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When the UEFI/BIOS or bootloader has not initialised a PCIe device we would get the following message: kern.warning: pci 0000:00:01.0: ASPM: current common clock configuration is broken, reconfiguring "warning" and "broken" are slightly misleading. On an embedded system it is quite possible for the bootloader to avoid configuring PCIe devices if they are not needed. Downgrade the message to pci_info() and change "broken" to "inconsistent" since we fix up the inconsistency in the code immediately following the message (and emit an error if that fails). Link: https://lore.kernel.org/r/20200323035530.11569-1-chris.packham@alliedtelesis.co.nz Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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.