Re: [PATCH v6 06/31] drm/sched: Add some scheduling quality unit tests

[Tvrtko Ursulin <tvrtko.ursulin@igalia.com>]

On 11/02/2026 10:56, Philipp Stanner wrote:
> On Thu, 2026-01-29 at 23:31 +0800, kernel test robot wrote:
>> Hi Tvrtko,
>>
>> kernel test robot noticed the following build errors:
>>
>> [auto build test ERROR on drm-misc/drm-misc-next]
>> [also build test ERROR on drm-xe/drm-xe-next daeinki-drm-exynos/exynos-drm-next drm/drm-next drm-i915/for-linux-next drm-i915/for-linux-next-fixes drm-tip/drm-tip linus/master v6.19-rc7 next-20260128]
>> [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]
> 
> Hi Tvrtko,
> 
> what about this build error? Seems to be an Xe branch conflict?

I don't know what happened there in LKP, it appeared for the first time 
with v6. Drm_sched_scheduler_two_clients_attr looks constant to me:

static const struct kunit_attributes 
drm_sched_scheduler_two_clients_attr = {
	.speed = KUNIT_SPEED_SLOW,
};

static struct kunit_case drm_sched_scheduler_two_clients_tests[] = {
	KUNIT_CASE_PARAM_ATTR(drm_sched_scheduler_two_clients_test,
			      drm_sched_scheduler_two_clients_gen_params,
			      drm_sched_scheduler_two_clients_attr),
	{}
};

It builds fine for me but I will keep an eye on it.

> BTW, I think Danilo and I told you a few times already that we would
> like to get the whole patch series into our inboxes. You seem to
> exclude patches for other components, but it's important for me to see
> all the other driver maintainers' RBs etc. there and be easily able to
> ping those who haven't reacted yet and so on. Also quickly coyping an
> mbox to test-apply something etc. etc. is easier
> 
> I guess you want to spare people from noisy mail traffic, but getting
> 31 patches is not a problem, those who don't care can simple ignore
> them or collapse the thread in their mail program and so on.

I assume all important people are subscribed to dri-devel anyway so all 
patches should be in their inboxes. But I will try and remember to 
explicitly cc you two.

Regards,

Tvrtko

>>
>> url:    https://github.com/intel-lab-lkp/linux/commits/Tvrtko-Ursulin/drm-amdgpu-Reject-impossible-entities-early/20260128-191117
>> base:   https://gitlab.freedesktop.org/drm/misc/kernel.git drm-misc-next
>> patch link:    https://lore.kernel.org/r/20260128110806.38350-7-tvrtko.ursulin%40igalia.com
>> patch subject: [PATCH v6 06/31] drm/sched: Add some scheduling quality unit tests
>> config: riscv-allyesconfig (https://download.01.org/0day-ci/archive/20260129/202601292335.YI2PBzhs-lkp@intel.com/config)
>> compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6)
>> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260129/202601292335.YI2PBzhs-lkp@intel.com/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@intel.com>
>>> Closes: https://lore.kernel.org/oe-kbuild-all/202601292335.YI2PBzhs-lkp@intel.com/
>>
>> All errors (new ones prefixed by >>):
>>
>>>> drivers/gpu/drm/scheduler/tests/tests_scheduler.c:676:10: error: initializer element is not a compile-time constant
>>                                   drm_sched_scheduler_two_clients_attr),
>>                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>     include/kunit/test.h:224:13: note: expanded from macro 'KUNIT_CASE_PARAM_ATTR'
>>                       .attr = attributes, .module_name = KBUILD_MODNAME}
>>                               ^~~~~~~~~~
>>     1 error generated.
>>
>>
>> vim +676 drivers/gpu/drm/scheduler/tests/tests_scheduler.c
>>
>>     672	
>>     673	static struct kunit_case drm_sched_scheduler_two_clients_tests[] = {
>>     674		KUNIT_CASE_PARAM_ATTR(drm_sched_scheduler_two_clients_test,
>>     675				      drm_sched_scheduler_two_clients_gen_params,
>>   > 676				      drm_sched_scheduler_two_clients_attr),
>>     677		{}
>>     678	};
>>     679	
>>
>