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R . Silva" , "Liam R . Howlett" , Matthew Wilcox , =?utf-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= , Mike Rapoport , Nadav Amit , Pasha Tatashin , Paul Gofman , Peter Xu , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , Yang Shi , Yun Zhou , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: Re: Re: fs/proc/task_mmu: Implement IOCTL for efficient page table scanning Message-ID: <202307211507.xOl45LiR-lkp@intel.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Rspam-User: X-Stat-Signature: nrhau7nakbsm3xz911f9baxmetpr4uh1 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: E009E40009 X-HE-Tag: 1689923974-11400 X-HE-Meta: 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 xivH8DBJ mffMPsifb+ArhSUhG/jkKTcsIqX2soN8Hm/1qJr1s8utvc2PEyF/eXef3hyfmM7Jrlm5QATXl/U6zWWf0ripHMlQw6MR6sL4BaKZ5VqDYIa3jzCsF13aUOUq/jQcBm9HNh6JHuFo880hclC48ZQ5VSUqNWa+w7OgY3texBkSqAUIuSrFCABNNWmb/UrhqvegFCeHtzRixBU16kDyWxNMCvxcN1xI2riCzIMpBfvvrBUtphFge5Ii1cyFtgN0kD7XAAz3nozuJXZkmWDWE9MmL451BoOaXMU5fcO6FjhoeeIWBnR64QyOfI3Y3ZlxPPoPISmEAaK8AzXQ5UThrH3ccQ+6cGIziHGf+rux+hy7IpWjZOAn2L1iRxBM4p1vfY9K7+R6x1RcmsyuZD8rCffA5gfFwoLFBNcpJubRR X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi Michał, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on linus/master v6.5-rc2 next-20230721] [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/Micha-Miros-aw/Re-fs-proc-task_mmu-Implement-IOCTL-for-efficient-page-table-scanning/20230721-033050 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/a0b5c6776b2ed91f78a7575649f8b100e58bd3a9.1689881078.git.mirq-linux%40rere.qmqm.pl patch subject: Re: fs/proc/task_mmu: Implement IOCTL for efficient page table scanning config: powerpc-randconfig-r015-20230720 (https://download.01.org/0day-ci/archive/20230721/202307211507.xOl45LiR-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230721/202307211507.xOl45LiR-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202307211507.xOl45LiR-lkp@intel.com/ All errors (new ones prefixed by >>): >> fs/proc/task_mmu.c:1921:6: error: call to undeclared function 'userfaultfd_wp_async'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1921 | if (userfaultfd_wp_async(vma) && userfaultfd_wp_use_markers(vma)) | ^ >> fs/proc/task_mmu.c:2200:12: error: call to undeclared function 'uffd_wp_range'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 2200 | int err = uffd_wp_range(vma, addr, end - addr, true); | ^ 2 errors generated. vim +/userfaultfd_wp_async +1921 fs/proc/task_mmu.c 1913 1914 static int pagemap_scan_test_walk(unsigned long start, unsigned long end, 1915 struct mm_walk *walk) 1916 { 1917 struct pagemap_scan_private *p = walk->private; 1918 struct vm_area_struct *vma = walk->vma; 1919 unsigned long vma_category = 0; 1920 > 1921 if (userfaultfd_wp_async(vma) && userfaultfd_wp_use_markers(vma)) 1922 vma_category |= PAGE_IS_WPASYNC; 1923 else if (p->arg.flags & PM_SCAN_CHECK_WPASYNC) 1924 return -EPERM; 1925 1926 if (vma->vm_flags & VM_PFNMAP) 1927 return 1; 1928 1929 if (!pagemap_scan_is_interesting_vma(vma_category, p)) 1930 return 1; 1931 1932 p->cur_vma_category = vma_category; 1933 return 0; 1934 } 1935 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki