[PATCH v4 0/3] PCI/ERR: s390/pci: Use pci_uevent_ers() in PCI recovery

[Niklas Schnelle]

Hi Bjorn, Lukas, Mahesh,

This series adds issuing of uevents during PCI recovery on s390. In
developing this I noticed that pci_uevent_ers() ignores
PCI_ERS_RESULT_NEED_RESET. I think this will result in AER not generating a uevent
at the beginning of recovery if drivers request a reset via the voting
on error_detected() returns. This is fixed in the first patch and relied
upon by the s390 recovery code as it also uses the result of
error_detected() though with one device/driver at a time.

Thanks,
Niklas

Signed-off-by: Niklas Schnelle <schnelle at linux.ibm.com>
---
Changes in v4:
- Add change in EEH to use the return of error_detected() in the uevent
  just like AER and the new s390 code
- Add R-b from Lukas
- Link to v3: https://lore.kernel.org/r/20250730-add_err_uevents-v3-0-540b158c070f@linux.ibm.com

Changes in v3:
- Reworded cover letter
- Rebase on v6.16
- Link to v2: https://lore.kernel.org/r/20250623-add_err_uevents-v2-0-a3a2cf8e711d@linux.ibm.com

Changes in v2:
- Add a patch fixing pci_uevent_ers() mistakenly ignoring PCI_ERS_RESULT_NEED_RESET
- Use the result of error_detected() for initial pci_uevent_ers()
- Drop fixes tag in s390 patch
- Rebase and re-test on current master
- Link to v1: https://lore.kernel.org/r/20250424-add_err_uevents-v1-1-3384d6b779c6@linux.ibm.com

---
Niklas Schnelle (3):
      PCI/AER: Fix missing uevent on recovery when a reset is requested
      powerpc/eeh: Use result of error_detected() in uevent
      PCI/ERR: s390/pci: Use pci_uevent_ers() in PCI recovery

 arch/powerpc/kernel/eeh_driver.c | 2 +-
 arch/s390/pci/pci_event.c        | 3 +++
 drivers/pci/pci-driver.c         | 3 ++-
 include/linux/pci.h              | 2 +-
 4 files changed, 7 insertions(+), 3 deletions(-)
---
base-commit: 038d61fd642278bab63ee8ef722c50d10ab01e8f
change-id: 20250417-add_err_uevents-6f8d4d7ce09c

Best regards,
-- 
Niklas Schnelle