[ Upstream commit 493e6cb63a21e9f009dc4c209fd311f2bb777656 ]

The of_overlay_mutex_unlock() was accidentally deleted if "of_root" is
NULL.  Change this to a goto unlock.

Fixes: d1eabd218ede ("of: unittest: treat missing of_root as error instead of fixing up")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/aBHZ1DvXiBcZkWmk@stanley.mountain
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Pull devicetree updates from Rob Herring:
 "DT core:

   - Fix ref counting errors in interrupt parsing code

   - Allow "nonposted-mmio" property per device and on non-Apple h/w

   - Use typed accessors in platform driver code

   - Fix mismatch between DT MAX_PHANDLE_ARGS and
     NR_FWNODE_REFERENCE_ARGS and increase the maximum number args

   - Rework of_resolve_phandles() to use __free() cleanup and fix ref
     count error

   - Use of_prop_cmp() in a few more places

   - Improve make_fit.py script error handling

  DT bindings:

   - Update DT property ordering rules for properties within groups
     (i.e. common suffix)

   - Update DT submitting-patches doc to cover sending .dts patches and
     SoC maintainer rules on being warning free against linux-next

   - Add ti,tps53681, ti,tps53681, Maxim max15301, max15303, and
     max20751 to trivial devices

   - Add Renesas RZ/V2H(P) and Allwinner H616 support to Arm Mali
     Bifrost GPU. Add Samsung exynos7870 support to Arm Mail Midgard.

   - Rework qcom,ebi2 and samsung,exynos4210-sram memory controller
     bindings to split child node properties. Fix the LAN9115 binding to
     use the child node schema so all properties are documented.

   - Convert nxp,lpc3220-mic and Altera ECC manager bindings to schema

   - Fix some issues with LVDS display panels causing validation
     warnings

   - Drop some obsolete parts of Xilinx bindings"

* tag 'devicetree-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (48 commits)
  scripts/make_fit: Print DT name before libfdt errors
  dt-bindings: edac: altera: socfpga: Convert to YAML
  dt-bindings: pps: gpio: Correct indentation and style in DTS example
  media: dt-bindings: mediatek,vcodec-encoder: Drop assigned-clock properties
  of: address: Allow to specify nonposted-mmio per-device
  of: address: Expand nonposted-mmio to non-Apple Silicon platforms
  docs: dt-bindings: Specify ordering for properties within groups
  dt-bindings: gpu: arm,mali-midgard: add exynos7870-mali compatible
  of: Move of_prop_val_eq() next to the single user
  of/platform: Use typed accessors rather than of_get_property()
  dt-bindings: trivial-devices: Add Maxim max15301, max15303, and max20751
  dt-bindings: fsi: ibm,p9-scom: Add "ibm,fsi2pib" compatible
  dt-bindings: memory-controllers: qcom,ebi2: Enforce child props
  dt-bindings: memory-controllers: samsung,exynos4210-srom: Enforce child props
  dt-bindings: display: mitsubishi,aa104xd12: Adjust allowed and required properties
  dt-bindings: display: mitsubishi,aa104xd12: Allow jeida-18 for data-mapping
  dt-bindings: interrupt-controller: Convert nxp,lpc3220-mic.txt to yaml format
  docs: process: maintainer-soc-clean-dts: linux-next is decisive
  docs: dt: submitting-patches: Document sending DTS patches
  of: Align macro MAX_PHANDLE_ARGS with NR_FWNODE_REFERENCE_ARGS
  ...

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Continue Netlink conversions to per-namespace RTNL lock
     (IPv4 routing, routing rules, routing next hops, ARP ioctls)

   - Continue extending the use of netdev instance locks. As a driver
     opt-in protect queue operations and (in due course) ethtool
     operations with the instance lock and not RTNL lock.

   - Support collecting TCP timestamps (data submitted, sent, acked) in
     BPF, allowing for transparent (to the application) and lower
     overhead tracking of TCP RPC performance.

   - Tweak existing networking Rx zero-copy infra to support zero-copy
     Rx via io_uring.

   - Optimize MPTCP performance in single subflow mode by 29%.

   - Enable GRO on packets which went thru XDP CPU redirect (were queued
     for processing on a different CPU). Improving TCP stream
     performance up to 2x.

   - Improve performance of contended connect() by 200% by searching for
     an available 4-tuple under RCU rather than a spin lock. Bring an
     additional 229% improvement by tweaking hash distribution.

   - Avoid unconditionally touching sk_tsflags on RX, improving
     performance under UDP flood by as much as 10%.

   - Avoid skb_clone() dance in ping_rcv() to improve performance under
     ping flood.

   - Avoid FIB lookup in netfilter if socket is available, 20% perf win.

   - Rework network device creation (in-kernel) API to more clearly
     identify network namespaces and their roles. There are up to 4
     namespace roles but we used to have just 2 netns pointer arguments,
     interpreted differently based on context.

   - Use sysfs_break_active_protection() instead of trylock to avoid
     deadlocks between unregistering objects and sysfs access.

   - Add a new sysctl and sockopt for capping max retransmit timeout in
     TCP.

   - Support masking port and DSCP in routing rule matches.

   - Support dumping IPv4 multicast addresses with RTM_GETMULTICAST.

   - Support specifying at what time packet should be sent on AF_XDP
     sockets.

   - Expose TCP ULP diagnostic info (for TLS and MPTCP) to non-admin
     users.

   - Add Netlink YAML spec for WiFi (nl80211) and conntrack.

   - Introduce EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() for symbols
     which only need to be exported when IPv6 support is built as a
     module.

   - Age FDB entries based on Rx not Tx traffic in VxLAN, similar to
     normal bridging.

   - Allow users to specify source port range for GENEVE tunnels.

   - netconsole: allow attaching kernel release, CPU ID and task name to
     messages as metadata

  Driver API:

   - Continue rework / fixing of Energy Efficient Ethernet (EEE) across
     the SW layers. Delegate the responsibilities to phylink where
     possible. Improve its handling in phylib.

   - Support symmetric OR-XOR RSS hashing algorithm.

   - Support tracking and preserving IRQ affinity by NAPI itself.

   - Support loopback mode speed selection for interface selftests.

  Device drivers:

   - Remove the IBM LCS driver for s390

   - Remove the sb1000 cable modem driver

   - Add support for SFP module access over SMBus

   - Add MCTP transport driver for MCTP-over-USB

   - Enable XDP metadata support in multiple drivers

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - add PCIe TLP Processing Hints (TPH) support for new AMD
           platforms
         - support dumping RoCE queue state for debug
         - opt into instance locking
      - Intel (100G, ice, idpf):
         - ice: rework MSI-X IRQ management and distribution
         - ice: support for E830 devices
         - iavf: add support for Rx timestamping
         - iavf: opt into instance locking
      - nVidia/Mellanox:
         - mlx4: use page pool memory allocator for Rx
         - mlx5: support for one PTP device per hardware clock
         - mlx5: support for 200Gbps per-lane link modes
         - mlx5: move IPSec policy check after decryption
      - AMD/Solarflare:
         - support FW flashing via devlink
      - Cisco (enic):
         - use page pool memory allocator for Rx
         - enable 32, 64 byte CQEs
         - get max rx/tx ring size from the device
      - Meta (fbnic):
         - support flow steering and RSS configuration
         - report queue stats
         - support TCP segmentation
         - support IRQ coalescing
         - support ring size configuration
      - Marvell/Cavium:
         - support AF_XDP
      - Wangxun:
         - support for PTP clock and timestamping
      - Huawei (hibmcge):
         - checksum offload
         - add more statistics

   - Ethernet virtual:
      - VirtIO net:
         - aggressively suppress Tx completions, improve perf by 96%
           with 1 CPU and 55% with 2 CPUs
         - expose NAPI to IRQ mapping and persist NAPI settings
      - Google (gve):
         - support XDP in DQO RDA Queue Format
         - opt into instance locking
      - Microsoft vNIC:
         - support BIG TCP

   - Ethernet NICs consumer, and embedded:
      - Synopsys (stmmac):
         - cleanup Tx and Tx clock setting and other link-focused
           cleanups
         - enable SGMII and 2500BASEX mode switching for Intel platforms
         - support Sophgo SG2044
      - Broadcom switches (b53):
         - support for BCM53101
      - TI:
         - iep: add perout configuration support
         - icssg: support XDP
      - Cadence (macb):
         - implement BQL
      - Xilinx (axinet):
         - support dynamic IRQ moderation and changing coalescing at
           runtime
         - implement BQL
         - report standard stats
      - MediaTek:
         - support phylink managed EEE
      - Intel:
         - igc: don't restart the interface on every XDP program change
      - RealTek (r8169):
         - support reading registers of internal PHYs directly
         - increase max jumbo packet size on RTL8125/RTL8126
      - Airoha:
         - support for RISC-V NPU packet processing unit
         - enable scatter-gather and support MTU up to 9kB
      - Tehuti (tn40xx):
         - support cards with TN4010 MAC and an Aquantia AQR105 PHY

   - Ethernet PHYs:
      - support for TJA1102S, TJA1121
      - dp83tg720: add randomized polling intervals for link detection
      - dp83822: support changing the transmit amplitude voltage
      - support for LEDs on 88q2xxx

   - CAN:
      - canxl: support Remote Request Substitution bit access
      - flexcan: add S32G2/S32G3 SoC

   - WiFi:
      - remove cooked monitor support
      - strict mode for better AP testing
      - basic EPCS support
      - OMI RX bandwidth reduction support
      - batman-adv: add support for jumbo frames

   - WiFi drivers:
      - RealTek (rtw88):
         - support RTL8814AE and RTL8814AU
      - RealTek (rtw89):
         - switch using wiphy_lock and wiphy_work
         - add BB context to manipulate two PHY as preparation of MLO
         - improve BT-coexistence mechanism to play A2DP smoothly
      - Intel (iwlwifi):
         - add new iwlmld sub-driver for latest HW/FW combinations
      - MediaTek (mt76):
         - preparation for mt7996 Multi-Link Operation (MLO) support
      - Qualcomm/Atheros (ath12k):
         - continued work on MLO
      - Silabs (wfx):
         - Wake-on-WLAN support

   - Bluetooth:
      - add support for skb TX SND/COMPLETION timestamping
      - hci_core: enable buffer flow control for SCO/eSCO
      - coredump: log devcd dumps into the monitor

   - Bluetooth drivers:
      - intel: add support to configure TX power
      - nxp: handle bootloader error during cmd5 and cmd7"

* tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1681 commits)
  unix: fix up for "apparmor: add fine grained af_unix mediation"
  mctp: Fix incorrect tx flow invalidation condition in mctp-i2c
  net: usb: asix: ax88772: Increase phy_name size
  net: phy: Introduce PHY_ID_SIZE — minimum size for PHY ID string
  net: libwx: fix Tx L4 checksum
  net: libwx: fix Tx descriptor content for some tunnel packets
  atm: Fix NULL pointer dereference
  net: tn40xx: add pci-id of the aqr105-based Tehuti TN4010 cards
  net: tn40xx: prepare tn40xx driver to find phy of the TN9510 card
  net: tn40xx: create swnode for mdio and aqr105 phy and add to mdiobus
  net: phy: aquantia: add essential functions to aqr105 driver
  net: phy: aquantia: search for firmware-name in fwnode
  net: phy: aquantia: add probe function to aqr105 for firmware loading
  net: phy: Add swnode support to mdiobus_scan
  gve: add XDP DROP and PASS support for DQ
  gve: update XDP allocation path support RX buffer posting
  gve: merge packet buffer size fields
  gve: update GQ RX to use buf_size
  gve: introduce config-based allocation for XDP
  gve: remove xdp_xsk_done and xdp_xsk_wakeup statistics
  ...

Pull iommu updates from Joerg Roedel:
 "Core iommufd dependencies from Jason:
   - Change the iommufd fault handle into an always present hwpt handle
     in the domain
   - Give iommufd its own SW_MSI implementation along with some IRQ
     layer rework
   - Improvements to the handle attach API

  Core fixes for probe-issues from Robin

  Intel VT-d changes:
   - Checking for SVA support in domain allocation and attach paths
   - Move PCI ATS and PRI configuration into probe paths
   - Fix a pentential hang on reboot -f
   - Miscellaneous cleanups

  AMD-Vi changes:
   - Support for up to 2k IRQs per PCI device function
   - Set of smaller fixes

  ARM-SMMU changes:
   - SMMUv2 devicetree binding updates for Qualcomm implementations
     (QCS8300 GPU and MSM8937)
   - Clean up SMMUv2 runtime PM implementation to help with wider rework
     of pm_runtime_put_autosuspend()

  Rockchip driver changes:
   - Driver adjustments for recent DT probing changes

  S390 IOMMU changes:
   - Support for IOMMU passthrough

  Apple Dart changes:
   - Driver adjustments to meet ISP device requirements
   - Null-ptr deref fix
   - Disable subpage protection for DART 1"

* tag 'iommu-updates-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (54 commits)
  iommu/vt-d: Fix possible circular locking dependency
  iommu/vt-d: Don't clobber posted vCPU IRTE when host IRQ affinity changes
  iommu/vt-d: Put IRTE back into posted MSI mode if vCPU posting is disabled
  iommu: apple-dart: fix potential null pointer deref
  iommu/rockchip: Retire global dma_dev workaround
  iommu/rockchip: Register in a sensible order
  iommu/rockchip: Allocate per-device data sensibly
  iommu/mediatek-v1: Support COMPILE_TEST
  iommu/amd: Enable support for up to 2K interrupts per function
  iommu/amd: Rename DTE_INTTABLEN* and MAX_IRQS_PER_TABLE macro
  iommu/amd: Replace slab cache allocator with page allocator
  iommu/amd: Introduce generic function to set multibit feature value
  iommu: Don't warn prematurely about dodgy probes
  iommu/arm-smmu: Set rpm auto_suspend once during probe
  dt-bindings: arm-smmu: Document QCS8300 GPU SMMU
  iommu: Get DT/ACPI parsing into the proper probe path
  iommu: Keep dev->iommu state consistent
  iommu: Resolve ops in iommu_init_device()
  iommu: Handle race with default domain setup
  iommu: Unexport iommu_fwspec_free()
  ...

Certain IP blocks may strictly require/expect a nE mapping to function
correctly, while others may be fine without it (which is preferred for
performance reasons).

Allow specifying nonposted-mmio on a per-device basis.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250319-topic-nonposted_mmio-v1-2-dfb886fbd15f@oss.qualcomm.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

The nE memory attribute may be utilized by various implementations,
not limited to Apple Silicon platforms.

Drop the early CONFIG_ARCH_APPLE check.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250319-topic-nonposted_mmio-v1-1-dfb886fbd15f@oss.qualcomm.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

There is an of_property_read_u32_index and of_property_read_u64_index.
This patch adds a similar helper for u16.

Signed-off-by: Ernest Van Hoecke <ernest.vanhoecke@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20250319142059.46692-2-francesco@dolcini.it
Signed-off-by: Mark Brown <broonie@kernel.org>

There's only a single user of of_prop_val_eq(), so move it to overlay.c.
This removes one case of exposing struct property outside of the DT
code.

Signed-off-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250312212947.1067337-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Use the typed of_property_* functions rather than of_get_property()
which leaks pointers to DT data without any control of the lifetime.

Signed-off-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250312212937.1067088-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>