RE: [PATCH v9 4/5] cxl/core, EINJ: Add EINJ CXL debugfs files and EINJ helper functions

[Dan Williams <dan.j.williams@intel.com>]

Ben Cheatham wrote:
> Implement CXL helper functions in the EINJ module for getting/injecting
> available CXL protocol error types and export them to sysfs under
> kernel/debug/cxl.
> 
> The kernel/debug/cxl/einj_types file will print the available CXL
> protocol errors in the same format as the available_error_types
> file provided by the EINJ module. The
> kernel/debug/cxl/$dport_dev/einj_inject is functionally the same as the
> error_type and error_inject files provided by the EINJ module, i.e.:
> writing an error type into $dport_dev/einj_inject will inject said error
> type into the CXL dport represented by $dport_dev.
> 
> Signed-off-by: Ben Cheatham <Benjamin.Cheatham@amd.com>
> ---
>  Documentation/ABI/testing/debugfs-cxl |  22 ++++
>  drivers/acpi/apei/einj.c              | 144 ++++++++++++++++++++++++--
>  drivers/cxl/core/port.c               |  39 +++++++
>  include/linux/einj-cxl.h              |  42 ++++++++
>  4 files changed, 237 insertions(+), 10 deletions(-)
>  create mode 100644 include/linux/einj-cxl.h

Checkpatch notes that this file likely wants to be accounted for in
MAINTAINERS. Just add it to the CXL subsystem file list.