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Mario Limonciello 65fc0fc137 usb: xhci: Avoid showing warnings for dying controller
When a USB4 dock is unplugged from a system it won't respond to ring
events. The PCI core handles the surprise removal event and notifies
all PCI drivers. The XHCI PCI driver sets a flag that the device is
being removed, and when the device stops responding a flag is also
added to indicate it's dying.

When that flag is set don't bother to show warnings about a missing
controller.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20250717073107.488599-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-07-17 10:53:04 +02:00
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README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.