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When 8139too is probing and 8139TOO_PIO=y it will call pci_iomap_range() and from there __pci_ioport_map() for the PCI IO space. If HAS_IOPORT_MAP=n and NO_GENERIC_PCI_IOPORT_MAP=n, like it is on my m68k config, __pci_ioport_map() becomes NULL, pci_iomap_range() will always fail and the driver will complain it couldn't map the PIO space and return an error. NO_IOPORT_MAP seems to cover the case where what 8139too is trying to do cannot ever work so make 8139TOO_PIO depend on being it false and avoid creating an unusable driver. Signed-off-by: Daniel Palmer <daniel@thingy.jp> Link: https://patch.msgid.link/20250907064349.3427600-1-daniel@thingy.jp Signed-off-by: Jakub Kicinski <kuba@kernel.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 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.