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commit308092d080upstream. Alex reported that after rebooting the other host the peer-to-peer link does not come up anymore. The reason for this is that the host that was not rebooted tries to send the UUID request only 10 times according to the USB4 Inter-Domain spec and gives up if it does not get reply. Then when the other side is actually ready it cannot get the link established anymore. The USB4 Inter-Domain spec requires that the discovery protocol is restarted in that case so implement this now. Reported-by: Alex Balcanquall <alex@alexbal.com> Fixes:8e1de70425("thunderbolt: Add support for XDomain lane bonding") Cc: stable@vger.kernel.org Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 Restructured Text 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.