[PATCH v4 0/7] PCI: Remove pcim_iounmap_regions()

[Philipp Stanner <pstanner@xxxxxxxxxx>]

OK, so unfortunately it seems very challenging to reconcile the merge
conflict pointed up by Serge between net-next and pci-devres regarding
"ethernet: stmicro": A patch that applies to the net-next tree does not
apply anymore to pci-devres (and vice versa).

So I actually think that it would be best if we just drop the portation
of "ethernet: stmicro" for now and port it as the last user in v6.13.

That should then be trivial.

Changes in v4:
  - Drop the "ethernet: stmicro: [...] patch since it doesn't apply to
    net-next, and making it apply to that prevents it from being
    applyable to PCI ._. (Serge, me)
  - Instead, deprecate pcim_iounmap_regions() and keep "ethernet:
    stimicro" as the last user for now. Perform the deprecation in the
    series' first patch. Remove the Reviewed-by's givin so far to that
    patch.
  - ethernet: cavium: Use PTR_ERR_OR_ZERO(). (Andy)
  - vdpa: solidrun (Bugfix) Correct wrong printf string (was "psnet" instead of
    "snet"). (Christophe)
  - vdpa: solidrun (Bugfix): Add missing blank line. (Andy)
  - vdpa: solidrun (Portation): Use PTR_ERR_OR_ZERO(). (Andy)
  - Apply Reviewed-by's from Andy and Xu Yilun.

Changes in v3:
  - fpga/dfl-pci.c: remove now surplus wrapper around
    pcim_iomap_region(). (Andy)
  - block: mtip32xx: remove now surplus label. (Andy)
  - vdpa: solidrun: Bugfix: Include forgotten place where stack UB
    occurs. (Andy, Christophe)
  - Some minor wording improvements in commit messages. (Me)

Changes in v2:
  - Add a fix for the UB stack usage bug in vdap/solidrun. Separate
    patch, put stable kernel on CC. (Christophe, Andy).
  - Drop unnecessary pcim_release_region() in mtip32xx (Andy)
  - Consequently, drop patch "PCI: Make pcim_release_region() a public
    function", since there's no user anymore. (obsoletes the squash
    requested by Damien).
  - vdap/solidrun:
    • make 'i' an 'unsigned short' (Andy, me)
    • Use 'continue' to simplify loop (Andy)
    • Remove leftover blank line
  - Apply given Reviewed- / acked-bys (Andy, Damien, Bartosz)


Important things first:
This series is based on [1] and [2] which Bjorn Helgaas has currently
queued for v6.12 in the PCI tree.

This series shall remove pcim_iounmap_regions() in order to make way to
remove its brother, pcim_iomap_regions().

@Bjorn: Feel free to squash the PCI commits.

Regards,
P.

[1] https://lore.kernel.org/all/20240729093625.17561-4-pstanner@xxxxxxxxxx/
[2] https://lore.kernel.org/all/20240807083018.8734-2-pstanner@xxxxxxxxxx/

Philipp Stanner (7):
  PCI: Deprecate pcim_iounmap_regions()
  fpga/dfl-pci.c: Replace deprecated PCI functions
  block: mtip32xx: Replace deprecated PCI functions
  gpio: Replace deprecated PCI functions
  ethernet: cavium: Replace deprecated PCI functions
  vdpa: solidrun: Fix UB bug with devres
  vdap: solidrun: Replace deprecated PCI functions

 drivers/block/mtip32xx/mtip32xx.c             | 16 +++--
 drivers/fpga/dfl-pci.c                        | 16 ++---
 drivers/gpio/gpio-merrifield.c                | 14 ++---
 .../net/ethernet/cavium/common/cavium_ptp.c   |  6 +-
 drivers/pci/devres.c                          |  8 ++-
 drivers/vdpa/solidrun/snet_main.c             | 59 ++++++++-----------
 include/linux/pci.h                           |  1 +
 7 files changed, 51 insertions(+), 69 deletions(-)

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2.46.0