[PATCH] of: Skip devicetree kunit tests when RISCV+ACPI doesn't populate root node

Guenter Roeck linux at roeck-us.net
Wed Nov 26 07:58:17 PST 2025


On Thu, Nov 20, 2025 at 07:06:46PM -0600, Rob Herring wrote:
> On Thu, Nov 13, 2025 at 8:53 PM Paul Walmsley <pjw at kernel.org> wrote:
> >
> > Hi Rob,
> >
> > On Wed, 12 Nov 2025, Rob Herring (Arm) wrote:
> >
> > > I guess the riscv folks don't care about supporting the relevant
> > > features either, so I've applied it. Can kicked down the road again.
> >
> > For the record: we do care.  However, it looks like this problem needs a
> > more general solution, something that applies across CPU architectures.
> > Lacking that, we might as well have behavior consistent with ARM64 - and
> > for its faults, this approach is at least simpler to reason about.
> 
> The thing is that problems show up on specific machines which has
> little to do with the specific CPU arch. I don't have any visibility
> as to what problem you all had which prompted disabling it (for the
> arch, not the kunit tests) to be able to think about a solution.
> Leaving it off just means we're potentially adding regressions in the
> future when we try to turn it on.
> 

Since the patch introducing the problem has now been backported to v6.12
and v6.17, I disabled CONFIG_OF_KUNIT_TEST for riscv entirely in my test
system.

Guenter



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