Deprecate cxl and cxlflash drivers

[PATCH 0/2] Deprecate cxl and cxlflash drivers

Andrew Donnellan posted 2 patches 1 month, 2 weeks ago

Download series mbox

Documentation/ABI/{testing => obsolete}/sysfs-class-cxl | 3 +++
MAINTAINERS                                             | 4 ++--
drivers/misc/cxl/Kconfig                                | 6 ++++--
drivers/misc/cxl/of.c                                   | 2 ++
drivers/misc/cxl/pci.c                                  | 2 ++
drivers/scsi/cxlflash/Kconfig                           | 6 ++++--
drivers/scsi/cxlflash/main.c                            | 2 ++
7 files changed, 19 insertions(+), 6 deletions(-)
rename Documentation/ABI/{testing => obsolete}/sysfs-class-cxl (99%)

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[PATCH 0/2] Deprecate cxl and cxlflash drivers

Posted by Andrew Donnellan 1 month, 2 weeks ago

This series marks the cxl and cxlflash drivers as obsolete/deprecated,
disables them by default, and prints a warning to users on probe.

CAPI devices have been out of production for some time, and we're not
aware of any remaining users who are likely to want a modern kernel.
There's almost certainly some remaining driver bugs and we don't have much
hardware available to properly test the drivers any more.

This was previously discussed at [0] - I've decided not to try to do
anything funny with the Kconfig settings as explored in that thread, as it
seems unlikely to have any significant benefit.

This series will be followed up with patches to remove the drivers and
associated arch code, which I hope will be merged in the following cycle.

[0] https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20240409031027.41587-2-ajd@linux.ibm.com/

Andrew Donnellan (2):
  cxl: Deprecate driver
  scsi/cxlflash: Deprecate driver

 Documentation/ABI/{testing => obsolete}/sysfs-class-cxl | 3 +++
 MAINTAINERS                                             | 4 ++--
 drivers/misc/cxl/Kconfig                                | 6 ++++--
 drivers/misc/cxl/of.c                                   | 2 ++
 drivers/misc/cxl/pci.c                                  | 2 ++
 drivers/scsi/cxlflash/Kconfig                           | 6 ++++--
 drivers/scsi/cxlflash/main.c                            | 2 ++
 7 files changed, 19 insertions(+), 6 deletions(-)
 rename Documentation/ABI/{testing => obsolete}/sysfs-class-cxl (99%)

-- 
2.47.1

Re: [PATCH 0/2] Deprecate cxl and cxlflash drivers

Posted by Madhavan Srinivasan 3 weeks, 4 days ago

On Tue, 10 Dec 2024 16:40:53 +1100, Andrew Donnellan wrote:
> This series marks the cxl and cxlflash drivers as obsolete/deprecated,
> disables them by default, and prints a warning to users on probe.
> 
> CAPI devices have been out of production for some time, and we're not
> aware of any remaining users who are likely to want a modern kernel.
> There's almost certainly some remaining driver bugs and we don't have much
> hardware available to properly test the drivers any more.
> 
> [...]

Applied to powerpc/next.

[1/2] cxl: Deprecate driver
      https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=5731d41af924b764f32532d39d37a15f669c1e01 
[2/2] scsi/cxlflash: Deprecate driver
      https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=f117051514c33c43b7e0c517e0ae9e0189e884da 

Thanks