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8cd6aacc64
The powerpc PCI code requires that a pci_dn structure exists for all devices in the system. This is fine for real devices since at boot a pci_dn is created for each PCI device in the DT and it's fine for hotplugged devices since the hotplug slot driver will manage the pci_dn's devices in hotplug slots. For SR-IOV, we need the platform / pcibios to manage the pci_dn for virtual functions since firmware is unaware of VFs, and they aren't "hot plugged" in the traditional sense. Management of the pci_dn is handled by the, poorly named, functions: add_pci_dev_data() and remove_pci_dev_data(). The entire body of these functions is #ifdef`ed around CONFIG_PCI_IOV and they cannot be used in any other context, so make them only available when CONFIG_PCI_IOV is selected, and rename them to reflect their actual usage rather than having them masquerade as generic code. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Reviewed-by: Sam Bobroff <sbobroff@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190821062655.19735-2-oohall@gmail.com |
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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.