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Lukas Wunner ce45dc4bb2
 PCI: Limit visibility of match_driver flag to PCI core 
Since commit 58d9a38f6f ("PCI: Skip attaching driver in device_add()"),
PCI enumeration is split into two steps:  In the first step, all devices
are published in sysfs with device_add().  In the second step, drivers are
bound to the devices with device_attach().  To delay driver binding until
the second step, a "bool match_driver" in struct pci_dev is used.

Instead of a bool, use a bit in the "unsigned long priv_flags" to shrink
struct pci_dev a little and prevent use of the bool outside the PCI core
(as has happened with commit cbbc00be2c ("iommu/amd: Prevent binding
other PCI drivers to IOMMU PCI devices")).

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Link: https://patch.msgid.link/d22a9e5b81d6bd8dd1837607d6156679b3b1199c.1745572340.git.lukas@wunner.de
History 2025-05-15 13:40:52 +00:00
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README

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 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.