linux-kernel - Re: [PATCH 7/8] iommu/amd: Add support for nested domain allocation

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Message-ID: <202508221308.4CwLNeZw-lkp@intel.com>
Date: Fri, 22 Aug 2025 13:39:38 +0800
From: kernel test robot <lkp@...el.com>
To: Suravee Suthikulpanit <suravee.suthikulpanit@....com>, jgg@...dia.com,
	nicolinc@...dia.com
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	robin.murphy@....com, will@...nel.org, joro@...tes.org,
	kevin.tian@...el.com, jsnitsel@...hat.com, vasant.hegde@....com,
	iommu@...ts.linux.dev, santosh.shukla@....com,
	sairaj.arunkodilkar@....com, jon.grimm@....com,
	prashanthpra@...gle.com, wvw@...gle.com, wnliu@...gle.com,
	gptran@...gle.com, kpsingh@...gle.com,
	Suravee Suthikulpanit <suravee.suthikulpanit@....com>
Subject: Re: [PATCH 7/8] iommu/amd: Add support for nested domain allocation

Hi Suravee,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.17-rc2 next-20250821]
[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/Suravee-Suthikulpanit/iommu-amd-Make-amd_iommu_pdom_id_alloc-non-static/20250820-194937
base:   linus/master
patch link:    https://lore.kernel.org/r/20250820113009.5233-8-suravee.suthikulpanit%40amd.com
patch subject: [PATCH 7/8] iommu/amd: Add support for nested domain allocation
config: x86_64-randconfig-123-20250822 (https://download.01.org/0day-ci/archive/20250822/202508221308.4CwLNeZw-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250822/202508221308.4CwLNeZw-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/202508221308.4CwLNeZw-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/iommu/amd/nested.c:15:31: sparse: sparse: symbol 'nested_domain_ops' was not declared. Should it be static?

vim +/nested_domain_ops +15 drivers/iommu/amd/nested.c

    14	
  > 15	const struct iommu_domain_ops nested_domain_ops = {
    16		.free = amd_iommu_domain_free,
    17	};
    18	

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