linux-kernel - Re: [PATCH] mm, slab: Use kmem_cache_zalloc() instead of kmem_cache_alloc() with flag GFP

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Message-ID: <202006180722.4OI5Yvi6%lkp@intel.com>
Date:   Thu, 18 Jun 2020 07:40:18 +0800
From:   kernel test robot <lkp@...el.com>
To:     Yi Wang <wang.yi59@....com.cn>, cl@...ux.com
Cc:     kbuild-all@...ts.01.org, penberg@...nel.org, rientjes@...gle.com,
        iamjoonsoo.kim@....com, akpm@...ux-foundation.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        xue.zhihong@....com.cn, wang.yi59@....com.cn,
        wang.liang82@....com.cn
Subject: Re: [PATCH] mm, slab: Use kmem_cache_zalloc() instead of
 kmem_cache_alloc() with flag GFP_ZERO.

Hi Yi,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on mmotm/master]

url:    https://github.com/0day-ci/linux/commits/Yi-Wang/mm-slab-Use-kmem_cache_zalloc-instead-of-kmem_cache_alloc-with-flag-GFP_ZERO/20200617-151513
base:   git://git.cmpxchg.org/linux-mmotm.git master
config: x86_64-rhel-7.6 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-13) 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@...el.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> drivers/mtd/ubi/attach.o: warning: objtool: ubi_add_to_av()+0x1c4: unreachable instruction
--
>> mm/slab_common.o: warning: objtool: create_kmalloc_caches()+0x44: unreachable instruction
--
>> fs/btrfs/free-space-cache.o: warning: objtool: btrfs_trim_block_group()+0x201: unreachable instruction
--
>> drivers/acpi/acpica/psutils.o: warning: objtool: acpi_ps_create_scope_op()+0x12: unreachable instruction
--
>> fs/fuse/dev.o: warning: objtool: fuse_force_forget()+0x42: unreachable instruction

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

Download attachment ".config.gz" of type "application/gzip" (47608 bytes)