linux-kernel - Re: [PATCH] hugetlb: simplify hugetlb handling in follow_page

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <202208311341.ybNgt0Kz-lkp@intel.com>
Date:   Wed, 31 Aug 2022 13:08:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     Mike Kravetz <mike.kravetz@...cle.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, inuxppc-dev@...ts.ozlabs.org,
        linux-ia64@...r.kernel.org
Cc:     kbuild-all@...ts.01.org,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        David Hildenbrand <david@...hat.com>,
        "Aneesh Kumar K . V" <aneesh.kumar@...ux.ibm.com>,
        Naoya Horiguchi <naoya.horiguchi@...ux.dev>,
        Michael Ellerman <mpe@...erman.id.au>,
        Muchun Song <songmuchun@...edance.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Mike Kravetz <mike.kravetz@...cle.com>
Subject: Re: [PATCH] hugetlb: simplify hugetlb handling in follow_page_mask

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 v6.0-rc3 next-20220830]
[cannot apply to powerpc/next]
[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-simplify-hugetlb-handling-in-follow_page_mask/20220830-074147
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
config: powerpc-randconfig-r001-20220830 (https://download.01.org/0day-ci/archive/20220831/202208311341.ybNgt0Kz-lkp@intel.com/config)
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/f7dc41c1552ecd1e483a100c8b0921df62980f38
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Mike-Kravetz/hugetlb-simplify-hugetlb-handling-in-follow_page_mask/20220830-074147
        git checkout f7dc41c1552ecd1e483a100c8b0921df62980f38
        # 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:35:
>> include/linux/hugetlb.h:258:21: error: 'hugetlb_follow_page_mask' defined but not used [-Werror=unused-function]
     258 | static struct page *hugetlb_follow_page_mask(struct vm_area_struct *vma,
         |                     ^~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/hugetlb_follow_page_mask +258 include/linux/hugetlb.h

   257	
 > 258	static struct page *hugetlb_follow_page_mask(struct vm_area_struct *vma,
   259					unsigned long address, unsigned int flags)
   260	{
   261		/* should never happen, but do not want to BUG */
   262		return ERR_PTR(-EINVAL);
   263	}
   264	

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