Re: [PATCH 04/12] i3c: master: Support ACPI enumeration

[Guenter Roeck]

On 3/23/26 11:42, Akhil R wrote:
> On Mon, 23 Mar 2026 01:47:20 +0800, kernel test robot wrote:
> > kernel test robot noticed the following build errors:
> >
> > [auto build test ERROR on next-20260320]
> > [also build test ERROR on linus/master v7.0-rc4]
> > [cannot apply to i3c/i3c/next rafael-pm/linux-next rafael-pm/bleeding-edge groeck-staging/hwmon-next v7.0-rc4 v7.0-rc3 v7.0-rc2]
> > [If your patch is applied to the wrong git tree, kindly drop us a note.
> > And when submitting patch, we suggest to use '--base' as documented in
> > https://git-scm.com/docs/git-format-patch#_base_tree_information]
> >
> > url:    https://github.com/intel-lab-lkp/linux/commits/Akhil-R/dt-bindings-i3c-Add-mipi-i3c-static-method-to-support-SETAASA/20260322-174037
> > base:   next-20260320
> > patch link:    https://lore.kernel.org/r/20260318172820.13771-5-akhilrajeev%40nvidia.com
> > patch subject: [PATCH 04/12] i3c: master: Support ACPI enumeration
> > config: sparc-randconfig-002-20260322 (https://download.01.org/0day-ci/archive/20260323/202603230007.WOMwklQ6-lkp@xxxxxxxxx/config)
> > compiler: sparc-linux-gcc (GCC) 15.2.0
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260323/202603230007.WOMwklQ6-lkp@xxxxxxxxx/reproduce)
> >
> > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > the same patch/commit), kindly add following tags
> > | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> > | Closes: https://lore.kernel.org/oe-kbuild-all/202603230007.WOMwklQ6-lkp@xxxxxxxxx/
> >
> > All errors (new ones prefixed by >>):
> >
> >     drivers/i3c/master.c: In function 'i3c_master_add_i2c_boardinfo':
> > > > drivers/i3c/master.c:2449:23: error: implicit declaration of function 'acpi_dev_get_resources'; did you mean 'acpi_get_event_resources'? [-Wimplicit-function-declaration]
> >      2449 |                 ret = acpi_dev_get_resources(adev, &resources,
> >           |                       ^~~~~~~~~~~~~~~~~~~~~~
> >           |                       acpi_get_event_resources
> > > > drivers/i3c/master.c:2455:17: error: implicit declaration of function 'acpi_dev_free_resource_list' [-Wimplicit-function-declaration]
> >      2455 |                 acpi_dev_free_resource_list(&resources);
> >           |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~
> >     drivers/i3c/master.c: In function 'i3c_master_add_acpi_dev':
> > > > drivers/i3c/master.c:2556:9: error: unknown type name 'acpi_bus_address'; did you mean 'acpi_io_address'?
> >      2556 |         acpi_bus_address adr;
> >           |         ^~~~~~~~~~~~~~~~
> >           |         acpi_io_address
> > > > drivers/i3c/master.c:2563:14: error: implicit declaration of function 'acpi_has_method'; did you mean 'acpi_has_watchdog'? [-Wimplicit-function-declaration]
> >      2563 |         if (!acpi_has_method(adev->handle, "_ADR"))
> >           |              ^~~~~~~~~~~~~~~
> >           |              acpi_has_watchdog
> > > > drivers/i3c/master.c:2563:34: error: invalid use of undefined type 'struct acpi_device'
> >      2563 |         if (!acpi_has_method(adev->handle, "_ADR"))
> >           |                                  ^~
> > > > drivers/i3c/master.c:2566:15: error: implicit declaration of function 'acpi_device_adr'; did you mean 'acpi_device_handle'? [-Wimplicit-function-declaration]
> >      2566 |         adr = acpi_device_adr(adev);
> >           |               ^~~~~~~~~~~~~~~
> >           |               acpi_device_handle
>
> #include <linux/acpi.h> is added in PATCH 03/12. The functions' prototypes
> are present in acpi.h. I think the bot checked this patch individually,
> or did I miss something?

Did you try to build this code with a sparc cross-compiler ?
Because, as far as I can see, the functions are not declared or available
if ACPI is not enabled (or available, as with sparc).

Guenter