linux-kernel - Re: [v1 resend 04/12] mm/migrate_device: THP migration of zone device pages

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Message-ID: <202507042336.o2mutGeh-lkp@intel.com>
Date: Fri, 4 Jul 2025 23:35:18 +0800
From: kernel test robot <lkp@...el.com>
To: Balbir Singh <balbirs@...dia.com>, linux-mm@...ck.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Balbir Singh <balbirs@...dia.com>,
	Karol Herbst <kherbst@...hat.com>, Lyude Paul <lyude@...hat.com>,
	Danilo Krummrich <dakr@...nel.org>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Jérôme Glisse <jglisse@...hat.com>,
	Shuah Khan <skhan@...uxfoundation.org>,
	David Hildenbrand <david@...hat.com>,
	Barry Song <baohua@...nel.org>,
	Baolin Wang <baolin.wang@...ux.alibaba.com>,
	Ryan Roberts <ryan.roberts@....com>,
	Matthew Wilcox <willy@...radead.org>, Peter Xu <peterx@...hat.com>,
	Zi Yan <ziy@...dia.com>, Kefeng Wang <wangkefeng.wang@...wei.com>,
	Jane Chu <jane.chu@...cle.com>,
	Alistair Popple <apopple@...dia.com>,
	Donet Tom <donettom@...ux.ibm.com>
Subject: Re: [v1 resend 04/12] mm/migrate_device: THP migration of zone
 device pages

Hi Balbir,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on next-20250704]
[cannot apply to akpm-mm/mm-nonmm-unstable shuah-kselftest/next shuah-kselftest/fixes linus/master v6.16-rc4]
[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/Balbir-Singh/mm-zone_device-support-large-zone-device-private-folios/20250704-073807
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20250703233511.2028395-5-balbirs%40nvidia.com
patch subject: [v1 resend 04/12] mm/migrate_device: THP migration of zone device pages
config: x86_64-randconfig-075-20250704 (https://download.01.org/0day-ci/archive/20250704/202507042336.o2mutGeh-lkp@intel.com/config)
compiler: clang version 20.1.7 (https://github.com/llvm/llvm-project 6146a88f60492b520a36f8f8f3231e15f3cc6082)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250704/202507042336.o2mutGeh-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/202507042336.o2mutGeh-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> Warning: mm/migrate_device.c:89 function parameter 'fault_folio' not described in 'migrate_vma_collect_huge_pmd'
>> Warning: mm/migrate_device.c:707 function parameter 'page' not described in 'migrate_vma_insert_huge_pmd_page'
   Warning: mm/migrate_device.c:707 Excess function parameter 'folio' description in 'migrate_vma_insert_huge_pmd_page'

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki