linux-kernel - Re: [PATCH v4 10/13] x86/mm: Simplify clear_page

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Message-ID: <202506170010.r7INoexI-lkp@intel.com>
Date: Tue, 17 Jun 2025 00:48:43 +0800
From: kernel test robot <lkp@...el.com>
To: Ankur Arora <ankur.a.arora@...cle.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, x86@...nel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	akpm@...ux-foundation.org, bp@...en8.de,
	dave.hansen@...ux.intel.com, hpa@...or.com, mingo@...hat.com,
	mjguzik@...il.com, luto@...nel.org, peterz@...radead.org,
	acme@...nel.org, namhyung@...nel.org, tglx@...utronix.de,
	willy@...radead.org, jon.grimm@....com, bharata@....com,
	raghavendra.kt@....com, boris.ostrovsky@...cle.com,
	konrad.wilk@...cle.com, ankur.a.arora@...cle.com
Subject: Re: [PATCH v4 10/13] x86/mm: Simplify clear_page_*

Hi Ankur,

kernel test robot noticed the following build errors:

[auto build test ERROR on perf-tools-next/perf-tools-next]
[also build test ERROR on tip/perf/core perf-tools/perf-tools linus/master v6.16-rc2 next-20250616]
[cannot apply to acme/perf/core]
[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/Ankur-Arora/perf-bench-mem-Remove-repetition-around-time-measurement/20250616-132651
base:   https://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git perf-tools-next
patch link:    https://lore.kernel.org/r/20250616052223.723982-11-ankur.a.arora%40oracle.com
patch subject: [PATCH v4 10/13] x86/mm: Simplify clear_page_*
config: x86_64-buildonly-randconfig-004-20250616 (https://download.01.org/0day-ci/archive/20250617/202506170010.r7INoexI-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250617/202506170010.r7INoexI-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/202506170010.r7INoexI-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: __kcfi_typeid_memzero_page_aligned_unrolled
   >>> referenced by usercopy_64.c
   >>>               vmlinux.o:(__cfi_memzero_page_aligned_unrolled)

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