Hi Bjorn and others,
Triggered by Christoph's patches, I had another go at converting
all of the remaining pci host bridge implementations to be based
on pci_alloc_host_bridge and a separate registration function.
This is made possible through work from Lorenzo and others to
convert many of the existing drivers, as well as the removal
of some of the older architectures that nobody used.
I'm adding a bit of duplication into the less maintained code
here, but it makes everything more consistent, and gives an
easy place to hook up callback functions etc.
The three parts of this series are:
a) push up the registration into the callers (this is where
code gets added)
b) clean up some of the more common host bridge
implementations again to integrate that code better.
This could be done for the rest as well, or we could just
leave them alone.
c) start moving the __weak functions into callbacks in
pci_host_bridge. This is intentionally incomplete, since
it is a lot of work to do it for all those functions,
and I want to get consensus on the approach first, as well
as maybe get other developers to help out with the rest.
Please have a look.
Arnd
[1] https://lore.kernel.org/lkml/4288331.jNpl6KXlNO@wuerfel/
[2] https://patchwork.kernel.org/patch/10555657/
Arnd Bergmann (15):
PCI: clean up legacy host bridge scan functions
PCI: move pci_scan_bus into callers
PCI: move pci_scan_root_bus into callers
PCI: export pci_register_host_bridge
PCI: move pci_create_root_bus into callers
powerpc/pci: fold pci_create_root_bus into pcibios_scan_phb
PCI/ACPI: clean up acpi_pci_root_create()
x86: PCI: clean up pcibios_scan_root()
PCI: xenfront: clean up pcifront_scan_root()
sparc/PCI: simplify pci_scan_one_pbm
PCI: hyperv: convert to pci_scan_root_bus_bridge
PCI: make pcibios_bus_add_device() a callback function
PCI: turn pcibios_alloc_irq into a callback
PCI: make pcibios_root_bridge_prepare a callback
PCI: make pcibios_add_bus/remove_bus callbacks
arch/arm64/kernel/pci.c | 40 ++-----
arch/ia64/pci/pci.c | 25 +----
arch/ia64/sn/kernel/io_init.c | 27 +++++
arch/microblaze/pci/pci-common.c | 27 +++++
arch/powerpc/include/asm/pci-bridge.h | 3 +
arch/powerpc/kernel/pci-common.c | 60 +++++------
arch/s390/pci/pci.c | 30 +++++-
arch/sh/drivers/pci/pci.c | 1 +
arch/sh/drivers/pci/pcie-sh7786.c | 3 +-
arch/sh/include/asm/pci.h | 2 +
arch/sparc/kernel/pci.c | 40 ++++---
arch/sparc/kernel/pcic.c | 35 ++++++
arch/x86/pci/acpi.c | 15 +--
arch/x86/pci/common.c | 42 ++++----
arch/xtensa/kernel/pci.c | 27 +++++
drivers/acpi/pci_root.c | 43 +++++---
drivers/parisc/dino.c | 28 +++++
drivers/parisc/lba_pci.c | 28 +++++
drivers/pci/bus.c | 8 +-
drivers/pci/controller/pci-hyperv.c | 47 ++++----
drivers/pci/controller/vmd.c | 30 +++++-
drivers/pci/hotplug/ibmphp_core.c | 35 ++++++
drivers/pci/pci-driver.c | 13 ++-
drivers/pci/probe.c | 150 +++++++++-----------------
drivers/pci/xen-pcifront.c | 40 +++----
include/linux/acpi.h | 2 +
include/linux/pci.h | 17 ++-
27 files changed, 514 insertions(+), 304 deletions(-)
--
2.18.0
