linux-kernel - Re: [RESEND v4 5/7] mm, slab_common: Make kmalloc_caches[] start at size KMALLOC_MIN

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Date:   Mon, 16 Sep 2019 11:14:19 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Pengfei Li <lpf.vector@...il.com>
Cc:     kbuild-all@...org, akpm@...ux-foundation.org, vbabka@...e.cz,
        cl@...ux.com, penberg@...nel.org, rientjes@...gle.com,
        iamjoonsoo.kim@....com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, guro@...com,
        Pengfei Li <lpf.vector@...il.com>
Subject: Re: [RESEND v4 5/7] mm, slab_common: Make kmalloc_caches[] start at
 size KMALLOC_MIN_SIZE

Hi Pengfei,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3 next-20190904]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Pengfei-Li/mm-slab-Make-kmalloc_info-contain-all-types-of-names/20190916-065820
config: sh-rsk7269_defconfig (attached as .config)
compiler: sh4-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=sh 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> mm/slab_common.c:1144:34: error: 'KMALLOC_INFO_START_IDX' undeclared here (not in a function); did you mean 'KMALLOC_IDX_ADJ_2'?
    kmalloc_info = &all_kmalloc_info[KMALLOC_INFO_START_IDX];
                                     ^~~~~~~~~~~~~~~~~~~~~~
                                     KMALLOC_IDX_ADJ_2

vim +1144 mm/slab_common.c

  1142	
  1143	const struct kmalloc_info_struct * const __initconst
> 1144	kmalloc_info = &all_kmalloc_info[KMALLOC_INFO_START_IDX];
  1145	

---
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