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

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PS:
This series's title should now obviously be "*Mostly* Remove
pcim_iounmap_regions()".

On Tue, 2024-08-27 at 20:56 +0200, Philipp Stanner wrote:
> 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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