Re: [PATCH v4] staging: greybus: Convert uart.c from IDR to XArray

[Matthew Wilcox]

On Mon, Aug 30, 2021 at 01:52:48PM +0200, Johan Hovold wrote:
> Whether the API is better is debatable. As I said, almost no drivers use
> the new XArray interface, and perhaps partly because the new interface
> isn't as intuitive as has been claimed (e.g. xa_load() instead of
> ida_find()). And IDR/IDA isn't marked/documented as deprecated as far as
> I know.

I can't just slap a 'deprecated' attribute on it.  That'll cause a
storm of warnings.  What would you suggest I do to warn people that
this interface is deprecated and I would like to remove it?

Why do you think that idr_find() is more intuitive than xa_load()?
The 'find' verb means that you search for something.  But it doesn't
search for anything; it just returns the pointer at that index.
'find' should return the next non-NULL pointer at-or-above a given
index.