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5da1b58868
If legacy I/O spaces are not supported simply return an error when trying to access them via pci_resource_io(). This allows inb() and friends to become undefined when they are known at compile time to be non-functional in a later patch. Co-developed-by: Arnd Bergmann <arnd@kernel.org> Link: https://lore.kernel.org/r/20230703135255.2202721-3-schnelle@linux.ibm.com Signed-off-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> 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.