linux-kernel - Re: [PATCH v5 05/10] PM: EM: Add an iterator and accessor for the performance domain

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Message-ID: <57a19531-de5f-44ee-bff0-d3a956131d29@igalia.com>
Date: Tue, 21 Oct 2025 06:35:31 +0900
From: Changwoo Min <changwoo@...lia.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>, kernel test robot <lkp@...el.com>
Cc: lukasz.luba@....com, len.brown@...el.com, pavel@...nel.org,
 oe-kbuild-all@...ts.linux.dev, christian.loehle@....com, tj@...nel.org,
 kernel-dev@...lia.com, linux-pm@...r.kernel.org, sched-ext@...ts.linux.dev,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 05/10] PM: EM: Add an iterator and accessor for the
 performance domain

Hi Rafael,

On 10/21/25 02:44, Rafael J. Wysocki wrote:
> On Wed, Oct 15, 2025 at 6:50 AM kernel test robot <lkp@...el.com> wrote:
>>
>> Hi Changwoo,
>>
>> kernel test robot noticed the following build errors:
>>
>> [auto build test ERROR on amd-pstate/linux-next]
>> [also build test ERROR on amd-pstate/bleeding-edge linus/master v6.18-rc1 next-20251014]
>> [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/Changwoo-Min/PM-EM-Assign-a-unique-ID-when-creating-a-performance-domain/20251014-082420
>> base:   https://git.kernel.org/pub/scm/linux/kernel/git/superm1/linux.git linux-next
>> patch link:    https://lore.kernel.org/r/20251014001055.772422-6-changwoo%40igalia.com
>> patch subject: [PATCH v5 05/10] PM: EM: Add an iterator and accessor for the performance domain
>> config: i386-buildonly-randconfig-001-20251015 (https://download.01.org/0day-ci/archive/20251015/202510151232.UNZ2J7TZ-lkp@intel.com/config)
>> compiler: gcc-13 (Debian 13.3.0-16) 13.3.0
>> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251015/202510151232.UNZ2J7TZ-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@...el.com>
>> | Closes: https://lore.kernel.org/oe-kbuild-all/202510151232.UNZ2J7TZ-lkp@intel.com/
>>
>> All errors (new ones prefixed by >>):
>>
>>>> kernel/power/energy_model.c:1003:5: error: redefinition of 'for_each_em_perf_domain'
>>      1003 | int for_each_em_perf_domain(int (*cb)(struct em_perf_domain*, void *),
>>           |     ^~~~~~~~~~~~~~~~~~~~~~~
>>     In file included from kernel/power/energy_model.c:20:
>>     kernel/power/em_netlink.h:18:5: note: previous definition of 'for_each_em_perf_domain' with type 'int(int (*)(struct em_perf_domain *, void *), void *)'
>>        18 | int for_each_em_perf_domain(int (*cb)(struct em_perf_domain*, void *),
>>           |     ^~~~~~~~~~~~~~~~~~~~~~~
>>>> kernel/power/energy_model.c:1022:24: error: redefinition of 'em_perf_domain_get_by_id'
>>      1022 | struct em_perf_domain *em_perf_domain_get_by_id(int id)
>>           |                        ^~~~~~~~~~~~~~~~~~~~~~~~
>>     kernel/power/em_netlink.h:24:24: note: previous definition of 'em_perf_domain_get_by_id' with type 'struct em_perf_domain *(int)'
>>        24 | struct em_perf_domain *em_perf_domain_get_by_id(int id)
>>           |                        ^~~~~~~~~~~~~~~~~~~~~~~~
>>
> 
> Please update the patch to address this report and resend it, thanks!

Sure, I will send v6 with these two fixes in.

Regards,
Changwoo Min