[PATCH v6 0/2] PCI: s390: Expose the UID as an arch specific PCI slot attribute

[Niklas Schnelle <schnelle@linux.ibm.com>]

Hi all,

Add a mechanism for architecture specific attributes on
PCI slots in order to add the user-defined ID (UID) as an s390 specific
PCI slot attribute. First though improve some issues with the s390 specific
documentation of PCI sysfs attributes noticed during development. 

Also note, I considered adding the UID as a generic slot index attribute
analogous to the PCI device index attribute (SMBIOS index / s390 UID)
but decided against it as this seems rather s390 specific and having
it named UID makes things easier for users and aligns with the existing
separate uid device attribute.

Thanks,
Niklas

v5->v6:
- Add documentation cleanup patch before adding new slot attribute
- Link to v5: https://lore.kernel.org/r/20260401-uid_slot-v5-1-e73036c74bf6@linux.ibm.com

Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
---
---
Niklas Schnelle (2):
      docs: s390/pci: Improve and update PCI documentation
      PCI: s390: Expose the UID as an arch specific PCI slot attribute

 Documentation/arch/s390/pci.rst | 146 +++++++++++++++++++++++++++-------------
 arch/s390/include/asm/pci.h     |   4 ++
 arch/s390/pci/pci_sysfs.c       |  20 ++++++
 drivers/pci/slot.c              |  13 +++-
 4 files changed, 137 insertions(+), 46 deletions(-)
---
base-commit: 7aaa8047eafd0bd628065b15757d9b48c5f9c07d
change-id: 20250923-uid_slot-e3559cf5ca30

Best regards,
-- 
Niklas Schnelle