linux-kernel - Re: [PATCH] hugetlb: don't delete vma_lock in hugetlb MADV

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Date:   Sat, 22 Oct 2022 10:45:38 +0800
From:   kernel test robot <lkp@...el.com>
To:     Mike Kravetz <mike.kravetz@...cle.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Cc:     kbuild-all@...ts.01.org,
        Naoya Horiguchi <naoya.horiguchi@...ux.dev>,
        David Hildenbrand <david@...hat.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Mina Almasry <almasrymina@...gle.com>,
        Peter Xu <peterx@...hat.com>, Rik van Riel <riel@...riel.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Matthew Wilcox <willy@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Wei Chen <harperchen1110@...il.com>, stable@...r.kernel.org
Subject: Re: [PATCH] hugetlb: don't delete vma_lock in hugetlb MADV_DONTNEED
 processing

Hi Mike,

I love your patch! Yet something to improve:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master v6.1-rc1 next-20221021]
[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/Mike-Kravetz/hugetlb-don-t-delete-vma_lock-in-hugetlb-MADV_DONTNEED-processing/20221022-070934
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20221021230722.370587-1-mike.kravetz%40oracle.com
patch subject: [PATCH] hugetlb: don't delete vma_lock in hugetlb MADV_DONTNEED processing
config: powerpc-allnoconfig
compiler: powerpc-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/b52333ec636c58b31a006e7b4a0e6e9f1280ceaa
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Mike-Kravetz/hugetlb-don-t-delete-vma_lock-in-hugetlb-MADV_DONTNEED-processing/20221022-070934
        git checkout b52333ec636c58b31a006e7b4a0e6e9f1280ceaa
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/kernel/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/kernel/setup-common.c:37:
>> include/linux/hugetlb.h:431:13: error: 'clear_hugetlb_page_range' defined but not used [-Werror=unused-function]
     431 | static void clear_hugetlb_page_range(struct vm_area_struct *vma,
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/clear_hugetlb_page_range +431 include/linux/hugetlb.h

   430	
 > 431	static void clear_hugetlb_page_range(struct vm_area_struct *vma,
   432				unsigned long start, unsigned long end)
   433	{
   434	}
   435	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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