptp_metadata_map_put(&sq->ptpsq->metadata_map, skb,
 					   metadata_index);
@@ -496,9 +498,6 @@ mlx5e_sq_xmit_wqe(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 
 err_drop:
 	stats->dropped++;
-	if (unlikely(sq->ptpsq && (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)))
-		mlx5e_ptp_metadata_fifo_push(&sq->ptpsq->metadata_freelist,
-					     be32_to_cpu(eseg->flow_table_metadata));
 	dev_kfree_skb_any(skb);
 	mlx5e_tx_flush(sq);
 }
@@ -657,7 +656,7 @@ static void mlx5e_cqe_ts_id_eseg(struct mlx5e_ptpsq *ptpsq, struct sk_buff *skb,
 {
 	if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP))
 		eseg->flow_table_metadata =
-			cpu_to_be32(mlx5e_ptp_metadata_fifo_pop(&ptpsq->metadata_freelist));
+			cpu_to_be32(mlx5e_ptp_metadata_fifo_peek(&ptpsq->metadata_freelist));
 }
 
 static void mlx5e_txwqe_build_eseg(struct mlx5e_priv *priv, struct mlx5e_txqsq *sq,

drivers/net/ethernet/mellanox/mlx5/core/eswitch.c

@@ -1868,6 +1868,7 @@ int mlx5_eswitch_init(struct mlx5_core_dev *dev)
 	if (err)
 		goto abort;
 
+	dev->priv.eswitch = esw;
 	err = esw_offloads_init(esw);
 	if (err)
 		goto reps_err;
@@ -1892,11 +1893,6 @@ int mlx5_eswitch_init(struct mlx5_core_dev *dev)
 		esw->offloads.encap = DEVLINK_ESWITCH_ENCAP_MODE_BASIC;
 	else
 		esw->offloads.encap = DEVLINK_ESWITCH_ENCAP_MODE_NONE;
-	if (MLX5_ESWITCH_MANAGER(dev) &&
-	    mlx5_esw_vport_match_metadata_supported(esw))
-		esw->flags |= MLX5_ESWITCH_VPORT_MATCH_METADATA;
-
-	dev->priv.eswitch = esw;
 	BLOCKING_INIT_NOTIFIER_HEAD(&esw->n_head);
 
 	esw_info(dev,
@@ -1908,6 +1904,7 @@ int mlx5_eswitch_init(struct mlx5_core_dev *dev)
 
 reps_err:
 	mlx5_esw_vports_cleanup(esw);
+	dev->priv.eswitch = NULL;
 abort:
 	if (esw->work_queue)
 		destroy_workqueue(esw->work_queue);
@@ -1926,7 +1923,6 @@ void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw)
 
 	esw_info(esw->dev, "cleanup\n");
 
-	esw->dev->priv.eswitch = NULL;
 	destroy_workqueue(esw->work_queue);
 	WARN_ON(refcount_read(&esw->qos.refcnt));
 	mutex_destroy(&esw->state_lock);
@@ -1937,6 +1933,7 @@ void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw)
 	mutex_destroy(&esw->offloads.encap_tbl_lock);
 	mutex_destroy(&esw->offloads.decap_tbl_lock);
 	esw_offloads_cleanup(esw);
+	esw->dev->priv.eswitch = NULL;
 	mlx5_esw_vports_cleanup(esw);
 	debugfs_remove_recursive(esw->debugfs_root);
 	devl_params_unregister(priv_to_devlink(esw->dev), mlx5_eswitch_params,

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

@@ -43,6 +43,7 @@
 #include "rdma.h"
 #include "en.h"
 #include "fs_core.h"
+#include "lib/mlx5.h"
 #include "lib/devcom.h"
 #include "lib/eq.h"
 #include "lib/fs_chains.h"
@@ -2476,6 +2477,10 @@ int esw_offloads_init(struct mlx5_eswitch *esw)
 	if (err)
 		return err;
 
+	if (MLX5_ESWITCH_MANAGER(esw->dev) &&
+	    mlx5_esw_vport_match_metadata_supported(esw))
+		esw->flags |= MLX5_ESWITCH_VPORT_MATCH_METADATA;
+
 	err = devl_params_register(priv_to_devlink(esw->dev),
 				   esw_devlink_params,
 				   ARRAY_SIZE(esw_devlink_params));
@@ -3707,6 +3712,12 @@ int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
 	if (esw_mode_from_devlink(mode, &mlx5_mode))
 		return -EINVAL;
 
+	if (mode == DEVLINK_ESWITCH_MODE_SWITCHDEV && mlx5_get_sd(esw->dev)) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Can't change E-Switch mode to switchdev when multi-PF netdev (Socket Direct) is configured.");
+		return -EPERM;
+	}
+
 	mlx5_lag_disable_change(esw->dev);
 	err = mlx5_esw_try_lock(esw);
 	if (err < 0) {

drivers/net/ethernet/mellanox/mlx5/core/fs_core.c

@@ -1664,6 +1664,16 @@ static int create_auto_flow_group(struct mlx5_flow_table *ft,
 	return err;
 }
 
+static bool mlx5_pkt_reformat_cmp(struct mlx5_pkt_reformat *p1,
+				  struct mlx5_pkt_reformat *p2)
+{
+	return p1->owner == p2->owner &&
+		(p1->owner == MLX5_FLOW_RESOURCE_OWNER_FW ?
+		 p1->id == p2->id :
+		 mlx5_fs_dr_action_get_pkt_reformat_id(p1) ==
+		 mlx5_fs_dr_action_get_pkt_reformat_id(p2));
+}
+
 static bool mlx5_flow_dests_cmp(struct mlx5_flow_destination *d1,
 				struct mlx5_flow_destination *d2)
 {
@@ -1675,8 +1685,8 @@ static bool mlx5_flow_dests_cmp(struct mlx5_flow_destination *d1,
 		     ((d1->vport.flags & MLX5_FLOW_DEST_VPORT_VHCA_ID) ?
 		      (d1->vport.vhca_id == d2->vport.vhca_id) : true) &&
 		     ((d1->vport.flags & MLX5_FLOW_DEST_VPORT_REFORMAT_ID) ?
-		      (d1->vport.pkt_reformat->id ==
+		      mlx5_pkt_reformat_cmp(d1->vport.pkt_reformat,
-		       d2->vport.pkt_reformat->id) : true)) ||
+					    d2->vport.pkt_reformat) : true)) ||
 		    (d1->type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE &&
 		     d1->ft == d2->ft) ||
 		    (d1->type == MLX5_FLOW_DESTINATION_TYPE_TIR &&
@@ -1808,8 +1818,9 @@ static struct mlx5_flow_handle *add_rule_fg(struct mlx5_flow_group *fg,
 	}
 	trace_mlx5_fs_set_fte(fte, false);
 
+	/* Link newly added rules into the tree. */
 	for (i = 0; i < handle->num_rules; i++) {
-		if (refcount_read(&handle->rule[i]->node.refcount) == 1) {
+		if (!handle->rule[i]->node.parent) {
 			tree_add_node(&handle->rule[i]->node, &fte->node);
 			trace_mlx5_fs_add_rule(handle->rule[i]);
 		}

drivers/net/ethernet/mellanox/mlx5/core/main.c

@@ -1480,6 +1480,14 @@ int mlx5_init_one_devl_locked(struct mlx5_core_dev *dev)
 	if (err)
 		goto err_register;
 
+	err = mlx5_crdump_enable(dev);
+	if (err)
+		mlx5_core_err(dev, "mlx5_crdump_enable failed with error code %d\n", err);
+
+	err = mlx5_hwmon_dev_register(dev);
+	if (err)
+		mlx5_core_err(dev, "mlx5_hwmon_dev_register failed with error code %d\n", err);
+
 	mutex_unlock(&dev->intf_state_mutex);
 	return 0;
 
@@ -1505,7 +1513,10 @@ int mlx5_init_one(struct mlx5_core_dev *dev)
 	int err;
 
 	devl_lock(devlink);
+	devl_register(devlink);
 	err = mlx5_init_one_devl_locked(dev);
+	if (err)
+		devl_unregister(devlink);
 	devl_unlock(devlink);
 	return err;
 }
@@ -1517,6 +1528,8 @@ void mlx5_uninit_one(struct mlx5_core_dev *dev)
 	devl_lock(devlink);
 	mutex_lock(&dev->intf_state_mutex);
 
+	mlx5_hwmon_dev_unregister(dev);
+	mlx5_crdump_disable(dev);
 	mlx5_unregister_device(dev);
 
 	if (!test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) {
@@ -1534,6 +1547,7 @@ void mlx5_uninit_one(struct mlx5_core_dev *dev)
 	mlx5_function_teardown(dev, true);
 out:
 	mutex_unlock(&dev->intf_state_mutex);
+	devl_unregister(devlink);
 	devl_unlock(devlink);
 }
 
@@ -1680,16 +1694,20 @@ int mlx5_init_one_light(struct mlx5_core_dev *dev)
 	}
 
 	devl_lock(devlink);
+	devl_register(devlink);
+
 	err = mlx5_devlink_params_register(priv_to_devlink(dev));
-	devl_unlock(devlink);
 	if (err) {
 		mlx5_core_warn(dev, "mlx5_devlink_param_reg err = %d\n", err);
 		goto query_hca_caps_err;
 	}
 
+	devl_unlock(devlink);
 	return 0;
 
 query_hca_caps_err:
+	devl_unregister(devlink);
+	devl_unlock(devlink);
 	mlx5_function_disable(dev, true);
 out:
 	dev->state = MLX5_DEVICE_STATE_INTERNAL_ERROR;
@@ -1702,6 +1720,7 @@ void mlx5_uninit_one_light(struct mlx5_core_dev *dev)
 
 	devl_lock(devlink);
 	mlx5_devlink_params_unregister(priv_to_devlink(dev));
+	devl_unregister(devlink);
 	devl_unlock(devlink);
 	if (dev->state != MLX5_DEVICE_STATE_UP)
 		return;
@@ -1943,16 +1962,7 @@ static int probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto err_init_one;
 	}
 
-	err = mlx5_crdump_enable(dev);
-	if (err)
-		dev_err(&pdev->dev, "mlx5_crdump_enable failed with error code %d\n", err);
-
-	err = mlx5_hwmon_dev_register(dev);
-	if (err)
-		mlx5_core_err(dev, "mlx5_hwmon_dev_register failed with error code %d\n", err);
-
 	pci_save_state(pdev);
-	devlink_register(devlink);
 	return 0;
 
 err_init_one:
@@ -1973,16 +1983,9 @@ static void remove_one(struct pci_dev *pdev)
 	struct devlink *devlink = priv_to_devlink(dev);
 
 	set_bit(MLX5_BREAK_FW_WAIT, &dev->intf_state);
-	/* mlx5_drain_fw_reset() and mlx5_drain_health_wq() are using
-	 * devlink notify APIs.
-	 * Hence, we must drain them before unregistering the devlink.
-	 */
 	mlx5_drain_fw_reset(dev);
 	mlx5_drain_health_wq(dev);
-	devlink_unregister(devlink);
 	mlx5_sriov_disable(pdev, false);
-	mlx5_hwmon_dev_unregister(dev);
-	mlx5_crdump_disable(dev);
 	mlx5_uninit_one(dev);
 	mlx5_pci_close(dev);
 	mlx5_mdev_uninit(dev);

drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c

@@ -19,6 +19,7 @@
 #define MLX5_IRQ_CTRL_SF_MAX 8
 /* min num of vectors for SFs to be enabled */
 #define MLX5_IRQ_VEC_COMP_BASE_SF 2
+#define MLX5_IRQ_VEC_COMP_BASE 1
 
 #define MLX5_EQ_SHARE_IRQ_MAX_COMP (8)
 #define MLX5_EQ_SHARE_IRQ_MAX_CTRL (UINT_MAX)
@@ -246,6 +247,7 @@ static void irq_set_name(struct mlx5_irq_pool *pool, char *name, int vecidx)
 		return;
 	}
 
+	vecidx -= MLX5_IRQ_VEC_COMP_BASE;
 	snprintf(name, MLX5_MAX_IRQ_NAME, "mlx5_comp%d", vecidx);
 }
 
@@ -585,7 +587,7 @@ struct mlx5_irq *mlx5_irq_request_vector(struct mlx5_core_dev *dev, u16 cpu,
 	struct mlx5_irq_table *table = mlx5_irq_table_get(dev);
 	struct mlx5_irq_pool *pool = table->pcif_pool;
 	struct irq_affinity_desc af_desc;
-	int offset = 1;
+	int offset = MLX5_IRQ_VEC_COMP_BASE;
 
 	if (!pool->xa_num_irqs.max)
 		offset = 0;

drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c

@@ -101,7 +101,6 @@ static void mlx5_sf_dev_remove(struct auxiliary_device *adev)
 	devlink = priv_to_devlink(mdev);
 	set_bit(MLX5_BREAK_FW_WAIT, &mdev->intf_state);
 	mlx5_drain_health_wq(mdev);
-	devlink_unregister(devlink);
 	if (mlx5_dev_is_lightweight(mdev))
 		mlx5_uninit_one_light(mdev);
 	else

drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.c

@@ -205,12 +205,11 @@ dr_dump_hex_print(char hex[DR_HEX_SIZE], char *src, u32 size)
 }
 
 static int
-dr_dump_rule_action_mem(struct seq_file *file, const u64 rule_id,
+dr_dump_rule_action_mem(struct seq_file *file, char *buff, const u64 rule_id,
 			struct mlx5dr_rule_action_member *action_mem)
 {
 	struct mlx5dr_action *action = action_mem->action;
 	const u64 action_id = DR_DBG_PTR_TO_ID(action);
-	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	u64 hit_tbl_ptr, miss_tbl_ptr;
 	u32 hit_tbl_id, miss_tbl_id;
 	int ret;
@@ -488,10 +487,9 @@ dr_dump_rule_action_mem(struct seq_file *file, const u64 rule_id,
 }
 
 static int
-dr_dump_rule_mem(struct seq_file *file, struct mlx5dr_ste *ste,
+dr_dump_rule_mem(struct seq_file *file, char *buff, struct mlx5dr_ste *ste,
 		 bool is_rx, const u64 rule_id, u8 format_ver)
 {
-	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	char hw_ste_dump[DR_HEX_SIZE];
 	u32 mem_rec_type;
 	int ret;
@@ -522,7 +520,8 @@ dr_dump_rule_mem(struct seq_file *file, struct mlx5dr_ste *ste,
 }
 
 static int
-dr_dump_rule_rx_tx(struct seq_file *file, struct mlx5dr_rule_rx_tx *rule_rx_tx,
+dr_dump_rule_rx_tx(struct seq_file *file, char *buff,
+		   struct mlx5dr_rule_rx_tx *rule_rx_tx,
 		   bool is_rx, const u64 rule_id, u8 format_ver)
 {
 	struct mlx5dr_ste *ste_arr[DR_RULE_MAX_STES + DR_ACTION_MAX_STES];
@@ -533,7 +532,7 @@ dr_dump_rule_rx_tx(struct seq_file *file, struct mlx5dr_rule_rx_tx *rule_rx_tx,
 		return 0;
 
 	while (i--) {
-		ret = dr_dump_rule_mem(file, ste_arr[i], is_rx, rule_id,
+		ret = dr_dump_rule_mem(file, buff, ste_arr[i], is_rx, rule_id,
 				       format_ver);
 		if (ret < 0)
 			return ret;
@@ -542,7 +541,8 @@ dr_dump_rule_rx_tx(struct seq_file *file, struct mlx5dr_rule_rx_tx *rule_rx_tx,
 	return 0;
 }
 
-static int dr_dump_rule(struct seq_file *file, struct mlx5dr_rule *rule)
+static noinline_for_stack int
+dr_dump_rule(struct seq_file *file, struct mlx5dr_rule *rule)
 {
 	struct mlx5dr_rule_action_member *action_mem;
 	const u64 rule_id = DR_DBG_PTR_TO_ID(rule);
@@ -565,19 +565,19 @@ static int dr_dump_rule(struct seq_file *file, struct mlx5dr_rule *rule)
 		return ret;
 
 	if (rx->nic_matcher) {
-		ret = dr_dump_rule_rx_tx(file, rx, true, rule_id, format_ver);
+		ret = dr_dump_rule_rx_tx(file, buff, rx, true, rule_id, format_ver);
 		if (ret < 0)
 			return ret;
 	}
 
 	if (tx->nic_matcher) {
-		ret = dr_dump_rule_rx_tx(file, tx, false, rule_id, format_ver);
+		ret = dr_dump_rule_rx_tx(file, buff, tx, false, rule_id, format_ver);
 		if (ret < 0)
 			return ret;
 	}
 
 	list_for_each_entry(action_mem, &rule->rule_actions_list, list) {
-		ret = dr_dump_rule_action_mem(file, rule_id, action_mem);
+		ret = dr_dump_rule_action_mem(file, buff, rule_id, action_mem);
 		if (ret < 0)
 			return ret;
 	}
@@ -586,10 +586,10 @@ static int dr_dump_rule(struct seq_file *file, struct mlx5dr_rule *rule)
 }
 
 static int
-dr_dump_matcher_mask(struct seq_file *file, struct mlx5dr_match_param *mask,
+dr_dump_matcher_mask(struct seq_file *file, char *buff,
+		     struct mlx5dr_match_param *mask,
 		     u8 criteria, const u64 matcher_id)
 {
-	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	char dump[DR_HEX_SIZE];
 	int ret;
 
@@ -681,10 +681,10 @@ dr_dump_matcher_mask(struct seq_file *file, struct mlx5dr_match_param *mask,
 }
 
 static int
-dr_dump_matcher_builder(struct seq_file *file, struct mlx5dr_ste_build *builder,
+dr_dump_matcher_builder(struct seq_file *file, char *buff,
+			struct mlx5dr_ste_build *builder,
 			u32 index, bool is_rx, const u64 matcher_id)
 {
-	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	int ret;
 
 	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
@@ -702,11 +702,10 @@ dr_dump_matcher_builder(struct seq_file *file, struct mlx5dr_ste_build *builder,
 }
 
 static int
-dr_dump_matcher_rx_tx(struct seq_file *file, bool is_rx,
+dr_dump_matcher_rx_tx(struct seq_file *file, char *buff, bool is_rx,
 		      struct mlx5dr_matcher_rx_tx *matcher_rx_tx,
 		      const u64 matcher_id)
 {
-	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	enum dr_dump_rec_type rec_type;
 	u64 s_icm_addr, e_icm_addr;
 	int i, ret;
@@ -731,7 +730,7 @@ dr_dump_matcher_rx_tx(struct seq_file *file, bool is_rx,
 		return ret;
 
 	for (i = 0; i < matcher_rx_tx->num_of_builders; i++) {
-		ret = dr_dump_matcher_builder(file,
+		ret = dr_dump_matcher_builder(file, buff,
 					      &matcher_rx_tx->ste_builder[i],
 					      i, is_rx, matcher_id);
 		if (ret < 0)
@@ -741,7 +740,7 @@ dr_dump_matcher_rx_tx(struct seq_file *file, bool is_rx,
 	return 0;
 }
 
-static int
+static noinline_for_stack int
 dr_dump_matcher(struct seq_file *file, struct mlx5dr_matcher *matcher)
 {
 	struct mlx5dr_matcher_rx_tx *rx = &matcher->rx;
@@ -763,19 +762,19 @@ dr_dump_matcher(struct seq_file *file, struct mlx5dr_matcher *matcher)
 	if (ret)
 		return ret;
 
-	ret = dr_dump_matcher_mask(file, &matcher->mask,
+	ret = dr_dump_matcher_mask(file, buff, &matcher->mask,
 				   matcher->match_criteria, matcher_id);
 	if (ret < 0)
 		return ret;
 
 	if (rx->nic_tbl) {
-		ret = dr_dump_matcher_rx_tx(file, true, rx, matcher_id);
+		ret = dr_dump_matcher_rx_tx(file, buff, true, rx, matcher_id);
 		if (ret < 0)
 			return ret;
 	}
 
 	if (tx->nic_tbl) {
-		ret = dr_dump_matcher_rx_tx(file, false, tx, matcher_id);
+		ret = dr_dump_matcher_rx_tx(file, buff, false, tx, matcher_id);
 		if (ret < 0)
 			return ret;
 	}
@@ -803,11 +802,10 @@ dr_dump_matcher_all(struct seq_file *file, struct mlx5dr_matcher *matcher)
 }
 
 static int
-dr_dump_table_rx_tx(struct seq_file *file, bool is_rx,
+dr_dump_table_rx_tx(struct seq_file *file, char *buff, bool is_rx,
 		    struct mlx5dr_table_rx_tx *table_rx_tx,
 		    const u64 table_id)
 {
-	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	enum dr_dump_rec_type rec_type;
 	u64 s_icm_addr;
 	int ret;
@@ -829,7 +827,8 @@ dr_dump_table_rx_tx(struct seq_file *file, bool is_rx,
 	return 0;
 }
 
-static int dr_dump_table(struct seq_file *file, struct mlx5dr_table *table)
+static noinline_for_stack int
+dr_dump_table(struct seq_file *file, struct mlx5dr_table *table)
 {
 	struct mlx5dr_table_rx_tx *rx = &table->rx;
 	struct mlx5dr_table_rx_tx *tx = &table->tx;
@@ -848,14 +847,14 @@ static int dr_dump_table(struct seq_file *file, struct mlx5dr_table *table)
 		return ret;
 
 	if (rx->nic_dmn) {
-		ret = dr_dump_table_rx_tx(file, true, rx,
+		ret = dr_dump_table_rx_tx(file, buff, true, rx,
 					  DR_DBG_PTR_TO_ID(table));
 		if (ret < 0)
 			return ret;
 	}
 
 	if (tx->nic_dmn) {
-		ret = dr_dump_table_rx_tx(file, false, tx,
+		ret = dr_dump_table_rx_tx(file, buff, false, tx,
 					  DR_DBG_PTR_TO_ID(table));
 		if (ret < 0)
 			return ret;
@@ -881,10 +880,10 @@ static int dr_dump_table_all(struct seq_file *file, struct mlx5dr_table *tbl)
 }
 
 static int
-dr_dump_send_ring(struct seq_file *file, struct mlx5dr_send_ring *ring,
+dr_dump_send_ring(struct seq_file *file, char *buff,
+		  struct mlx5dr_send_ring *ring,
 		  const u64 domain_id)
 {
-	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	int ret;
 
 	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
@@ -902,13 +901,13 @@ dr_dump_send_ring(struct seq_file *file, struct mlx5dr_send_ring *ring,
 	return 0;
 }
 
-static noinline_for_stack int
+static int
 dr_dump_domain_info_flex_parser(struct seq_file *file,
+				char *buff,
 				const char *flex_parser_name,
 				const u8 flex_parser_value,
 				const u64 domain_id)
 {
-	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	int ret;
 
 	ret = snprintf(buff, MLX5DR_DEBUG_DUMP_BUFF_LENGTH,
@@ -925,11 +924,11 @@ dr_dump_domain_info_flex_parser(struct seq_file *file,
 	return 0;
 }
 
-static noinline_for_stack int
+static int
-dr_dump_domain_info_caps(struct seq_file *file, struct mlx5dr_cmd_caps *caps,
+dr_dump_domain_info_caps(struct seq_file *file, char *buff,
+			 struct mlx5dr_cmd_caps *caps,
 			 const u64 domain_id)
 {
-	char buff[MLX5DR_DEBUG_DUMP_BUFF_LENGTH];
 	struct mlx5dr_cmd_vport_cap *vport_caps;
 	unsigned long i, vports_num;
 	int ret;
@@ -969,34 +968,35 @@ dr_dump_domain_info_caps(struct seq_file *file, struct mlx5dr_cmd_caps *caps,
 }
 
 static int
-dr_dump_domain_info(struct seq_file *file, struct mlx5dr_domain_info *info,
+dr_dump_domain_info(struct seq_file *file, char *buff,
+		    struct mlx5dr_domain_info *info,
 		    const u64 domain_id)
 {
 	int ret;
 
-	ret = dr_dump_domain_info_caps(file, &info->caps, domain_id);
+	ret = dr_dump_domain_info_caps(file, buff, &info->caps, domain_id);
 	if (ret < 0)
 		return ret;
 
-	ret = dr_dump_domain_info_flex_parser(file, "icmp_dw0",
+	ret = dr_dump_domain_info_flex_parser(file, buff, "icmp_dw0",
 					      info->caps.flex_parser_id_icmp_dw0,
 					      domain_id);
 	if (ret < 0)
 		return ret;
 
-	ret = dr_dump_domain_info_flex_parser(file, "icmp_dw1",
+	ret = dr_dump_domain_info_flex_parser(file, buff, "icmp_dw1",
 					      info->caps.flex_parser_id_icmp_dw1,
 					      domain_id);
 	if (ret < 0)
 		return ret;
 
-	ret = dr_dump_domain_info_flex_parser(file, "icmpv6_dw0",
+	ret = dr_dump_domain_info_flex_parser(file, buff, "icmpv6_dw0",
 					      info->caps.flex_parser_id_icmpv6_dw0,
 					      domain_id);
 	if (ret < 0)
 		return ret;
 
-	ret = dr_dump_domain_info_flex_parser(file, "icmpv6_dw1",
+	ret = dr_dump_domain_info_flex_parser(file, buff, "icmpv6_dw1",
 					      info->caps.flex_parser_id_icmpv6_dw1,
 					      domain_id);
 	if (ret < 0)
@@ -1032,12 +1032,12 @@ dr_dump_domain(struct seq_file *file, struct mlx5dr_domain *dmn)
 	if (ret)
 		return ret;
 
-	ret = dr_dump_domain_info(file, &dmn->info, domain_id);
+	ret = dr_dump_domain_info(file, buff, &dmn->info, domain_id);
 	if (ret < 0)
 		return ret;
 
 	if (dmn->info.supp_sw_steering) {
-		ret = dr_dump_send_ring(file, dmn->send_ring, domain_id);
+		ret = dr_dump_send_ring(file, buff, dmn->send_ring, domain_id);
 		if (ret < 0)
 			return ret;
 	}

drivers/net/ethernet/micrel/ks8851.h

@@ -368,7 +368,6 @@ union ks8851_tx_hdr {
  * @rdfifo: FIFO read callback
  * @wrfifo: FIFO write callback
  * @start_xmit: start_xmit() implementation callback
- * @rx_skb: rx_skb() implementation callback
  * @flush_tx_work: flush_tx_work() implementation callback
  *
  * The @statelock is used to protect information in the structure which may
@@ -423,8 +422,6 @@ struct ks8851_net {
 					  struct sk_buff *txp, bool irq);
 	netdev_tx_t		(*start_xmit)(struct sk_buff *skb,
 					      struct net_device *dev);
-	void			(*rx_skb)(struct ks8851_net *ks,
-					  struct sk_buff *skb);
 	void			(*flush_tx_work)(struct ks8851_net *ks);
 };
 

drivers/net/ethernet/micrel/ks8851_common.c

@@ -231,16 +231,6 @@ static void ks8851_dbg_dumpkkt(struct ks8851_net *ks, u8 *rxpkt)
 		   rxpkt[12], rxpkt[13], rxpkt[14], rxpkt[15]);
 }
 
-/**
- * ks8851_rx_skb - receive skbuff
- * @ks: The device state.
- * @skb: The skbuff
- */
-static void ks8851_rx_skb(struct ks8851_net *ks, struct sk_buff *skb)
-{
-	ks->rx_skb(ks, skb);
-}
-
 /**
  * ks8851_rx_pkts - receive packets from the host
  * @ks: The device information.
@@ -309,7 +299,7 @@ static void ks8851_rx_pkts(struct ks8851_net *ks)
 					ks8851_dbg_dumpkkt(ks, rxpkt);
 
 				skb->protocol = eth_type_trans(skb, ks->netdev);
-				ks8851_rx_skb(ks, skb);
+				__netif_rx(skb);
 
 				ks->netdev->stats.rx_packets++;
 				ks->netdev->stats.rx_bytes += rxlen;
@@ -340,6 +330,8 @@ static irqreturn_t ks8851_irq(int irq, void *_ks)
 	unsigned long flags;
 	unsigned int status;
 
+	local_bh_disable();
+
 	ks8851_lock(ks, &flags);
 
 	status = ks8851_rdreg16(ks, KS_ISR);
@@ -416,6 +408,8 @@ static irqreturn_t ks8851_irq(int irq, void *_ks)
 	if (status & IRQ_LCI)
 		mii_check_link(&ks->mii);
 
+	local_bh_enable();
+
 	return IRQ_HANDLED;
 }
 

drivers/net/ethernet/micrel/ks8851_par.c

@@ -210,16 +210,6 @@ static void ks8851_wrfifo_par(struct ks8851_net *ks, struct sk_buff *txp,
 	iowrite16_rep(ksp->hw_addr, txp->data, len / 2);
 }
 
-/**
- * ks8851_rx_skb_par - receive skbuff
- * @ks: The device state.
- * @skb: The skbuff
- */
-static void ks8851_rx_skb_par(struct ks8851_net *ks, struct sk_buff *skb)
-{
-	netif_rx(skb);
-}
-
 static unsigned int ks8851_rdreg16_par_txqcr(struct ks8851_net *ks)
 {
 	return ks8851_rdreg16_par(ks, KS_TXQCR);
@@ -298,7 +288,6 @@ static int ks8851_probe_par(struct platform_device *pdev)
 	ks->rdfifo = ks8851_rdfifo_par;
 	ks->wrfifo = ks8851_wrfifo_par;
 	ks->start_xmit = ks8851_start_xmit_par;
-	ks->rx_skb = ks8851_rx_skb_par;
 
 #define STD_IRQ (IRQ_LCI |	/* Link Change */	\
 		 IRQ_RXI |	/* RX done */		\

drivers/net/ethernet/micrel/ks8851_spi.c

@@ -298,16 +298,6 @@ static unsigned int calc_txlen(unsigned int len)
 	return ALIGN(len + 4, 4);
 }
 
-/**
- * ks8851_rx_skb_spi - receive skbuff
- * @ks: The device state
- * @skb: The skbuff
- */
-static void ks8851_rx_skb_spi(struct ks8851_net *ks, struct sk_buff *skb)
-{
-	netif_rx(skb);
-}
-
 /**
  * ks8851_tx_work - process tx packet(s)
  * @work: The work strucutre what was scheduled.
@@ -435,7 +425,6 @@ static int ks8851_probe_spi(struct spi_device *spi)
 	ks->rdfifo = ks8851_rdfifo_spi;
 	ks->wrfifo = ks8851_wrfifo_spi;
 	ks->start_xmit = ks8851_start_xmit_spi;
-	ks->rx_skb = ks8851_rx_skb_spi;
 	ks->flush_tx_work = ks8851_flush_tx_work_spi;
 
 #define STD_IRQ (IRQ_LCI |	/* Link Change */	\

drivers/net/ethernet/microchip/sparx5/sparx5_port.c

@@ -731,7 +731,7 @@ static int sparx5_port_pcs_low_set(struct sparx5 *sparx5,
 	bool sgmii = false, inband_aneg = false;
 	int err;
 
-	if (port->conf.inband) {
+	if (conf->inband) {
 		if (conf->portmode == PHY_INTERFACE_MODE_SGMII ||
 		    conf->portmode == PHY_INTERFACE_MODE_QSGMII)
 			inband_aneg = true; /* Cisco-SGMII in-band-aneg */
@@ -948,7 +948,7 @@ int sparx5_port_pcs_set(struct sparx5 *sparx5,
 	if (err)
 		return -EINVAL;
 
-	if (port->conf.inband) {
+	if (conf->inband) {
 		/* Enable/disable 1G counters in ASM */
 		spx5_rmw(ASM_PORT_CFG_CSC_STAT_DIS_SET(high_speed_dev),
 			 ASM_PORT_CFG_CSC_STAT_DIS,

drivers/net/ethernet/realtek/r8169.h

@@ -73,6 +73,7 @@ enum mac_version {
 };
 
 struct rtl8169_private;
+struct r8169_led_classdev;
 
 void r8169_apply_firmware(struct rtl8169_private *tp);
 u16 rtl8168h_2_get_adc_bias_ioffset(struct rtl8169_private *tp);
@@ -84,7 +85,8 @@ void r8169_get_led_name(struct rtl8169_private *tp, int idx,
 			char *buf, int buf_len);
 int rtl8168_get_led_mode(struct rtl8169_private *tp);
 int rtl8168_led_mod_ctrl(struct rtl8169_private *tp, u16 mask, u16 val);
-void rtl8168_init_leds(struct net_device *ndev);
+struct r8169_led_classdev *rtl8168_init_leds(struct net_device *ndev);
 int rtl8125_get_led_mode(struct rtl8169_private *tp, int index);
 int rtl8125_set_led_mode(struct rtl8169_private *tp, int index, u16 mode);
-void rtl8125_init_leds(struct net_device *ndev);
+struct r8169_led_classdev *rtl8125_init_leds(struct net_device *ndev);
+void r8169_remove_leds(struct r8169_led_classdev *leds);

drivers/net/ethernet/realtek/r8169_leds.c

@@ -146,22 +146,22 @@ static void rtl8168_setup_ldev(struct r8169_led_classdev *ldev,
 	led_cdev->hw_control_get_device = r8169_led_hw_control_get_device;
 
 	/* ignore errors */
-	devm_led_classdev_register(&ndev->dev, led_cdev);
+	led_classdev_register(&ndev->dev, led_cdev);
 }
 
-void rtl8168_init_leds(struct net_device *ndev)
+struct r8169_led_classdev *rtl8168_init_leds(struct net_device *ndev)
 {
-	/* bind resource mgmt to netdev */
-	struct device *dev = &ndev->dev;
 	struct r8169_led_classdev *leds;
 	int i;
 
-	leds = devm_kcalloc(dev, RTL8168_NUM_LEDS, sizeof(*leds), GFP_KERNEL);
+	leds = kcalloc(RTL8168_NUM_LEDS + 1, sizeof(*leds), GFP_KERNEL);
 	if (!leds)
-		return;
+		return NULL;
 
 	for (i = 0; i < RTL8168_NUM_LEDS; i++)
 		rtl8168_setup_ldev(leds + i, ndev, i);
+
+	return leds;
 }
 
 static int rtl8125_led_hw_control_is_supported(struct led_classdev *led_cdev,
@@ -245,20 +245,31 @@ static void rtl8125_setup_led_ldev(struct r8169_led_classdev *ldev,
 	led_cdev->hw_control_get_device = r8169_led_hw_control_get_device;
 
 	/* ignore errors */
-	devm_led_classdev_register(&ndev->dev, led_cdev);
+	led_classdev_register(&ndev->dev, led_cdev);
 }
 
-void rtl8125_init_leds(struct net_device *ndev)
+struct r8169_led_classdev *rtl8125_init_leds(struct net_device *ndev)
 {
-	/* bind resource mgmt to netdev */
-	struct device *dev = &ndev->dev;
 	struct r8169_led_classdev *leds;
 	int i;
 
-	leds = devm_kcalloc(dev, RTL8125_NUM_LEDS, sizeof(*leds), GFP_KERNEL);
+	leds = kcalloc(RTL8125_NUM_LEDS + 1, sizeof(*leds), GFP_KERNEL);
 	if (!leds)
-		return;
+		return NULL;
 
 	for (i = 0; i < RTL8125_NUM_LEDS; i++)
 		rtl8125_setup_led_ldev(leds + i, ndev, i);
+
+	return leds;
+}
+
+void r8169_remove_leds(struct r8169_led_classdev *leds)
+{
+	if (!leds)
+		return;
+
+	for (struct r8169_led_classdev *l = leds; l->ndev; l++)
+		led_classdev_unregister(&l->led);
+
+	kfree(leds);
 }

drivers/net/ethernet/realtek/r8169_main.c

@@ -647,6 +647,8 @@ struct rtl8169_private {
 	const char *fw_name;
 	struct rtl_fw *rtl_fw;
 
+	struct r8169_led_classdev *leds;
+
 	u32 ocp_base;
 };
 
@@ -5044,6 +5046,9 @@ static void rtl_remove_one(struct pci_dev *pdev)
 
 	cancel_work_sync(&tp->wk.work);
 
+	if (IS_ENABLED(CONFIG_R8169_LEDS))
+		r8169_remove_leds(tp->leds);
+
 	unregister_netdev(tp->dev);
 
 	if (tp->dash_type != RTL_DASH_NONE)
@@ -5501,9 +5506,9 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	if (IS_ENABLED(CONFIG_R8169_LEDS)) {
 		if (rtl_is_8125(tp))
-			rtl8125_init_leds(dev);
+			tp->leds = rtl8125_init_leds(dev);
 		else if (tp->mac_version > RTL_GIGA_MAC_VER_06)
-			rtl8168_init_leds(dev);
+			tp->leds = rtl8168_init_leds(dev);
 	}
 
 	netdev_info(dev, "%s, %pM, XID %03x, IRQ %d\n",

drivers/net/ethernet/stmicro/stmmac/mmc.h

@@ -52,6 +52,7 @@ struct stmmac_counters {
 	unsigned int mmc_tx_excessdef;
 	unsigned int mmc_tx_pause_frame;
 	unsigned int mmc_tx_vlan_frame_g;
+	unsigned int mmc_tx_oversize_g;
 	unsigned int mmc_tx_lpi_usec;
 	unsigned int mmc_tx_lpi_tran;
 
@@ -80,6 +81,7 @@ struct stmmac_counters {
 	unsigned int mmc_rx_fifo_overflow;
 	unsigned int mmc_rx_vlan_frames_gb;
 	unsigned int mmc_rx_watchdog_error;
+	unsigned int mmc_rx_error;
 	unsigned int mmc_rx_lpi_usec;
 	unsigned int mmc_rx_lpi_tran;
 	unsigned int mmc_rx_discard_frames_gb;

drivers/net/ethernet/stmicro/stmmac/mmc_core.c

@@ -53,6 +53,7 @@
 #define MMC_TX_EXCESSDEF		0x6c
 #define MMC_TX_PAUSE_FRAME		0x70
 #define MMC_TX_VLAN_FRAME_G		0x74
+#define MMC_TX_OVERSIZE_G		0x78
 
 /* MMC RX counter registers */
 #define MMC_RX_FRAMECOUNT_GB		0x80
@@ -79,6 +80,13 @@
 #define MMC_RX_FIFO_OVERFLOW		0xd4
 #define MMC_RX_VLAN_FRAMES_GB		0xd8
 #define MMC_RX_WATCHDOG_ERROR		0xdc
+#define MMC_RX_ERROR			0xe0
+
+#define MMC_TX_LPI_USEC			0xec
+#define MMC_TX_LPI_TRAN			0xf0
+#define MMC_RX_LPI_USEC			0xf4
+#define MMC_RX_LPI_TRAN			0xf8
+
 /* IPC*/
 #define MMC_RX_IPC_INTR_MASK		0x100
 #define MMC_RX_IPC_INTR			0x108
@@ -283,6 +291,9 @@ static void dwmac_mmc_read(void __iomem *mmcaddr, struct stmmac_counters *mmc)
 	mmc->mmc_tx_excessdef += readl(mmcaddr + MMC_TX_EXCESSDEF);
 	mmc->mmc_tx_pause_frame += readl(mmcaddr + MMC_TX_PAUSE_FRAME);
 	mmc->mmc_tx_vlan_frame_g += readl(mmcaddr + MMC_TX_VLAN_FRAME_G);
+	mmc->mmc_tx_oversize_g	 += readl(mmcaddr + MMC_TX_OVERSIZE_G);
+	mmc->mmc_tx_lpi_usec += readl(mmcaddr + MMC_TX_LPI_USEC);
+	mmc->mmc_tx_lpi_tran += readl(mmcaddr + MMC_TX_LPI_TRAN);
 
 	/* MMC RX counter registers */
 	mmc->mmc_rx_framecount_gb += readl(mmcaddr + MMC_RX_FRAMECOUNT_GB);
@@ -316,6 +327,10 @@ static void dwmac_mmc_read(void __iomem *mmcaddr, struct stmmac_counters *mmc)
 	mmc->mmc_rx_fifo_overflow += readl(mmcaddr + MMC_RX_FIFO_OVERFLOW);
 	mmc->mmc_rx_vlan_frames_gb += readl(mmcaddr + MMC_RX_VLAN_FRAMES_GB);
 	mmc->mmc_rx_watchdog_error += readl(mmcaddr + MMC_RX_WATCHDOG_ERROR);
+	mmc->mmc_rx_error += readl(mmcaddr + MMC_RX_ERROR);
+	mmc->mmc_rx_lpi_usec += readl(mmcaddr + MMC_RX_LPI_USEC);
+	mmc->mmc_rx_lpi_tran += readl(mmcaddr + MMC_RX_LPI_TRAN);
+
 	/* IPv4 */
 	mmc->mmc_rx_ipv4_gd += readl(mmcaddr + MMC_RX_IPV4_GD);
 	mmc->mmc_rx_ipv4_hderr += readl(mmcaddr + MMC_RX_IPV4_HDERR);

drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c

@@ -212,6 +212,7 @@ static const struct stmmac_stats stmmac_mmc[] = {
 	STMMAC_MMC_STAT(mmc_tx_excessdef),
 	STMMAC_MMC_STAT(mmc_tx_pause_frame),
 	STMMAC_MMC_STAT(mmc_tx_vlan_frame_g),
+	STMMAC_MMC_STAT(mmc_tx_oversize_g),
 	STMMAC_MMC_STAT(mmc_tx_lpi_usec),
 	STMMAC_MMC_STAT(mmc_tx_lpi_tran),
 	STMMAC_MMC_STAT(mmc_rx_framecount_gb),
@@ -238,6 +239,7 @@ static const struct stmmac_stats stmmac_mmc[] = {
 	STMMAC_MMC_STAT(mmc_rx_fifo_overflow),
 	STMMAC_MMC_STAT(mmc_rx_vlan_frames_gb),
 	STMMAC_MMC_STAT(mmc_rx_watchdog_error),
+	STMMAC_MMC_STAT(mmc_rx_error),
 	STMMAC_MMC_STAT(mmc_rx_lpi_usec),
 	STMMAC_MMC_STAT(mmc_rx_lpi_tran),
 	STMMAC_MMC_STAT(mmc_rx_discard_frames_gb),

drivers/net/geneve.c

@@ -822,7 +822,7 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev,
 	__be16 sport;
 	int err;
 
-	if (!pskb_inet_may_pull(skb))
+	if (!skb_vlan_inet_prepare(skb))
 		return -EINVAL;
 
 	if (!gs4)
@@ -929,7 +929,7 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev,
 	__be16 sport;
 	int err;
 
-	if (!pskb_inet_may_pull(skb))
+	if (!skb_vlan_inet_prepare(skb))
 		return -EINVAL;
 
 	if (!gs6)

drivers/net/virtio_net.c

@@ -3807,6 +3807,7 @@ static int virtnet_set_rxfh(struct net_device *dev,
 			    struct netlink_ext_ack *extack)
 {
 	struct virtnet_info *vi = netdev_priv(dev);
+	bool update = false;
 	int i;
 
 	if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
@@ -3814,13 +3815,28 @@ static int virtnet_set_rxfh(struct net_device *dev,
 		return -EOPNOTSUPP;
 
 	if (rxfh->indir) {
+		if (!vi->has_rss)
+			return -EOPNOTSUPP;
+
 		for (i = 0; i < vi->rss_indir_table_size; ++i)
 			vi->ctrl->rss.indirection_table[i] = rxfh->indir[i];
+		update = true;
 	}
-	if (rxfh->key)
-		memcpy(vi->ctrl->rss.key, rxfh->key, vi->rss_key_size);
 
-	virtnet_commit_rss_command(vi);
+	if (rxfh->key) {
+		/* If either _F_HASH_REPORT or _F_RSS are negotiated, the
+		 * device provides hash calculation capabilities, that is,
+		 * hash_key is configured.
+		 */
+		if (!vi->has_rss && !vi->has_rss_hash_report)
+			return -EOPNOTSUPP;
+
+		memcpy(vi->ctrl->rss.key, rxfh->key, vi->rss_key_size);
+		update = true;
+	}
+
+	if (update)
+		virtnet_commit_rss_command(vi);
 
 	return 0;
 }
@@ -4729,13 +4745,15 @@ static int virtnet_probe(struct virtio_device *vdev)
 	if (virtio_has_feature(vdev, VIRTIO_NET_F_HASH_REPORT))
 		vi->has_rss_hash_report = true;
 
-	if (virtio_has_feature(vdev, VIRTIO_NET_F_RSS))
+	if (virtio_has_feature(vdev, VIRTIO_NET_F_RSS)) {
 		vi->has_rss = true;
 
-	if (vi->has_rss || vi->has_rss_hash_report) {
 		vi->rss_indir_table_size =
 			virtio_cread16(vdev, offsetof(struct virtio_net_config,
 				rss_max_indirection_table_length));
+	}
+
+	if (vi->has_rss || vi->has_rss_hash_report) {
 		vi->rss_key_size =
 			virtio_cread8(vdev, offsetof(struct virtio_net_config, rss_max_key_size));
 

include/linux/sockptr.h

@@ -50,11 +50,36 @@ static inline int copy_from_sockptr_offset(void *dst, sockptr_t src,
 	return 0;
 }
 
+/* Deprecated.
+ * This is unsafe, unless caller checked user provided optlen.
+ * Prefer copy_safe_from_sockptr() instead.
+ */
 static inline int copy_from_sockptr(void *dst, sockptr_t src, size_t size)
 {
 	return copy_from_sockptr_offset(dst, src, 0, size);
 }
 
+/**
+ * copy_safe_from_sockptr: copy a struct from sockptr
+ * @dst:   Destination address, in kernel space. This buffer must be @ksize
+ *         bytes long.
+ * @ksize: Size of @dst struct.
+ * @optval: Source address. (in user or kernel space)
+ * @optlen: Size of @optval data.
+ *
+ * Returns:
+ *  * -EINVAL: @optlen < @ksize
+ *  * -EFAULT: access to userspace failed.
+ *  * 0 : @ksize bytes were copied
+ */
+static inline int copy_safe_from_sockptr(void *dst, size_t ksize,
+					 sockptr_t optval, unsigned int optlen)
+{
+	if (optlen < ksize)
+		return -EINVAL;
+	return copy_from_sockptr(dst, optval, ksize);
+}
+
 static inline int copy_struct_from_sockptr(void *dst, size_t ksize,
 		sockptr_t src, size_t usize)
 {

include/linux/u64_stats_sync.h

@@ -135,10 +135,11 @@ static inline void u64_stats_inc(u64_stats_t *p)
 	p->v++;
 }
 
-static inline void u64_stats_init(struct u64_stats_sync *syncp)
+#define u64_stats_init(syncp)				\
-{
+	do {						\
-	seqcount_init(&syncp->seq);
+		struct u64_stats_sync *__s = (syncp);	\
-}
+		seqcount_init(&__s->seq);		\
+	} while (0)
 
 static inline void __u64_stats_update_begin(struct u64_stats_sync *syncp)
 {

include/net/addrconf.h

@@ -438,6 +438,10 @@ static inline void in6_ifa_hold(struct inet6_ifaddr *ifp)
 	refcount_inc(&ifp->refcnt);
 }
 
+static inline bool in6_ifa_hold_safe(struct inet6_ifaddr *ifp)
+{
+	return refcount_inc_not_zero(&ifp->refcnt);
+}
 
 /*
  *	compute link-local solicited-node multicast address

include/net/bluetooth/bluetooth.h

@@ -585,6 +585,15 @@ static inline struct sk_buff *bt_skb_sendmmsg(struct sock *sk,
 	return skb;
 }
 
+static inline int bt_copy_from_sockptr(void *dst, size_t dst_size,
+				       sockptr_t src, size_t src_size)
+{
+	if (dst_size > src_size)
+		return -EINVAL;
+
+	return copy_from_sockptr(dst, src, dst_size);
+}
+
 int bt_to_errno(u16 code);
 __u8 bt_status(int err);
 

include/net/ip_tunnels.h

@@ -361,6 +361,39 @@ static inline bool pskb_inet_may_pull(struct sk_buff *skb)
 	return pskb_network_may_pull(skb, nhlen);
 }
 
+/* Variant of pskb_inet_may_pull().
+ */
+static inline bool skb_vlan_inet_prepare(struct sk_buff *skb)
+{
+	int nhlen = 0, maclen = ETH_HLEN;
+	__be16 type = skb->protocol;
+
+	/* Essentially this is skb_protocol(skb, true)
+	 * And we get MAC len.
+	 */
+	if (eth_type_vlan(type))
+		type = __vlan_get_protocol(skb, type, &maclen);
+
+	switch (type) {
+#if IS_ENABLED(CONFIG_IPV6)
+	case htons(ETH_P_IPV6):
+		nhlen = sizeof(struct ipv6hdr);
+		break;
+#endif
+	case htons(ETH_P_IP):
+		nhlen = sizeof(struct iphdr);
+		break;
+	}
+	/* For ETH_P_IPV6/ETH_P_IP we make sure to pull
+	 * a base network header in skb->head.
+	 */
+	if (!pskb_may_pull(skb, maclen + nhlen))
+		return false;
+
+	skb_set_network_header(skb, maclen);
+	return true;
+}
+
 static inline int ip_encap_hlen(struct ip_tunnel_encap *e)
 {
 	const struct ip_tunnel_encap_ops *ops;

lib/checksum_kunit.c

@@ -594,13 +594,15 @@ static void test_ip_fast_csum(struct kunit *test)
 
 static void test_csum_ipv6_magic(struct kunit *test)
 {
-#if defined(CONFIG_NET)
 	const struct in6_addr *saddr;
 	const struct in6_addr *daddr;
 	unsigned int len;
 	unsigned char proto;
 	__wsum csum;
 
+	if (!IS_ENABLED(CONFIG_NET))
+		return;
+
 	const int daddr_offset = sizeof(struct in6_addr);
 	const int len_offset = sizeof(struct in6_addr) + sizeof(struct in6_addr);
 	const int proto_offset = sizeof(struct in6_addr) + sizeof(struct in6_addr) +
@@ -618,7 +620,6 @@ static void test_csum_ipv6_magic(struct kunit *test)
 		CHECK_EQ(to_sum16(expected_csum_ipv6_magic[i]),
 			 csum_ipv6_magic(saddr, daddr, len, proto, csum));
 	}
-#endif /* !CONFIG_NET */
 }
 
 static struct kunit_case __refdata checksum_test_cases[] = {

net/batman-adv/translation-table.c

@@ -3948,7 +3948,7 @@ void batadv_tt_local_resize_to_mtu(struct net_device *soft_iface)
 
 	spin_lock_bh(&bat_priv->tt.commit_lock);
 
-	while (true) {
+	while (timeout) {
 		table_size = batadv_tt_local_table_transmit_size(bat_priv);
 		if (packet_size_max >= table_size)
 			break;

net/bluetooth/hci_request.c

@@ -105,8 +105,10 @@ void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode,
 	if (hdev->req_status == HCI_REQ_PEND) {
 		hdev->req_result = result;
 		hdev->req_status = HCI_REQ_DONE;
-		if (skb)
+		if (skb) {
+			kfree_skb(hdev->req_skb);
 			hdev->req_skb = skb_get(skb);
+		}
 		wake_up_interruptible(&hdev->req_wait_q);
 	}
 }

net/bluetooth/hci_sock.c

@@ -1946,10 +1946,9 @@ static int hci_sock_setsockopt_old(struct socket *sock, int level, int optname,
 
 	switch (optname) {
 	case HCI_DATA_DIR:
-		if (copy_from_sockptr(&opt, optval, sizeof(opt))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, len);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		if (opt)
 			hci_pi(sk)->cmsg_mask |= HCI_CMSG_DIR;
@@ -1958,10 +1957,9 @@ static int hci_sock_setsockopt_old(struct socket *sock, int level, int optname,
 		break;
 
 	case HCI_TIME_STAMP:
-		if (copy_from_sockptr(&opt, optval, sizeof(opt))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, len);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		if (opt)
 			hci_pi(sk)->cmsg_mask |= HCI_CMSG_TSTAMP;
@@ -1979,11 +1977,9 @@ static int hci_sock_setsockopt_old(struct socket *sock, int level, int optname,
 			uf.event_mask[1] = *((u32 *) f->event_mask + 1);
 		}
 
-		len = min_t(unsigned int, len, sizeof(uf));
+		err = bt_copy_from_sockptr(&uf, sizeof(uf), optval, len);
-		if (copy_from_sockptr(&uf, optval, len)) {
+		if (err)
-			err = -EFAULT;
 			break;
-		}
 
 		if (!capable(CAP_NET_RAW)) {
 			uf.type_mask &= hci_sec_filter.type_mask;
@@ -2042,10 +2038,9 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
 			goto done;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(opt))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, len);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		hci_pi(sk)->mtu = opt;
 		break;

net/bluetooth/hci_sync.c

@@ -2814,8 +2814,8 @@ static int hci_le_set_ext_scan_param_sync(struct hci_dev *hdev, u8 type,
 				if (qos->bcast.in.phy & BT_ISO_PHY_CODED) {
 					cp->scanning_phys |= LE_SCAN_PHY_CODED;
 					hci_le_scan_phy_params(phy, type,
-							       interval,
+							       interval * 3,
-							       window);
+							       window * 3);
 					num_phy++;
 					phy++;
 				}
@@ -2835,7 +2835,7 @@ static int hci_le_set_ext_scan_param_sync(struct hci_dev *hdev, u8 type,
 
 	if (scan_coded(hdev)) {
 		cp->scanning_phys |= LE_SCAN_PHY_CODED;
-		hci_le_scan_phy_params(phy, type, interval, window);
+		hci_le_scan_phy_params(phy, type, interval * 3, window * 3);
 		num_phy++;
 		phy++;
 	}

net/bluetooth/iso.c

@@ -1451,8 +1451,8 @@ static bool check_ucast_qos(struct bt_iso_qos *qos)
 
 static bool check_bcast_qos(struct bt_iso_qos *qos)
 {
-	if (qos->bcast.sync_factor == 0x00)
+	if (!qos->bcast.sync_factor)
-		return false;
+		qos->bcast.sync_factor = 0x01;
 
 	if (qos->bcast.packing > 0x01)
 		return false;
@@ -1475,6 +1475,9 @@ static bool check_bcast_qos(struct bt_iso_qos *qos)
 	if (qos->bcast.skip > 0x01f3)
 		return false;
 
+	if (!qos->bcast.sync_timeout)
+		qos->bcast.sync_timeout = BT_ISO_SYNC_TIMEOUT;
+
 	if (qos->bcast.sync_timeout < 0x000a || qos->bcast.sync_timeout > 0x4000)
 		return false;
 
@@ -1484,6 +1487,9 @@ static bool check_bcast_qos(struct bt_iso_qos *qos)
 	if (qos->bcast.mse > 0x1f)
 		return false;
 
+	if (!qos->bcast.timeout)
+		qos->bcast.sync_timeout = BT_ISO_SYNC_TIMEOUT;
+
 	if (qos->bcast.timeout < 0x000a || qos->bcast.timeout > 0x4000)
 		return false;
 
@@ -1494,7 +1500,7 @@ static int iso_sock_setsockopt(struct socket *sock, int level, int optname,
 			       sockptr_t optval, unsigned int optlen)
 {
 	struct sock *sk = sock->sk;
-	int len, err = 0;
+	int err = 0;
 	struct bt_iso_qos qos = default_qos;
 	u32 opt;
 
@@ -1509,10 +1515,9 @@ static int iso_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		if (opt)
 			set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
@@ -1521,10 +1526,9 @@ static int iso_sock_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case BT_PKT_STATUS:
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		if (opt)
 			set_bit(BT_SK_PKT_STATUS, &bt_sk(sk)->flags);
@@ -1539,17 +1543,9 @@ static int iso_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		len = min_t(unsigned int, sizeof(qos), optlen);
+		err = bt_copy_from_sockptr(&qos, sizeof(qos), optval, optlen);
-
+		if (err)
-		if (copy_from_sockptr(&qos, optval, len)) {
-			err = -EFAULT;
 			break;
-		}
-
-		if (len == sizeof(qos.ucast) && !check_ucast_qos(&qos)) {
-			err = -EINVAL;
-			break;
-		}
 
 		iso_pi(sk)->qos = qos;
 		iso_pi(sk)->qos_user_set = true;
@@ -1564,18 +1560,16 @@ static int iso_sock_setsockopt(struct socket *sock, int level, int optname,
 		}
 
 		if (optlen > sizeof(iso_pi(sk)->base)) {
-			err = -EOVERFLOW;
+			err = -EINVAL;
 			break;
 		}
 
-		len = min_t(unsigned int, sizeof(iso_pi(sk)->base), optlen);
+		err = bt_copy_from_sockptr(iso_pi(sk)->base, optlen, optval,
-
+					   optlen);
-		if (copy_from_sockptr(iso_pi(sk)->base, optval, len)) {
+		if (err)
-			err = -EFAULT;
 			break;
-		}
 
-		iso_pi(sk)->base_len = len;
+		iso_pi(sk)->base_len = optlen;
 
 		break;
 

net/bluetooth/l2cap_core.c

@@ -4054,8 +4054,7 @@ static int l2cap_connect_req(struct l2cap_conn *conn,
 		return -EPROTO;
 
 	hci_dev_lock(hdev);
-	if (hci_dev_test_flag(hdev, HCI_MGMT) &&
+	if (hci_dev_test_flag(hdev, HCI_MGMT))
-	    !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &hcon->flags))
 		mgmt_device_connected(hdev, hcon, NULL, 0);
 	hci_dev_unlock(hdev);
 

net/bluetooth/l2cap_sock.c

@@ -727,7 +727,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
 	struct sock *sk = sock->sk;
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
 	struct l2cap_options opts;
-	int len, err = 0;
+	int err = 0;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
@@ -754,11 +754,9 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
 		opts.max_tx   = chan->max_tx;
 		opts.txwin_size = chan->tx_win;
 
-		len = min_t(unsigned int, sizeof(opts), optlen);
+		err = bt_copy_from_sockptr(&opts, sizeof(opts), optval, optlen);
-		if (copy_from_sockptr(&opts, optval, len)) {
+		if (err)
-			err = -EFAULT;
 			break;
-		}
 
 		if (opts.txwin_size > L2CAP_DEFAULT_EXT_WINDOW) {
 			err = -EINVAL;
@@ -801,10 +799,9 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
 		break;
 
 	case L2CAP_LM:
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		if (opt & L2CAP_LM_FIPS) {
 			err = -EINVAL;
@@ -885,7 +882,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 	struct bt_security sec;
 	struct bt_power pwr;
 	struct l2cap_conn *conn;
-	int len, err = 0;
+	int err = 0;
 	u32 opt;
 	u16 mtu;
 	u8 mode;
@@ -911,11 +908,9 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 
 		sec.level = BT_SECURITY_LOW;
 
-		len = min_t(unsigned int, sizeof(sec), optlen);
+		err = bt_copy_from_sockptr(&sec, sizeof(sec), optval, optlen);
-		if (copy_from_sockptr(&sec, optval, len)) {
+		if (err)
-			err = -EFAULT;
 			break;
-		}
 
 		if (sec.level < BT_SECURITY_LOW ||
 		    sec.level > BT_SECURITY_FIPS) {
@@ -960,10 +955,9 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		if (opt) {
 			set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
@@ -975,10 +969,9 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case BT_FLUSHABLE:
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		if (opt > BT_FLUSHABLE_ON) {
 			err = -EINVAL;
@@ -1010,11 +1003,9 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 
 		pwr.force_active = BT_POWER_FORCE_ACTIVE_ON;
 
-		len = min_t(unsigned int, sizeof(pwr), optlen);
+		err = bt_copy_from_sockptr(&pwr, sizeof(pwr), optval, optlen);
-		if (copy_from_sockptr(&pwr, optval, len)) {
+		if (err)
-			err = -EFAULT;
 			break;
-		}
 
 		if (pwr.force_active)
 			set_bit(FLAG_FORCE_ACTIVE, &chan->flags);
@@ -1023,10 +1014,9 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case BT_CHANNEL_POLICY:
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		err = -EOPNOTSUPP;
 		break;
@@ -1055,10 +1045,9 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&mtu, optval, sizeof(u16))) {
+		err = bt_copy_from_sockptr(&mtu, sizeof(mtu), optval, optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		if (chan->mode == L2CAP_MODE_EXT_FLOWCTL &&
 		    sk->sk_state == BT_CONNECTED)
@@ -1086,10 +1075,9 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&mode, optval, sizeof(u8))) {
+		err = bt_copy_from_sockptr(&mode, sizeof(mode), optval, optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		BT_DBG("mode %u", mode);
 

net/bluetooth/rfcomm/sock.c

@@ -629,7 +629,7 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname,
 
 	switch (optname) {
 	case RFCOMM_LM:
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		if (bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen)) {
 			err = -EFAULT;
 			break;
 		}
@@ -664,7 +664,6 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname,
 	struct sock *sk = sock->sk;
 	struct bt_security sec;
 	int err = 0;
-	size_t len;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
@@ -686,11 +685,9 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname,
 
 		sec.level = BT_SECURITY_LOW;
 
-		len = min_t(unsigned int, sizeof(sec), optlen);
+		err = bt_copy_from_sockptr(&sec, sizeof(sec), optval, optlen);
-		if (copy_from_sockptr(&sec, optval, len)) {
+		if (err)
-			err = -EFAULT;
 			break;
-		}
 
 		if (sec.level > BT_SECURITY_HIGH) {
 			err = -EINVAL;
@@ -706,10 +703,9 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		if (opt)
 			set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);

net/bluetooth/sco.c

@@ -824,7 +824,7 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 			       sockptr_t optval, unsigned int optlen)
 {
 	struct sock *sk = sock->sk;
-	int len, err = 0;
+	int err = 0;
 	struct bt_voice voice;
 	u32 opt;
 	struct bt_codecs *codecs;
@@ -843,10 +843,9 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		if (opt)
 			set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
@@ -863,11 +862,10 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 
 		voice.setting = sco_pi(sk)->setting;
 
-		len = min_t(unsigned int, sizeof(voice), optlen);
+		err = bt_copy_from_sockptr(&voice, sizeof(voice), optval,
-		if (copy_from_sockptr(&voice, optval, len)) {
+					   optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		/* Explicitly check for these values */
 		if (voice.setting != BT_VOICE_TRANSPARENT &&
@@ -890,10 +888,9 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case BT_PKT_STATUS:
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
-			err = -EFAULT;
+		if (err)
 			break;
-		}
 
 		if (opt)
 			set_bit(BT_SK_PKT_STATUS, &bt_sk(sk)->flags);
@@ -934,9 +931,9 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(buffer, optval, optlen)) {
+		err = bt_copy_from_sockptr(buffer, optlen, optval, optlen);
+		if (err) {
 			hci_dev_put(hdev);
-			err = -EFAULT;
 			break;
 		}
 

net/ipv4/netfilter/arp_tables.c

@@ -966,6 +966,8 @@ static int do_replace(struct net *net, sockptr_t arg, unsigned int len)
 		return -ENOMEM;
 	if (tmp.num_counters == 0)
 		return -EINVAL;
+	if ((u64)len < (u64)tmp.size + sizeof(tmp))
+		return -EINVAL;
 
 	tmp.name[sizeof(tmp.name)-1] = 0;
 
@@ -1266,6 +1268,8 @@ static int compat_do_replace(struct net *net, sockptr_t arg, unsigned int len)
 		return -ENOMEM;
 	if (tmp.num_counters == 0)
 		return -EINVAL;
+	if ((u64)len < (u64)tmp.size + sizeof(tmp))
+		return -EINVAL;
 
 	tmp.name[sizeof(tmp.name)-1] = 0;
 

net/ipv4/netfilter/ip_tables.c

@@ -1118,6 +1118,8 @@ do_replace(struct net *net, sockptr_t arg, unsigned int len)
 		return -ENOMEM;
 	if (tmp.num_counters == 0)
 		return -EINVAL;
+	if ((u64)len < (u64)tmp.size + sizeof(tmp))
+		return -EINVAL;
 
 	tmp.name[sizeof(tmp.name)-1] = 0;
 
@@ -1504,6 +1506,8 @@ compat_do_replace(struct net *net, sockptr_t arg, unsigned int len)
 		return -ENOMEM;
 	if (tmp.num_counters == 0)
 		return -EINVAL;
+	if ((u64)len < (u64)tmp.size + sizeof(tmp))
+		return -EINVAL;
 
 	tmp.name[sizeof(tmp.name)-1] = 0;
 

net/ipv4/route.c

@@ -926,13 +926,11 @@ void ip_rt_send_redirect(struct sk_buff *skb)
 		icmp_send(skb, ICMP_REDIRECT, ICMP_REDIR_HOST, gw);
 		peer->rate_last = jiffies;
 		++peer->n_redirects;
-#ifdef CONFIG_IP_ROUTE_VERBOSE
+		if (IS_ENABLED(CONFIG_IP_ROUTE_VERBOSE) && log_martians &&
-		if (log_martians &&
 		    peer->n_redirects == ip_rt_redirect_number)
 			net_warn_ratelimited("host %pI4/if%d ignores redirects for %pI4 to %pI4\n",
 					     &ip_hdr(skb)->saddr, inet_iif(skb),
 					     &ip_hdr(skb)->daddr, &gw);
-#endif
 	}
 out_put_peer:
 	inet_putpeer(peer);

net/ipv6/addrconf.c

@@ -2091,9 +2091,10 @@ struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *add
 		if (ipv6_addr_equal(&ifp->addr, addr)) {
 			if (!dev || ifp->idev->dev == dev ||
 			    !(ifp->scope&(IFA_LINK|IFA_HOST) || strict)) {
-				result = ifp;
+				if (in6_ifa_hold_safe(ifp)) {
-				in6_ifa_hold(ifp);
+					result = ifp;
-				break;
+					break;
+				}
 			}
 		}
 	}

net/ipv6/ip6_fib.c

@@ -1385,7 +1385,10 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 	     struct nl_info *info, struct netlink_ext_ack *extack)
 {
 	struct fib6_table *table = rt->fib6_table;
-	struct fib6_node *fn, *pn = NULL;
+	struct fib6_node *fn;
+#ifdef CONFIG_IPV6_SUBTREES
+	struct fib6_node *pn = NULL;
+#endif
 	int err = -ENOMEM;
 	int allow_create = 1;
 	int replace_required = 0;
@@ -1409,9 +1412,9 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 		goto out;
 	}
 
+#ifdef CONFIG_IPV6_SUBTREES
 	pn = fn;
 
-#ifdef CONFIG_IPV6_SUBTREES
 	if (rt->fib6_src.plen) {
 		struct fib6_node *sn;
 

net/ipv6/netfilter/ip6_tables.c

@@ -1135,6 +1135,8 @@ do_replace(struct net *net, sockptr_t arg, unsigned int len)
 		return -ENOMEM;
 	if (tmp.num_counters == 0)
 		return -EINVAL;
+	if ((u64)len < (u64)tmp.size + sizeof(tmp))
+		return -EINVAL;
 
 	tmp.name[sizeof(tmp.name)-1] = 0;
 
@@ -1513,6 +1515,8 @@ compat_do_replace(struct net *net, sockptr_t arg, unsigned int len)
 		return -ENOMEM;
 	if (tmp.num_counters == 0)
 		return -EINVAL;
+	if ((u64)len < (u64)tmp.size + sizeof(tmp))
+		return -EINVAL;
 
 	tmp.name[sizeof(tmp.name)-1] = 0;
 

net/nfc/llcp_sock.c

@@ -252,10 +252,10 @@ static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		err = copy_safe_from_sockptr(&opt, sizeof(opt),
-			err = -EFAULT;
+					     optval, optlen);
+		if (err)
 			break;
-		}
 
 		if (opt > LLCP_MAX_RW) {
 			err = -EINVAL;
@@ -274,10 +274,10 @@ static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+		err = copy_safe_from_sockptr(&opt, sizeof(opt),
-			err = -EFAULT;
+					     optval, optlen);
+		if (err)
 			break;
-		}
 
 		if (opt > LLCP_MAX_MIUX) {
 			err = -EINVAL;

net/openvswitch/conntrack.c

@@ -1380,8 +1380,9 @@ int ovs_ct_copy_action(struct net *net, const struct nlattr *attr,
 	if (ct_info.timeout[0]) {
 		if (nf_ct_set_timeout(net, ct_info.ct, family, key->ip.proto,
 				      ct_info.timeout))
-			pr_info_ratelimited("Failed to associated timeout "
+			OVS_NLERR(log,
-					    "policy `%s'\n", ct_info.timeout);
+				  "Failed to associated timeout policy '%s'",
+				  ct_info.timeout);
 		else
 			ct_info.nf_ct_timeout = rcu_dereference(
 				nf_ct_timeout_find(ct_info.ct)->timeout);

net/unix/af_unix.c

@@ -2665,7 +2665,9 @@ static struct sk_buff *manage_oob(struct sk_buff *skb, struct sock *sk,
 				}
 			} else if (!(flags & MSG_PEEK)) {
 				skb_unlink(skb, &sk->sk_receive_queue);
-				consume_skb(skb);
+				WRITE_ONCE(u->oob_skb, NULL);
+				if (!WARN_ON_ONCE(skb_unref(skb)))
+					kfree_skb(skb);
 				skb = skb_peek(&sk->sk_receive_queue);
 			}
 		}

net/unix/garbage.c

@@ -274,11 +274,22 @@ static void __unix_gc(struct work_struct *work)
 	 * receive queues.  Other, non candidate sockets _can_ be
 	 * added to queue, so we must make sure only to touch
 	 * candidates.
+	 *
+	 * Embryos, though never candidates themselves, affect which
+	 * candidates are reachable by the garbage collector.  Before
+	 * being added to a listener's queue, an embryo may already
+	 * receive data carrying SCM_RIGHTS, potentially making the
+	 * passed socket a candidate that is not yet reachable by the
+	 * collector.  It becomes reachable once the embryo is
+	 * enqueued.  Therefore, we must ensure that no SCM-laden
+	 * embryo appears in a (candidate) listener's queue between
+	 * consecutive scan_children() calls.
 	 */
 	list_for_each_entry_safe(u, next, &gc_inflight_list, link) {
+		struct sock *sk = &u->sk;
 		long total_refs;
 
-		total_refs = file_count(u->sk.sk_socket->file);
+		total_refs = file_count(sk->sk_socket->file);
 
 		WARN_ON_ONCE(!u->inflight);
 		WARN_ON_ONCE(total_refs < u->inflight);
@@ -286,6 +297,11 @@ static void __unix_gc(struct work_struct *work)
 			list_move_tail(&u->link, &gc_candidates);
 			__set_bit(UNIX_GC_CANDIDATE, &u->gc_flags);
 			__set_bit(UNIX_GC_MAYBE_CYCLE, &u->gc_flags);
+
+			if (sk->sk_state == TCP_LISTEN) {
+				unix_state_lock(sk);
+				unix_state_unlock(sk);
+			}
 		}
 	}
 

net/xdp/xsk.c

@@ -1417,6 +1417,8 @@ static int xsk_setsockopt(struct socket *sock, int level, int optname,
 		struct xsk_queue **q;
 		int entries;
 
+		if (optlen < sizeof(entries))
+			return -EINVAL;
 		if (copy_from_sockptr(&entries, optval, sizeof(entries)))
 			return -EFAULT;