linux-kernel - Re: [PATCH 2/3] mm: Support tlbbatch flush for a range of PTEs

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Message-ID: <202501061535.zx9E486H-lkp@intel.com>
Date: Mon, 6 Jan 2025 16:22:37 +0800
From: kernel test robot <lkp@...el.com>
To: Barry Song <21cnbao@...il.com>, akpm@...ux-foundation.org,
	linux-mm@...ck.org
Cc: oe-kbuild-all@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	x86@...nel.org, linux-kernel@...r.kernel.org, ioworker0@...il.com,
	david@...hat.com, ryan.roberts@....com, zhengtangquan@...o.com,
	ying.huang@...el.com, kasong@...cent.com, chrisl@...nel.org,
	baolin.wang@...ux.alibaba.com, Barry Song <v-songbaohua@...o.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Anshuman Khandual <anshuman.khandual@....com>,
	Shaoqin Huang <shahuang@...hat.com>, Gavin Shan <gshan@...hat.com>,
	Kefeng Wang <wangkefeng.wang@...wei.com>,
	Mark Rutland <mark.rutland@....com>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Yosry Ahmed <yosryahmed@...gle.com>
Subject: Re: [PATCH 2/3] mm: Support tlbbatch flush for a range of PTEs

Hi Barry,

kernel test robot noticed the following build errors:

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

url:    https://github.com/intel-lab-lkp/linux/commits/Barry-Song/mm-set-folio-swapbacked-iff-folios-are-dirty-in-try_to_unmap_one/20250106-112638
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20250106031711.82855-3-21cnbao%40gmail.com
patch subject: [PATCH 2/3] mm: Support tlbbatch flush for a range of PTEs
config: i386-buildonly-randconfig-002-20250106 (https://download.01.org/0day-ci/archive/20250106/202501061535.zx9E486H-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250106/202501061535.zx9E486H-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/202501061535.zx9E486H-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/x86/include/asm/uaccess.h:17,
                    from include/linux/uaccess.h:12,
                    from include/linux/sched/task.h:13,
                    from include/linux/sched/signal.h:9,
                    from include/linux/rcuwait.h:6,
                    from include/linux/percpu-rwsem.h:7,
                    from include/linux/fs.h:33,
                    from include/linux/cgroup.h:17,
                    from include/linux/memcontrol.h:13,
                    from include/linux/swap.h:9,
                    from include/linux/suspend.h:5,
                    from arch/x86/kernel/asm-offsets.c:14:
>> arch/x86/include/asm/tlbflush.h:283:46: error: unknown type name 'unsignd'; did you mean 'unsigned'?
     283 |                                              unsignd long size)
         |                                              ^~~~~~~
         |                                              unsigned
   make[3]: *** [scripts/Makefile.build:102: arch/x86/kernel/asm-offsets.s] Error 1 shuffle=998720002
   make[3]: Target 'prepare' not remade because of errors.
   make[2]: *** [Makefile:1263: prepare0] Error 2 shuffle=998720002
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:251: __sub-make] Error 2 shuffle=998720002
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:251: __sub-make] Error 2 shuffle=998720002
   make: Target 'prepare' not remade because of errors.


vim +283 arch/x86/include/asm/tlbflush.h

   279	
   280	static inline void arch_tlbbatch_add_pending(struct arch_tlbflush_unmap_batch *batch,
   281						     struct mm_struct *mm,
   282						     unsigned long uaddr,
 > 283						     unsignd long size)
   284	{
   285		inc_mm_tlb_gen(mm);
   286		cpumask_or(&batch->cpumask, &batch->cpumask, mm_cpumask(mm));
   287		mmu_notifier_arch_invalidate_secondary_tlbs(mm, 0, -1UL);
   288	}
   289	

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