On 6/20/25 01:13, Greg Kroah-Hartman wrote:

On Thu, Jun 19, 2025 at 04:05:34PM -0400, Sean Anderson wrote:

quoted

Support creating auxiliary devices with the id included as part of the
name. This allows for non-decimal ids, which may be more appropriate for
auxiliary devices created as children of memory-mapped devices. For
example, a name like "xilinx_emac.mac.802c0000" could be achieved by
setting .name to "mac.802c0000" and .id to AUXILIARY_DEVID_NONE.

I don't see the justification for this, sorry.  An id is just an id, it
doesn't matter what is is and nothing should be relying on it to be the
same across reboots or anywhere else.  The only requirement is that it
be unique at this point in time in the system.

It identifies the device in log messages. Without this you have to read
sysfs to determine what device is (for example) producing an error. This
may be inconvenient to do if the error prevents the system from booting.
This series converts a platform device with a legible ID like
"802c0000.ethernet" to an auxiliary device, and I believe descriptive
device names produce a better developer experience.

This is also shorter and simpler than auto-generated IDs.

--Sean