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dc92944a01
While rebooting, XHCI controller and its bus device will be shut down in order by .shutdown callback. Stopping roothubs polling in xhci_shutdown() can prevent XHCI driver from accessing port status after its bus device shutdown. Take PCIe XHCI controller as example, if XHCI driver doesn't stop roothubs polling, XHCI driver may access PCIe BAR register for port status after parent PCIe root port driver is shutdown and cause PCIe bus error. [check shared hcd exist before stopping its roothub polling -Mathias] Cc: stable@vger.kernel.org Signed-off-by: Henry Lin <henryl@nvidia.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20220408134823.2527272-3-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
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| net | ||
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| scripts | ||
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| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| .gitignore | ||
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| COPYING | ||
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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 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.