Merge tag 'thunderbolt-for-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next

Mika writes:

thunderbolt: Changes for v6.3 merge window

This includes following Thunderbolt/USB4 changes for the v6.3 merge
window:

  - Add support for DisplayPort bandwidth allocation mode
  - Debug logging improvements
  - Minor cleanups.

All these have been in linux-next with no reported issues.

* tag 'thunderbolt-for-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt:
  thunderbolt: Add missing kernel-doc comment to tb_tunnel_maximum_bandwidth()
  thunderbolt: Handle bandwidth allocation mode enablement notification
  thunderbolt: Add support for DisplayPort bandwidth allocation mode
  thunderbolt: Include the additional DP IN double word in debugfs dump
  thunderbolt: Add functions to support DisplayPort bandwidth allocation mode
  thunderbolt: Increase timeout of DP OUT adapter handshake
  thunderbolt: Take CL states into account when waiting for link to come up
  thunderbolt: Improve debug logging in tb_available_bandwidth()
  thunderbolt: Log DP adapter type
  thunderbolt: Use decimal port number in control and tunnel logs too
  thunderbolt: Refactor tb_acpi_add_link()
  thunderbolt: Use correct type in tb_port_is_clx_enabled() prototype

1 files changed, 5 insertions, 8 deletions

diff --git a/drivers/thunderbolt/acpi.c b/drivers/thunderbolt/acpi.c
index 317e4f5fdb97..628225deb8fe 100644
--- a/drivers/thunderbolt/acpi.c
+++ b/drivers/thunderbolt/acpi.c
@@ -36,16 +36,13 @@ static acpi_status tb_acpi_add_link(acpi_handle handle, u32 level, void *data,
 	 * We need to do this because the xHCI driver might not yet be
 	 * bound so the USB3 SuperSpeed ports are not yet created.
 	 */
-	dev = acpi_get_first_physical_node(adev);
-	while (!dev) {
-		adev = acpi_dev_parent(adev);
-		if (!adev)
-			break;
+	do {
 		dev = acpi_get_first_physical_node(adev);
-	}
+		if (dev)
+			break;
 
-	if (!dev)
-		goto out_put;
+		adev = acpi_dev_parent(adev);
+	} while (adev);
 
 	/*
 	 * Check that the device is PCIe. This is because USB3