Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 340 insertions, 0 deletions

diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
new file mode 100644
index 000000000..422257c35
--- /dev/null
+++ b/arch/x86/lib/usercopy_32.c
@@ -0,0 +1,340 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * User address space access functions.
+ * The non inlined parts of asm-i386/uaccess.h are here.
+ *
+ * Copyright 1997 Andi Kleen <ak@muc.de>
+ * Copyright 1997 Linus Torvalds
+ */
+#include <linux/export.h>
+#include <linux/uaccess.h>
+#include <asm/asm.h>
+
+#ifdef CONFIG_X86_INTEL_USERCOPY
+/*
+ * Alignment at which movsl is preferred for bulk memory copies.
+ */
+struct movsl_mask movsl_mask __read_mostly;
+#endif
+
+static inline int __movsl_is_ok(unsigned long a1, unsigned long a2, unsigned long n)
+{
+#ifdef CONFIG_X86_INTEL_USERCOPY
+	if (n >= 64 && ((a1 ^ a2) & movsl_mask.mask))
+		return 0;
+#endif
+	return 1;
+}
+#define movsl_is_ok(a1, a2, n) \
+	__movsl_is_ok((unsigned long)(a1), (unsigned long)(a2), (n))
+
+/*
+ * Zero Userspace
+ */
+
+#define __do_clear_user(addr,size)					\
+do {									\
+	int __d0;							\
+	might_fault();							\
+	__asm__ __volatile__(						\
+		ASM_STAC "\n"						\
+		"0:	rep; stosl\n"					\
+		"	movl %2,%0\n"					\
+		"1:	rep; stosb\n"					\
+		"2: " ASM_CLAC "\n"					\
+		_ASM_EXTABLE_TYPE_REG(0b, 2b, EX_TYPE_UCOPY_LEN4, %2)	\
+		_ASM_EXTABLE_UA(1b, 2b)					\
+		: "=&c"(size), "=&D" (__d0)				\
+		: "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0));	\
+} while (0)
+
+/**
+ * clear_user - Zero a block of memory in user space.
+ * @to:   Destination address, in user space.
+ * @n:    Number of bytes to zero.
+ *
+ * Zero a block of memory in user space.
+ *
+ * Return: number of bytes that could not be cleared.
+ * On success, this will be zero.
+ */
+unsigned long
+clear_user(void __user *to, unsigned long n)
+{
+	might_fault();
+	if (access_ok(to, n))
+		__do_clear_user(to, n);
+	return n;
+}
+EXPORT_SYMBOL(clear_user);
+
+/**
+ * __clear_user - Zero a block of memory in user space, with less checking.
+ * @to:   Destination address, in user space.
+ * @n:    Number of bytes to zero.
+ *
+ * Zero a block of memory in user space.  Caller must check
+ * the specified block with access_ok() before calling this function.
+ *
+ * Return: number of bytes that could not be cleared.
+ * On success, this will be zero.
+ */
+unsigned long
+__clear_user(void __user *to, unsigned long n)
+{
+	__do_clear_user(to, n);
+	return n;
+}
+EXPORT_SYMBOL(__clear_user);
+
+#ifdef CONFIG_X86_INTEL_USERCOPY
+static unsigned long
+__copy_user_intel(void __user *to, const void *from, unsigned long size)
+{
+	int d0, d1;
+	__asm__ __volatile__(
+		       "       .align 2,0x90\n"
+		       "1:     movl 32(%4), %%eax\n"
+		       "       cmpl $67, %0\n"
+		       "       jbe 3f\n"
+		       "2:     movl 64(%4), %%eax\n"
+		       "       .align 2,0x90\n"
+		       "3:     movl 0(%4), %%eax\n"
+		       "4:     movl 4(%4), %%edx\n"
+		       "5:     movl %%eax, 0(%3)\n"
+		       "6:     movl %%edx, 4(%3)\n"
+		       "7:     movl 8(%4), %%eax\n"
+		       "8:     movl 12(%4),%%edx\n"
+		       "9:     movl %%eax, 8(%3)\n"
+		       "10:    movl %%edx, 12(%3)\n"
+		       "11:    movl 16(%4), %%eax\n"
+		       "12:    movl 20(%4), %%edx\n"
+		       "13:    movl %%eax, 16(%3)\n"
+		       "14:    movl %%edx, 20(%3)\n"
+		       "15:    movl 24(%4), %%eax\n"
+		       "16:    movl 28(%4), %%edx\n"
+		       "17:    movl %%eax, 24(%3)\n"
+		       "18:    movl %%edx, 28(%3)\n"
+		       "19:    movl 32(%4), %%eax\n"
+		       "20:    movl 36(%4), %%edx\n"
+		       "21:    movl %%eax, 32(%3)\n"
+		       "22:    movl %%edx, 36(%3)\n"
+		       "23:    movl 40(%4), %%eax\n"
+		       "24:    movl 44(%4), %%edx\n"
+		       "25:    movl %%eax, 40(%3)\n"
+		       "26:    movl %%edx, 44(%3)\n"
+		       "27:    movl 48(%4), %%eax\n"
+		       "28:    movl 52(%4), %%edx\n"
+		       "29:    movl %%eax, 48(%3)\n"
+		       "30:    movl %%edx, 52(%3)\n"
+		       "31:    movl 56(%4), %%eax\n"
+		       "32:    movl 60(%4), %%edx\n"
+		       "33:    movl %%eax, 56(%3)\n"
+		       "34:    movl %%edx, 60(%3)\n"
+		       "       addl $-64, %0\n"
+		       "       addl $64, %4\n"
+		       "       addl $64, %3\n"
+		       "       cmpl $63, %0\n"
+		       "       ja  1b\n"
+		       "35:    movl  %0, %%eax\n"
+		       "       shrl  $2, %0\n"
+		       "       andl  $3, %%eax\n"
+		       "       cld\n"
+		       "99:    rep; movsl\n"
+		       "36:    movl %%eax, %0\n"
+		       "37:    rep; movsb\n"
+		       "100:\n"
+		       _ASM_EXTABLE_UA(1b, 100b)
+		       _ASM_EXTABLE_UA(2b, 100b)
+		       _ASM_EXTABLE_UA(3b, 100b)
+		       _ASM_EXTABLE_UA(4b, 100b)
+		       _ASM_EXTABLE_UA(5b, 100b)
+		       _ASM_EXTABLE_UA(6b, 100b)
+		       _ASM_EXTABLE_UA(7b, 100b)
+		       _ASM_EXTABLE_UA(8b, 100b)
+		       _ASM_EXTABLE_UA(9b, 100b)
+		       _ASM_EXTABLE_UA(10b, 100b)
+		       _ASM_EXTABLE_UA(11b, 100b)
+		       _ASM_EXTABLE_UA(12b, 100b)
+		       _ASM_EXTABLE_UA(13b, 100b)
+		       _ASM_EXTABLE_UA(14b, 100b)
+		       _ASM_EXTABLE_UA(15b, 100b)
+		       _ASM_EXTABLE_UA(16b, 100b)
+		       _ASM_EXTABLE_UA(17b, 100b)
+		       _ASM_EXTABLE_UA(18b, 100b)
+		       _ASM_EXTABLE_UA(19b, 100b)
+		       _ASM_EXTABLE_UA(20b, 100b)
+		       _ASM_EXTABLE_UA(21b, 100b)
+		       _ASM_EXTABLE_UA(22b, 100b)
+		       _ASM_EXTABLE_UA(23b, 100b)
+		       _ASM_EXTABLE_UA(24b, 100b)
+		       _ASM_EXTABLE_UA(25b, 100b)
+		       _ASM_EXTABLE_UA(26b, 100b)
+		       _ASM_EXTABLE_UA(27b, 100b)
+		       _ASM_EXTABLE_UA(28b, 100b)
+		       _ASM_EXTABLE_UA(29b, 100b)
+		       _ASM_EXTABLE_UA(30b, 100b)
+		       _ASM_EXTABLE_UA(31b, 100b)
+		       _ASM_EXTABLE_UA(32b, 100b)
+		       _ASM_EXTABLE_UA(33b, 100b)
+		       _ASM_EXTABLE_UA(34b, 100b)
+		       _ASM_EXTABLE_UA(35b, 100b)
+		       _ASM_EXTABLE_UA(36b, 100b)
+		       _ASM_EXTABLE_UA(37b, 100b)
+		       _ASM_EXTABLE_TYPE_REG(99b, 100b, EX_TYPE_UCOPY_LEN4, %%eax)
+		       : "=&c"(size), "=&D" (d0), "=&S" (d1)
+		       :  "1"(to), "2"(from), "0"(size)
+		       : "eax", "edx", "memory");
+	return size;
+}
+
+static unsigned long __copy_user_intel_nocache(void *to,
+				const void __user *from, unsigned long size)
+{
+	int d0, d1;
+
+	__asm__ __volatile__(
+	       "        .align 2,0x90\n"
+	       "0:      movl 32(%4), %%eax\n"
+	       "        cmpl $67, %0\n"
+	       "        jbe 2f\n"
+	       "1:      movl 64(%4), %%eax\n"
+	       "        .align 2,0x90\n"
+	       "2:      movl 0(%4), %%eax\n"
+	       "21:     movl 4(%4), %%edx\n"
+	       "        movnti %%eax, 0(%3)\n"
+	       "        movnti %%edx, 4(%3)\n"
+	       "3:      movl 8(%4), %%eax\n"
+	       "31:     movl 12(%4),%%edx\n"
+	       "        movnti %%eax, 8(%3)\n"
+	       "        movnti %%edx, 12(%3)\n"
+	       "4:      movl 16(%4), %%eax\n"
+	       "41:     movl 20(%4), %%edx\n"
+	       "        movnti %%eax, 16(%3)\n"
+	       "        movnti %%edx, 20(%3)\n"
+	       "10:     movl 24(%4), %%eax\n"
+	       "51:     movl 28(%4), %%edx\n"
+	       "        movnti %%eax, 24(%3)\n"
+	       "        movnti %%edx, 28(%3)\n"
+	       "11:     movl 32(%4), %%eax\n"
+	       "61:     movl 36(%4), %%edx\n"
+	       "        movnti %%eax, 32(%3)\n"
+	       "        movnti %%edx, 36(%3)\n"
+	       "12:     movl 40(%4), %%eax\n"
+	       "71:     movl 44(%4), %%edx\n"
+	       "        movnti %%eax, 40(%3)\n"
+	       "        movnti %%edx, 44(%3)\n"
+	       "13:     movl 48(%4), %%eax\n"
+	       "81:     movl 52(%4), %%edx\n"
+	       "        movnti %%eax, 48(%3)\n"
+	       "        movnti %%edx, 52(%3)\n"
+	       "14:     movl 56(%4), %%eax\n"
+	       "91:     movl 60(%4), %%edx\n"
+	       "        movnti %%eax, 56(%3)\n"
+	       "        movnti %%edx, 60(%3)\n"
+	       "        addl $-64, %0\n"
+	       "        addl $64, %4\n"
+	       "        addl $64, %3\n"
+	       "        cmpl $63, %0\n"
+	       "        ja  0b\n"
+	       "        sfence \n"
+	       "5:      movl  %0, %%eax\n"
+	       "        shrl  $2, %0\n"
+	       "        andl $3, %%eax\n"
+	       "        cld\n"
+	       "6:      rep; movsl\n"
+	       "        movl %%eax,%0\n"
+	       "7:      rep; movsb\n"
+	       "8:\n"
+	       _ASM_EXTABLE_UA(0b, 8b)
+	       _ASM_EXTABLE_UA(1b, 8b)
+	       _ASM_EXTABLE_UA(2b, 8b)
+	       _ASM_EXTABLE_UA(21b, 8b)
+	       _ASM_EXTABLE_UA(3b, 8b)
+	       _ASM_EXTABLE_UA(31b, 8b)
+	       _ASM_EXTABLE_UA(4b, 8b)
+	       _ASM_EXTABLE_UA(41b, 8b)
+	       _ASM_EXTABLE_UA(10b, 8b)
+	       _ASM_EXTABLE_UA(51b, 8b)
+	       _ASM_EXTABLE_UA(11b, 8b)
+	       _ASM_EXTABLE_UA(61b, 8b)
+	       _ASM_EXTABLE_UA(12b, 8b)
+	       _ASM_EXTABLE_UA(71b, 8b)
+	       _ASM_EXTABLE_UA(13b, 8b)
+	       _ASM_EXTABLE_UA(81b, 8b)
+	       _ASM_EXTABLE_UA(14b, 8b)
+	       _ASM_EXTABLE_UA(91b, 8b)
+	       _ASM_EXTABLE_TYPE_REG(6b, 8b, EX_TYPE_UCOPY_LEN4, %%eax)
+	       _ASM_EXTABLE_UA(7b, 8b)
+	       : "=&c"(size), "=&D" (d0), "=&S" (d1)
+	       :  "1"(to), "2"(from), "0"(size)
+	       : "eax", "edx", "memory");
+	return size;
+}
+
+#else
+
+/*
+ * Leave these declared but undefined.  They should not be any references to
+ * them
+ */
+unsigned long __copy_user_intel(void __user *to, const void *from,
+					unsigned long size);
+#endif /* CONFIG_X86_INTEL_USERCOPY */
+
+/* Generic arbitrary sized copy.  */
+#define __copy_user(to, from, size)					\
+do {									\
+	int __d0, __d1, __d2;						\
+	__asm__ __volatile__(						\
+		"	cmp  $7,%0\n"					\
+		"	jbe  1f\n"					\
+		"	movl %1,%0\n"					\
+		"	negl %0\n"					\
+		"	andl $7,%0\n"					\
+		"	subl %0,%3\n"					\
+		"4:	rep; movsb\n"					\
+		"	movl %3,%0\n"					\
+		"	shrl $2,%0\n"					\
+		"	andl $3,%3\n"					\
+		"	.align 2,0x90\n"				\
+		"0:	rep; movsl\n"					\
+		"	movl %3,%0\n"					\
+		"1:	rep; movsb\n"					\
+		"2:\n"							\
+		_ASM_EXTABLE_TYPE_REG(4b, 2b, EX_TYPE_UCOPY_LEN1, %3)	\
+		_ASM_EXTABLE_TYPE_REG(0b, 2b, EX_TYPE_UCOPY_LEN4, %3)	\
+		_ASM_EXTABLE_UA(1b, 2b)					\
+		: "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2)	\
+		: "3"(size), "0"(size), "1"(to), "2"(from)		\
+		: "memory");						\
+} while (0)
+
+unsigned long __copy_user_ll(void *to, const void *from, unsigned long n)
+{
+	__uaccess_begin_nospec();
+	if (movsl_is_ok(to, from, n))
+		__copy_user(to, from, n);
+	else
+		n = __copy_user_intel(to, from, n);
+	__uaccess_end();
+	return n;
+}
+EXPORT_SYMBOL(__copy_user_ll);
+
+unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *from,
+					unsigned long n)
+{
+	__uaccess_begin_nospec();
+#ifdef CONFIG_X86_INTEL_USERCOPY
+	if (n > 64 && static_cpu_has(X86_FEATURE_XMM2))
+		n = __copy_user_intel_nocache(to, from, n);
+	else
+		__copy_user(to, from, n);
+#else
+	__copy_user(to, from, n);
+#endif
+	__uaccess_end();
+	return n;
+}
+EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero);