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The PCI hotplug core contains five has_*_file() functions to determine
whether a certain sysfs file shall be added (or removed) for a given
hotplug slot.
The functions perform NULL pointer checks for the hotplug_slot and its
hotplug_slot_ops. However the callers already perform these checks:
pci_hp_register()
__pci_hp_register()
__pci_hp_initialize()
pci_hp_deregister()
pci_hp_del()
The only way to actually trigger these checks is to call pci_hp_add()
without having called pci_hp_initialize().
Amend pci_hp_add() to catch that and drop the now superfluous NULL
pointer checks in has_*_file().
Drop the same superfluous checks from pci_hp_create_module_link(),
which is (only) called from pci_hp_add().
Link: https://lore.kernel.org/r/37d1928edf8c3201a8b10794f1db3142e16e02b9.1740501868.git.lukas@wunner.de
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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| arch | ||
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| certs | ||
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| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
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| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
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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 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.