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, 209 insertions, 0 deletions

diff --git a/drivers/accessibility/speakup/keyhelp.c b/drivers/accessibility/speakup/keyhelp.c
new file mode 100644
index 000000000..822ceac83
--- /dev/null
+++ b/drivers/accessibility/speakup/keyhelp.c
@@ -0,0 +1,209 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* speakup_keyhelp.c
+ * help module for speakup
+ *
+ *written by David Borowski.
+ *
+ *  Copyright (C) 2003  David Borowski.
+ */
+
+#include <linux/keyboard.h>
+#include "spk_priv.h"
+#include "speakup.h"
+
+#define MAXFUNCS 130
+#define MAXKEYS 256
+static const int num_key_names = MSG_KEYNAMES_END - MSG_KEYNAMES_START + 1;
+static u_short key_offsets[MAXFUNCS], key_data[MAXKEYS];
+static u_short masks[] = { 32, 16, 8, 4, 2, 1 };
+
+static short letter_offsets[26] = {
+	-1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1 };
+
+static u_char funcvals[] = {
+	ATTRIB_BLEEP_DEC, ATTRIB_BLEEP_INC, BLEEPS_DEC, BLEEPS_INC,
+	SAY_FIRST_CHAR, SAY_LAST_CHAR, SAY_CHAR, SAY_CHAR_NUM,
+	SAY_NEXT_CHAR, SAY_PHONETIC_CHAR, SAY_PREV_CHAR, SPEAKUP_PARKED,
+	SPEAKUP_CUT, EDIT_DELIM, EDIT_EXNUM, EDIT_MOST,
+	EDIT_REPEAT, EDIT_SOME, SPEAKUP_GOTO, BOTTOM_EDGE,
+	LEFT_EDGE, RIGHT_EDGE, TOP_EDGE, SPEAKUP_HELP,
+	SAY_LINE, SAY_NEXT_LINE, SAY_PREV_LINE, SAY_LINE_INDENT,
+	SPEAKUP_PASTE, PITCH_DEC, PITCH_INC, PUNCT_DEC,
+	PUNCT_INC, PUNC_LEVEL_DEC, PUNC_LEVEL_INC, SPEAKUP_QUIET,
+	RATE_DEC, RATE_INC, READING_PUNC_DEC, READING_PUNC_INC,
+	SAY_ATTRIBUTES, SAY_FROM_LEFT, SAY_FROM_TOP, SAY_POSITION,
+	SAY_SCREEN, SAY_TO_BOTTOM, SAY_TO_RIGHT, SPK_KEY,
+	SPK_LOCK, SPEAKUP_OFF, SPEECH_KILL, SPELL_DELAY_DEC,
+	SPELL_DELAY_INC, SPELL_WORD, SPELL_PHONETIC, TONE_DEC,
+	TONE_INC, VOICE_DEC, VOICE_INC, VOL_DEC,
+	VOL_INC, CLEAR_WIN, SAY_WIN, SET_WIN,
+	ENABLE_WIN, SAY_WORD, SAY_NEXT_WORD, SAY_PREV_WORD, 0
+};
+
+static u_char *state_tbl;
+static int cur_item, nstates;
+
+static void build_key_data(void)
+{
+	u_char *kp, counters[MAXFUNCS], ch, ch1;
+	u_short *p_key, key;
+	int i, offset = 1;
+
+	nstates = (int)(state_tbl[-1]);
+	memset(counters, 0, sizeof(counters));
+	memset(key_offsets, 0, sizeof(key_offsets));
+	kp = state_tbl + nstates + 1;
+	while (*kp++) {
+		/* count occurrences of each function */
+		for (i = 0; i < nstates; i++, kp++) {
+			if (!*kp)
+				continue;
+			if ((state_tbl[i] & 16) != 0 && *kp == SPK_KEY)
+				continue;
+			counters[*kp]++;
+		}
+	}
+	for (i = 0; i < MAXFUNCS; i++) {
+		if (counters[i] == 0)
+			continue;
+		key_offsets[i] = offset;
+		offset += (counters[i] + 1);
+		if (offset >= MAXKEYS)
+			break;
+	}
+/* leave counters set so high keycodes come first.
+ * this is done so num pad and other extended keys maps are spoken before
+ * the alpha with speakup type mapping.
+ */
+	kp = state_tbl + nstates + 1;
+	while ((ch = *kp++)) {
+		for (i = 0; i < nstates; i++) {
+			ch1 = *kp++;
+			if (!ch1)
+				continue;
+			if ((state_tbl[i] & 16) != 0 && ch1 == SPK_KEY)
+				continue;
+			key = (state_tbl[i] << 8) + ch;
+			counters[ch1]--;
+			offset = key_offsets[ch1];
+			if (!offset)
+				continue;
+			p_key = key_data + offset + counters[ch1];
+			*p_key = key;
+		}
+	}
+}
+
+static void say_key(int key)
+{
+	int i, state = key >> 8;
+
+	key &= 0xff;
+	for (i = 0; i < 6; i++) {
+		if (state & masks[i])
+			synth_printf(" %s", spk_msg_get(MSG_STATES_START + i));
+	}
+	if ((key > 0) && (key <= num_key_names))
+		synth_printf(" %s\n",
+			     spk_msg_get(MSG_KEYNAMES_START + (key - 1)));
+}
+
+static int help_init(void)
+{
+	char start = SPACE;
+	int i;
+	int num_funcs = MSG_FUNCNAMES_END - MSG_FUNCNAMES_START + 1;
+
+	state_tbl = spk_our_keys[0] + SHIFT_TBL_SIZE + 2;
+	for (i = 0; i < num_funcs; i++) {
+		char *cur_funcname = spk_msg_get(MSG_FUNCNAMES_START + i);
+
+		if (start == *cur_funcname)
+			continue;
+		start = *cur_funcname;
+		letter_offsets[(start & 31) - 1] = i;
+	}
+	return 0;
+}
+
+int spk_handle_help(struct vc_data *vc, u_char type, u_char ch, u_short key)
+{
+	int i, n;
+	char *name;
+	u_char func, *kp;
+	u_short *p_keys, val;
+
+	if (letter_offsets[0] == -1)
+		help_init();
+	if (type == KT_LATIN) {
+		if (ch == SPACE) {
+			spk_special_handler = NULL;
+			synth_printf("%s\n", spk_msg_get(MSG_LEAVING_HELP));
+			return 1;
+		}
+		ch |= 32; /* lower case */
+		if (ch < 'a' || ch > 'z')
+			return -1;
+		if (letter_offsets[ch - 'a'] == -1) {
+			synth_printf(spk_msg_get(MSG_NO_COMMAND), ch);
+			synth_printf("\n");
+			return 1;
+		}
+		cur_item = letter_offsets[ch - 'a'];
+	} else if (type == KT_CUR) {
+		if (ch == 0 &&
+		    (MSG_FUNCNAMES_START + cur_item + 1) <= MSG_FUNCNAMES_END)
+			cur_item++;
+		else if (ch == 3 && cur_item > 0)
+			cur_item--;
+		else
+			return -1;
+	} else if (type == KT_SPKUP && ch == SPEAKUP_HELP &&
+		   !spk_special_handler) {
+		spk_special_handler = spk_handle_help;
+		synth_printf("%s\n", spk_msg_get(MSG_HELP_INFO));
+		build_key_data(); /* rebuild each time in case new mapping */
+		return 1;
+	} else {
+		name = NULL;
+		if ((type != KT_SPKUP) && (key > 0) && (key <= num_key_names)) {
+			synth_printf("%s\n",
+				     spk_msg_get(MSG_KEYNAMES_START + key - 1));
+			return 1;
+		}
+		for (i = 0; funcvals[i] != 0 && !name; i++) {
+			if (ch == funcvals[i])
+				name = spk_msg_get(MSG_FUNCNAMES_START + i);
+		}
+		if (!name)
+			return -1;
+		kp = spk_our_keys[key] + 1;
+		for (i = 0; i < nstates; i++) {
+			if (ch == kp[i])
+				break;
+		}
+		key += (state_tbl[i] << 8);
+		say_key(key);
+		synth_printf(spk_msg_get(MSG_KEYDESC), name);
+		synth_printf("\n");
+		return 1;
+	}
+	name = spk_msg_get(MSG_FUNCNAMES_START + cur_item);
+	func = funcvals[cur_item];
+	synth_printf("%s", name);
+	if (key_offsets[func] == 0) {
+		synth_printf(" %s\n", spk_msg_get(MSG_IS_UNASSIGNED));
+		return 1;
+	}
+	p_keys = key_data + key_offsets[func];
+	for (n = 0; p_keys[n]; n++) {
+		val = p_keys[n];
+		if (n > 0)
+			synth_printf("%s ", spk_msg_get(MSG_DISJUNCTION));
+		say_key(val);
+	}
+	return 1;
+}