USB4/Thunderbolt changes for v6.18 merge window

Hi Greg,

The following changes since commit 8f5ae30d69d7543eee0d70083daf4de8fe15d585:

Linux 6.17-rc1 (2025-08-10 19:41:16 +0300)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt.git tags/thunderbolt-for-v6.18-rc1

for you to fetch changes up to 67600ccfc4f38ebd331b9332ac94717bfbc87ea7:

thunderbolt: Fix use-after-free in tb_dp_dprx_work (2025-09-23 17:16:38 +0200)

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thunderbolt: Changes for v6.18 merge window

This includes following USB4/Thunderbolt changes for the v6.18 merge window:

- HMAC hashing improvements
- Switch to use Linux Foundation IDs for XDomain discovery
- Use is_pciehp instead of is_hotplug_bridge
- Fixes for various kernel-doc issues
- Fix use-after-free in DP tunneling error path.

I'm sending the UAF fix with this pull request because it came quite late and I would like to give it some exposure before it lands the mainline.

All these except the UAF fix have been in linux-next with no reported issues.

----------------------------------------------------------------
Alan Borzeszkowski (26):
thunderbolt: Update acpi.c function documentation
thunderbolt: Update cap.c function documentation
thunderbolt: Update clx.c function documentation
thunderbolt: Update ctl.c function documentation
thunderbolt: Add missing documentation in ctl.h tb_cfg_request struct
thunderbolt: Update dma_port.c function documentation
thunderbolt: Update domain.c function documentation
thunderbolt: Update eeprom.c function documentation
thunderbolt: Update lc.c function documentation
thunderbolt: Update nhi.c function documentation
thunderbolt: Add missing documentation in nhi_regs.h ring_desc structure
thunderbolt: Update nvm.c function documentation
thunderbolt: Update path.c function documentation
thunderbolt: Update property.c function documentation
thunderbolt: Update retimer.c function documentation
thunderbolt: Update switch.c function documentation
thunderbolt: Update tb.c function documentation
thunderbolt: Update tb.h function documentation
thunderbolt: Add missing documentation in tb.h
thunderbolt: Update tmu.c function documentation
thunderbolt: Update tunnel.c function documentation
thunderbolt: Update tunnel.h function documentation
thunderbolt: Update usb4.c function documentation
thunderbolt: Update usb4_port.c function documentation
thunderbolt: Update xdomain.c function documentation
thunderbolt: Update thunderbolt.h header file

Chelsy Ratnawat (1):
thunderbolt: Use string choices helpers

Duoming Zhou (1):
thunderbolt: Fix use-after-free in tb_dp_dprx_work

Eric Biggers (2):
thunderbolt: Compare HMAC values in constant time
thunderbolt: Use HMAC-SHA256 library instead of crypto_shash

Lukas Wunner (1):
thunderbolt: Use is_pciehp instead of is_hotplug_bridge

Mika Westerberg (2):
thunderbolt: Use Linux Foundation IDs for XDomain discovery
MAINTAINERS: Update Michael Jamet's maintainer entries

 CREDITS                         |   5 +
 MAINTAINERS                     |   2 -
 drivers/pci/quirks.c            |   2 +-
 drivers/thunderbolt/Kconfig     |   4 +-
 drivers/thunderbolt/acpi.c      |  28 ++--
 drivers/thunderbolt/cap.c       |  49 +++---
 drivers/thunderbolt/clx.c       |  12 +-
 drivers/thunderbolt/ctl.c       |  33 +++-
 drivers/thunderbolt/ctl.h       |   1 +
 drivers/thunderbolt/debugfs.c   |   3 +-
 drivers/thunderbolt/dma_port.c  |  21 ++-
 drivers/thunderbolt/domain.c    |  73 +++------
 drivers/thunderbolt/eeprom.c    |   4 +-
 drivers/thunderbolt/lc.c        |  58 +++++--
 drivers/thunderbolt/nhi.c       |  20 ++-
 drivers/thunderbolt/nhi_regs.h  |   6 +
 drivers/thunderbolt/nvm.c       |  42 +++--
 drivers/thunderbolt/path.c      |  14 +-
 drivers/thunderbolt/property.c  |  38 +++--
 drivers/thunderbolt/retimer.c   |   7 +-
 drivers/thunderbolt/switch.c    | 140 +++++++++++-----
 drivers/thunderbolt/tb.c        |  32 ++--
 drivers/thunderbolt/tb.h        |  45 ++++--
 drivers/thunderbolt/tmu.c       |  16 +-
 drivers/thunderbolt/tunnel.c    |  90 +++++++----
 drivers/thunderbolt/tunnel.h    |   9 +-
 drivers/thunderbolt/usb4.c      | 346 +++++++++++++++++++++++++++-------------
 drivers/thunderbolt/usb4_port.c |   7 +-
 drivers/thunderbolt/xdomain.c   |  53 ++++--
 include/linux/thunderbolt.h     |  25 +--
 30 files changed, 782 insertions(+), 403 deletions(-)

Pulled and pushed out, thanks.

greg k-h