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Niklas Neronin cbfd3c7d4e Revert "usb: xhci: remove option to change a default ring's TRB cycle bit" 
Revert commit 9b28ef1e4c which is upstream
commit e1b0fa8639

It causes regression in 6.12.49 stable, no issues in upstream.

Commit 9b28ef1e4c ("usb: xhci: remove option to change a default
ring's TRB cycle bit") introduced a regression in 6.12.49 stable kernel.
The original commit was never intended for stable kernels, but was added
as a dependency for commit a5c98e8b13 ("xhci: dbc: Fix full DbC
transfer ring after several reconnects").

Since this commit is more of an optimization, revert it and solve the
dependecy by modifying one line in xhci_dbc_ring_init(). Specifically,
commit a5c98e8b13 ("xhci: dbc: Fix full DbC transfer ring after
several reconnects") moved function call xhci_initialize_ring_info()
into a separate function. To resolve the dependency, the arguments for
this function call are also reverted.

Closes: https://lore.kernel.org/stable/01b8c8de46251cfaad1329a46b7e3738@stwm.de/
Tested-by: Wolfgang Walter <linux@stwm.de>
Cc: stable@vger.kernel.org # v6.12.49
Signed-off-by: Niklas Neronin <niklas.neronin@linux.intel.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-10-02 13:44:15 +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.