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, 272 insertions, 0 deletions

diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c
new file mode 100644
index 000000000..871856c69
--- /dev/null
+++ b/fs/udf/truncate.c
@@ -0,0 +1,272 @@
+/*
+ * truncate.c
+ *
+ * PURPOSE
+ *	Truncate handling routines for the OSTA-UDF(tm) filesystem.
+ *
+ * COPYRIGHT
+ *	This file is distributed under the terms of the GNU General Public
+ *	License (GPL). Copies of the GPL can be obtained from:
+ *		ftp://prep.ai.mit.edu/pub/gnu/GPL
+ *	Each contributing author retains all rights to their own work.
+ *
+ *  (C) 1999-2004 Ben Fennema
+ *  (C) 1999 Stelias Computing Inc
+ *
+ * HISTORY
+ *
+ *  02/24/99 blf  Created.
+ *
+ */
+
+#include "udfdecl.h"
+#include <linux/fs.h>
+#include <linux/mm.h>
+
+#include "udf_i.h"
+#include "udf_sb.h"
+
+static void extent_trunc(struct inode *inode, struct extent_position *epos,
+			 struct kernel_lb_addr *eloc, int8_t etype, uint32_t elen,
+			 uint32_t nelen)
+{
+	struct kernel_lb_addr neloc = {};
+	int last_block = (elen + inode->i_sb->s_blocksize - 1) >>
+		inode->i_sb->s_blocksize_bits;
+	int first_block = (nelen + inode->i_sb->s_blocksize - 1) >>
+		inode->i_sb->s_blocksize_bits;
+
+	if (nelen) {
+		if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
+			udf_free_blocks(inode->i_sb, inode, eloc, 0,
+					last_block);
+			etype = (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30);
+		} else
+			neloc = *eloc;
+		nelen = (etype << 30) | nelen;
+	}
+
+	if (elen != nelen) {
+		udf_write_aext(inode, epos, &neloc, nelen, 0);
+		if (last_block > first_block) {
+			if (etype == (EXT_RECORDED_ALLOCATED >> 30))
+				mark_inode_dirty(inode);
+
+			if (etype != (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
+				udf_free_blocks(inode->i_sb, inode, eloc,
+						first_block,
+						last_block - first_block);
+		}
+	}
+}
+
+/*
+ * Truncate the last extent to match i_size. This function assumes
+ * that preallocation extent is already truncated.
+ */
+void udf_truncate_tail_extent(struct inode *inode)
+{
+	struct extent_position epos = {};
+	struct kernel_lb_addr eloc;
+	uint32_t elen, nelen;
+	uint64_t lbcount = 0;
+	int8_t etype = -1, netype;
+	int adsize;
+	struct udf_inode_info *iinfo = UDF_I(inode);
+
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ||
+	    inode->i_size == iinfo->i_lenExtents)
+		return;
+	/* Are we going to delete the file anyway? */
+	if (inode->i_nlink == 0)
+		return;
+
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
+		adsize = sizeof(struct short_ad);
+	else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
+		adsize = sizeof(struct long_ad);
+	else
+		BUG();
+
+	/* Find the last extent in the file */
+	while ((netype = udf_next_aext(inode, &epos, &eloc, &elen, 1)) != -1) {
+		etype = netype;
+		lbcount += elen;
+		if (lbcount > inode->i_size) {
+			if (lbcount - inode->i_size >= inode->i_sb->s_blocksize)
+				udf_warn(inode->i_sb,
+					 "Too long extent after EOF in inode %u: i_size: %lld lbcount: %lld extent %u+%u\n",
+					 (unsigned)inode->i_ino,
+					 (long long)inode->i_size,
+					 (long long)lbcount,
+					 (unsigned)eloc.logicalBlockNum,
+					 (unsigned)elen);
+			nelen = elen - (lbcount - inode->i_size);
+			epos.offset -= adsize;
+			extent_trunc(inode, &epos, &eloc, etype, elen, nelen);
+			epos.offset += adsize;
+			if (udf_next_aext(inode, &epos, &eloc, &elen, 1) != -1)
+				udf_err(inode->i_sb,
+					"Extent after EOF in inode %u\n",
+					(unsigned)inode->i_ino);
+			break;
+		}
+	}
+	/* This inode entry is in-memory only and thus we don't have to mark
+	 * the inode dirty */
+	iinfo->i_lenExtents = inode->i_size;
+	brelse(epos.bh);
+}
+
+void udf_discard_prealloc(struct inode *inode)
+{
+	struct extent_position epos = {};
+	struct extent_position prev_epos = {};
+	struct kernel_lb_addr eloc;
+	uint32_t elen;
+	uint64_t lbcount = 0;
+	int8_t etype = -1;
+	struct udf_inode_info *iinfo = UDF_I(inode);
+	int bsize = 1 << inode->i_blkbits;
+
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ||
+	    ALIGN(inode->i_size, bsize) == ALIGN(iinfo->i_lenExtents, bsize))
+		return;
+
+	epos.block = iinfo->i_location;
+
+	/* Find the last extent in the file */
+	while (udf_next_aext(inode, &epos, &eloc, &elen, 0) != -1) {
+		brelse(prev_epos.bh);
+		prev_epos = epos;
+		if (prev_epos.bh)
+			get_bh(prev_epos.bh);
+
+		etype = udf_next_aext(inode, &epos, &eloc, &elen, 1);
+		lbcount += elen;
+	}
+	if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
+		lbcount -= elen;
+		udf_delete_aext(inode, prev_epos);
+		udf_free_blocks(inode->i_sb, inode, &eloc, 0,
+				DIV_ROUND_UP(elen, 1 << inode->i_blkbits));
+	}
+	/* This inode entry is in-memory only and thus we don't have to mark
+	 * the inode dirty */
+	iinfo->i_lenExtents = lbcount;
+	brelse(epos.bh);
+	brelse(prev_epos.bh);
+}
+
+static void udf_update_alloc_ext_desc(struct inode *inode,
+				      struct extent_position *epos,
+				      u32 lenalloc)
+{
+	struct super_block *sb = inode->i_sb;
+	struct udf_sb_info *sbi = UDF_SB(sb);
+
+	struct allocExtDesc *aed = (struct allocExtDesc *) (epos->bh->b_data);
+	int len = sizeof(struct allocExtDesc);
+
+	aed->lengthAllocDescs =	cpu_to_le32(lenalloc);
+	if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT) || sbi->s_udfrev >= 0x0201)
+		len += lenalloc;
+
+	udf_update_tag(epos->bh->b_data, len);
+	mark_buffer_dirty_inode(epos->bh, inode);
+}
+
+/*
+ * Truncate extents of inode to inode->i_size. This function can be used only
+ * for making file shorter. For making file longer, udf_extend_file() has to
+ * be used.
+ */
+int udf_truncate_extents(struct inode *inode)
+{
+	struct extent_position epos;
+	struct kernel_lb_addr eloc, neloc = {};
+	uint32_t elen, nelen = 0, indirect_ext_len = 0, lenalloc;
+	int8_t etype;
+	struct super_block *sb = inode->i_sb;
+	sector_t first_block = inode->i_size >> sb->s_blocksize_bits, offset;
+	loff_t byte_offset;
+	int adsize;
+	struct udf_inode_info *iinfo = UDF_I(inode);
+
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
+		adsize = sizeof(struct short_ad);
+	else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
+		adsize = sizeof(struct long_ad);
+	else
+		BUG();
+
+	etype = inode_bmap(inode, first_block, &epos, &eloc, &elen, &offset);
+	byte_offset = (offset << sb->s_blocksize_bits) +
+		(inode->i_size & (sb->s_blocksize - 1));
+	if (etype == -1) {
+		/* We should extend the file? */
+		WARN_ON(byte_offset);
+		return 0;
+	}
+	epos.offset -= adsize;
+	extent_trunc(inode, &epos, &eloc, etype, elen, byte_offset);
+	epos.offset += adsize;
+	if (byte_offset)
+		lenalloc = epos.offset;
+	else
+		lenalloc = epos.offset - adsize;
+
+	if (!epos.bh)
+		lenalloc -= udf_file_entry_alloc_offset(inode);
+	else
+		lenalloc -= sizeof(struct allocExtDesc);
+
+	while ((etype = udf_current_aext(inode, &epos, &eloc,
+					 &elen, 0)) != -1) {
+		if (etype == (EXT_NEXT_EXTENT_ALLOCDESCS >> 30)) {
+			udf_write_aext(inode, &epos, &neloc, nelen, 0);
+			if (indirect_ext_len) {
+				/* We managed to free all extents in the
+				 * indirect extent - free it too */
+				BUG_ON(!epos.bh);
+				udf_free_blocks(sb, NULL, &epos.block,
+						0, indirect_ext_len);
+			} else if (!epos.bh) {
+				iinfo->i_lenAlloc = lenalloc;
+				mark_inode_dirty(inode);
+			} else
+				udf_update_alloc_ext_desc(inode,
+						&epos, lenalloc);
+			brelse(epos.bh);
+			epos.offset = sizeof(struct allocExtDesc);
+			epos.block = eloc;
+			epos.bh = sb_bread(sb,
+					udf_get_lb_pblock(sb, &eloc, 0));
+			/* Error reading indirect block? */
+			if (!epos.bh)
+				return -EIO;
+			if (elen)
+				indirect_ext_len =
+					(elen + sb->s_blocksize - 1) >>
+					sb->s_blocksize_bits;
+			else
+				indirect_ext_len = 1;
+		} else {
+			extent_trunc(inode, &epos, &eloc, etype, elen, 0);
+			epos.offset += adsize;
+		}
+	}
+
+	if (indirect_ext_len) {
+		BUG_ON(!epos.bh);
+		udf_free_blocks(sb, NULL, &epos.block, 0, indirect_ext_len);
+	} else if (!epos.bh) {
+		iinfo->i_lenAlloc = lenalloc;
+		mark_inode_dirty(inode);
+	} else
+		udf_update_alloc_ext_desc(inode, &epos, lenalloc);
+	iinfo->i_lenExtents = inode->i_size;
+
+	brelse(epos.bh);
+	return 0;
+}