On Fri, Sep 4, 2020 at 6:41 PM Andy Shevchenko
[off-list ref] wrote:

On Fri, Sep 04, 2020 at 05:45:30PM +0200, Bartosz Golaszewski wrote:

quoted

From: Bartosz Golaszewski <redacted>

We don't need to specify any ranges when allocating IDs so we can switch
to ida_alloc() and ida_free() instead of the ida_simple_ counterparts.

ida_simple_get(ida, 0, 0, gfp) is equivalent to
ida_alloc_range(ida, 0, UINT_MAX, gfp) which is equivalent to
ida_alloc(ida, gfp). Note: IDR will never actually allocate an ID
larger than INT_MAX.

Have you considered switching to XArray API?

IDA uses an xarray internally but wraps it in a more straightforward
API. No need to use the low-level API IMO.

Bart