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Date:   Fri, 28 Jul 2023 16:18:49 +0800
From:   kernel test robot <lkp@intel.com>
To:     Usama Arif <usama.arif@bytedance.com>, linux-mm@kvack.org,
        muchun.song@linux.dev, mike.kravetz@oracle.com, rppt@kernel.org
Cc:     oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
        fam.zheng@bytedance.com, liangma@liangbit.com,
        simon.evans@bytedance.com, punit.agrawal@bytedance.com,
        Usama Arif <usama.arif@bytedance.com>
Subject: Re: [v1 1/6] mm: hugetlb: Skip prep of tail pages when HVO is enabled
Message-ID: <202307281636.rXw2Dlzr-lkp@intel.com>
References: <20230727204624.1942372-2-usama.arif@bytedance.com>
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In-Reply-To: <20230727204624.1942372-2-usama.arif@bytedance.com>
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Hi Usama,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-everything]

url:    https://github.com/intel-lab-lkp/linux/commits/Usama-Arif/mm-hugetlb-Skip-prep-of-tail-pages-when-HVO-is-enabled/20230728-044839
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20230727204624.1942372-2-usama.arif%40bytedance.com
patch subject: [v1 1/6] mm: hugetlb: Skip prep of tail pages when HVO is enabled
config: arm64-randconfig-r016-20230727 (https://download.01.org/0day-ci/archive/20230728/202307281636.rXw2Dlzr-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230728/202307281636.rXw2Dlzr-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/202307281636.rXw2Dlzr-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from mm/hugetlb.c:49:
>> mm/hugetlb_vmemmap.h:56:6: warning: no previous prototype for 'vmemmap_should_optimize' [-Wmissing-prototypes]
      56 | bool vmemmap_should_optimize(const struct hstate *h, const struct page *head)
         |      ^~~~~~~~~~~~~~~~~~~~~~~


vim +/vmemmap_should_optimize +56 mm/hugetlb_vmemmap.h

    55	
  > 56	bool vmemmap_should_optimize(const struct hstate *h, const struct page *head)
    57	{
    58		return false;
    59	}
    60	

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