Re: [PATCH v6 1/2] of: kobj: export of_node_ktype for use by modules

[Rob Herring]

On Tue, Jul 21, 2026 at 5:51 AM Xu Yang <xu.yang_2@xxxxxxxxxxx> wrote:
>
> From: Xu Yang <xu.yang_2@xxxxxxx>
>
> of_node_init() is a static inline that references of_node_ktype when
> CONFIG_OF_KOBJ=y. Any module that calls of_node_init() will therefore
> have an unresolved reference to of_node_ktype at load time, because
> the symbol is defined in drivers/of/kobj.c but was never exported.
>
> This causes a modpost build error when CONFIG_OF_KOBJ=y and
> CONFIG_DRIVER_PE_KUNIT_TEST=m:
>
>   ERROR: modpost: "of_node_ktype"
>   [drivers/base/test/property-entry-test.ko] undefined!
>
> Add EXPORT_SYMBOL_IF_KUNIT(of_node_ktype) so that modules such as the
> KUnit property-entry test can call of_node_init() without hitting this
> linker error.
>
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Closes: https://lore.kernel.org/oe-kbuild-all/202607181651.RnUuV8n6-lkp@xxxxxxxxx/
> Signed-off-by: Xu Yang <xu.yang_2@xxxxxxx>

Acked-by: Rob Herring (Arm) <robh@xxxxxxxxxx>