[Bug 226562] [stable/10] backport pci/cardbus hot-remove support from FreeBSD 11 to 10

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=226562

--- Comment #6 from commit-hook at freebsd.org ---
A commit references this bug:

Author: jhb
Date: Wed Mar 14 19:04:41 UTC 2018
New revision: 330938
URL: https://svnweb.freebsd.org/changeset/base/330938

Log:
  Convert pci_delete_child() to a bus_child_deleted() method.

  Instead of providing a wrapper around device_delete_child() that the PCI
  bus and child bus drivers must call explicitly, move the bulk of the logic
  from pci_delete_child() into a bus_child_deleted() method
  (pci_child_deleted()).  This allows PCI devices to be safely deleted via
  device_delete_child().
  - Add a bus_child_deleted method to the ACPI PCI bus which clears the
    device_t associated with the corresponding ACPI handle in addition to
    the normal PCI bus cleanup.
  - Change cardbus_detach_card to call device_delete_children() and move
    CardBus-specific delete logic into a new cardbus_child_deleted() method.
  - Use device_delete_child() instead of pci_delete_child() in the SRIOV code.
  - Add a bus_child_deleted method to the OpenFirmware PCI bus drivers which
    frees the OpenFirmware device info for each PCI device.

  To preserve KBI, a pci_delete_child() function is left in place that
  just calls device_delete_child().

  PR:           226562
  Requested by: dexuan

Changes:
_U  stable/10/
  stable/10/sys/dev/acpica/acpi_pci.c
  stable/10/sys/dev/cardbus/cardbus.c
  stable/10/sys/dev/pci/pci.c
  stable/10/sys/dev/pci/pci_private.h
  stable/10/sys/powerpc/ofw/ofw_pcibus.c
  stable/10/sys/sparc64/pci/ofw_pcibus.c

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