linux-kernel - Re: [PATCH 2/4] mm/sparse-vmemmap: set pte

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Message-ID: <202410111213.dfJ08626-lkp@intel.com>
Date: Fri, 11 Oct 2024 12:42:34 +0800
From: kernel test robot <lkp@...el.com>
To: Bibo Mao <maobibo@...ngson.cn>, Huacai Chen <chenhuacai@...nel.org>,
	Andrey Ryabinin <ryabinin.a.a@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc: oe-kbuild-all@...ts.linux.dev,
	Linux Memory Management List <linux-mm@...ck.org>,
	David Hildenbrand <david@...hat.com>,
	Barry Song <baohua@...nel.org>, loongarch@...ts.linux.dev,
	linux-kernel@...r.kernel.org, kasan-dev@...glegroups.com
Subject: Re: [PATCH 2/4] mm/sparse-vmemmap: set pte_init when vmemmap is
 created

Hi Bibo,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 87d6aab2389e5ce0197d8257d5f8ee965a67c4cd]

url:    https://github.com/intel-lab-lkp/linux/commits/Bibo-Mao/LoongArch-Set-pte-entry-with-PAGE_GLOBAL-for-kernel-space/20241010-115120
base:   87d6aab2389e5ce0197d8257d5f8ee965a67c4cd
patch link:    https://lore.kernel.org/r/20241010035048.3422527-3-maobibo%40loongson.cn
patch subject: [PATCH 2/4] mm/sparse-vmemmap: set pte_init when vmemmap is created
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20241011/202410111213.dfJ08626-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241011/202410111213.dfJ08626-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/202410111213.dfJ08626-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/sparse-vmemmap.c:187:23: warning: no previous prototype for 'kernel_pte_init' [-Wmissing-prototypes]
     187 | void __weak __meminit kernel_pte_init(void *addr)
         |                       ^~~~~~~~~~~~~~~


vim +/kernel_pte_init +187 mm/sparse-vmemmap.c

   186	
 > 187	void __weak __meminit kernel_pte_init(void *addr)
   188	{
   189	}
   190	

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