Re: [PATCH v3 06/23] mm/memory_hotplug: Introduce default phys_to_target_node() implementation

From: kernel test robot <lkp@intel.com>
To: Dan Williams <dan.j.williams@intel.com>, akpm@linux-foundation.org
Cc: kbuild-all@lists.01.org, David Hildenbrand <david@redhat.com>,
	Mike Rapoport <rppt@linux.ibm.com>, Jia He <justin.he@arm.com>,
	peterz@infradead.org, dave.hansen@linux.intel.com,
	ard.biesheuvel@linaro.org, linux-mm@kvack.org,
	linux-nvdimm@lists.01.org
Subject: Re: [PATCH v3 06/23] mm/memory_hotplug: Introduce default phys_to_target_node() implementation
Date: Sun, 2 Aug 2020 00:39:47 +0800	[thread overview]
Message-ID: <202008020034.hlUZFxY8%lkp@intel.com> (raw)
In-Reply-To: <159625233419.3040297.13342516597848248917.stgit@dwillia2-desk3.amr.corp.intel.com>

Hi Dan,

I love your patch! Yet something to improve:

[auto build test ERROR on 01830e6c042e8eb6eb202e05d7df8057135b4c26]

url:    https://github.com/0day-ci/linux/commits/Dan-Williams/device-dax-Support-sub-dividing-soft-reserved-ranges/20200801-114823
base:    01830e6c042e8eb6eb202e05d7df8057135b4c26
config: x86_64-randconfig-a012-20200731 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce (this is a W=1 build):
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/mmzone.h:813,
                    from include/linux/gfp.h:6,
                    from include/linux/slab.h:15,
                    from include/linux/crypto.h:20,
                    from arch/x86/kernel/asm-offsets.c:9:
>> include/linux/memory_hotplug.h:160:19: error: redefinition of 'phys_to_target_node'
     160 | static inline int phys_to_target_node(u64 start)
         |                   ^~~~~~~~~~~~~~~~~~~
   In file included from include/linux/mmzone.h:14,
                    from include/linux/gfp.h:6,
                    from include/linux/slab.h:15,
                    from include/linux/crypto.h:20,
                    from arch/x86/kernel/asm-offsets.c:9:
   include/linux/numa.h:38:19: note: previous definition of 'phys_to_target_node' was here
      38 | static inline int phys_to_target_node(phys_addr_t addr)
         |                   ^~~~~~~~~~~~~~~~~~~
   make[2]: *** [scripts/Makefile.build:114: arch/x86/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1197: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:185: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

vim +/phys_to_target_node +160 include/linux/memory_hotplug.h

   151	
   152	#ifdef CONFIG_NUMA
   153	extern int memory_add_physaddr_to_nid(u64 start);
   154	extern int phys_to_target_node(u64 start);
   155	#else
   156	static inline int memory_add_physaddr_to_nid(u64 start)
   157	{
   158		return 0;
   159	}
 > 160	static inline int phys_to_target_node(u64 start)
   161	{
   162		return 0;
   163	}
   164	#endif
   165	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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