[PATCH v7 0/4] PCI: of: warn on bogus device_type property

[Alex Elder <elder@riscstar.com>]

  *** Bjorn seems happy with this series, and Herve has reviewed ***
  ***  almost all of it, but we'd prefer to get an ACK from Rob  ***

Add a check when adding a PCI device to ensure the device_type
property is (or is not) correctly defined when the device has
a non-null devicetree node pointer.

This series also includes three other minor cleanups to the PCI
devicetree code.  The first patch prevents a possible null pointer
dereference that Sashiko pointed out some time back.  The second
and third patches are simple cleanups.  The last adds the new PCI
devicetree node checks and warnings.

					-Alex

Between version 6 and version 7:
- Simplified the wording on this cover letter
- No longer check for snprintf() overflow in of_pci_prop_compatible()
- Rebased onto 7.4-rc1

Version 6 is available here:
  https://lore.kernel.org/lkml/20260924150222.1179235-1-elder@riscstar.com/

Between version 5 and version 6:
- Simplified the patch header on the last patch, as suggested by
  Bjorn
- Rebased on v7.3-rc4; otherwise no code changes

Version 5 is available here:
  https://lore.kernel.org/lkml/20260908213459.2519059-1-elder@riscstar.com/

Between version 4 and version 5:
- Made a local variable (bufp) a pointer type in the first patch
- Eliminated an unused local variable (i) in the first patch

Version 4 is available here:
  https://lore.kernel.org/lkml/20260904134607.1856121-1-elder@riscstar.com/

Between version 3 and version 4:
- Insert a first patch that fixes a Sashiko-reported issue
- Drop the final "duplicate warning" patch from v3
- Include "pciex" as a valid PCI bridge device_type property value
- Add Herve's Reviewed-by tag on the last patch

Version 3 is available here:
  https://lore.kernel.org/lkml/20260901011338.1323243-1-elder@riscstar.com/

Between version 2 and version 3:
- Drop a patch that made a change only needed by a different series
- Switch a function header to use kernel-doc format
- Add a warning if a PCI bridge node has no device_type property
- Added a patch to remove a duplicate warning in the devicetree code

Version 2 is available here:
  https://lore.kernel.org/lkml/20260812172247.276554-1-elder@riscstar.com/

Between version 1 and version 2:
- Check the PCI devicetree node even when PCI_DYNAMIC_OF_NODES is
  not enabled

Version 1 is available here:
  https://lore.kernel.org/lkml/20260807194100.455599-1-elder@riscstar.com/

Alex Elder (4):
  PCI: of: avoid allocations in of_pci_prop_compatible()
  PCI: of: drop the reg_num argument to of_pci_set_address()
  PCI: of: don't zero flags in of_pci_get_addr_flags()
  PCI: of: introduce of_pci_verify_node()

 drivers/pci/bus.c         |  1 +
 drivers/pci/of.c          | 32 +++++++++++++++++++++++++++++
 drivers/pci/of_property.c | 43 +++++++++++++++++++++------------------
 drivers/pci/pci.h         |  3 +++
 4 files changed, 59 insertions(+), 20 deletions(-)


base-commit: 6628e7d4c6b25c8d18f1345e3a20d21829aae7e4
-- 
2.53.0