linux-kernel - Re: [PATCH v2] SLUB: Add support for per object memory policies

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Message-ID: <202409080304.haF25cFZ-lkp@intel.com>
Date: Sun, 8 Sep 2024 03:55:02 +0800
From: kernel test robot <lkp@...el.com>
To: Christoph Lameter via B4 Relay <devnull+cl.gentwo.org@...nel.org>,
	Vlastimil Babka <vbabka@...e.cz>, Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Roman Gushchin <roman.gushchin@...ux.dev>,
	Hyeonggon Yoo <42.hyeyoo@...il.com>, Yang Shi <shy828301@...il.com>,
	Christoph Lameter <cl@...ux-foundation.org>
Cc: oe-kbuild-all@...ts.linux.dev,
	Linux Memory Management List <linux-mm@...ck.org>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Huang Shijie <shijie@...amperecomputing.com>,
	"Christoph Lameter (Ampere)" <cl@...two.org>
Subject: Re: [PATCH v2] SLUB: Add support for per object memory policies

Hi Christoph,

kernel test robot noticed the following build warnings:

[auto build test WARNING on b831f83e40a24f07c8dcba5be408d93beedc820f]

url:    https://github.com/intel-lab-lkp/linux/commits/Christoph-Lameter-via-B4-Relay/SLUB-Add-support-for-per-object-memory-policies/20240907-000537
base:   b831f83e40a24f07c8dcba5be408d93beedc820f
patch link:    https://lore.kernel.org/r/20240906-strict_numa-v2-1-f104e6de6d1e%40gentwo.org
patch subject: [PATCH v2] SLUB: Add support for per object memory policies
config: sparc64-randconfig-r121-20240907 (https://download.01.org/0day-ci/archive/20240908/202409080304.haF25cFZ-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 14.1.0
reproduce: (https://download.01.org/0day-ci/archive/20240908/202409080304.haF25cFZ-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/202409080304.haF25cFZ-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> mm/slub.c:222:1: sparse: sparse: symbol 'strict_numa' was not declared. Should it be static?
   mm/slub.c: note: in included file (through include/linux/smp.h, include/linux/lockdep.h, include/linux/spinlock.h, ...):
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   mm/slub.c:3036:55: sparse: sparse: context imbalance in '__put_partials' - unexpected unlock
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   mm/slub.c:4327:47: sparse: sparse: context imbalance in '__slab_free' - unexpected unlock
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true

vim +/strict_numa +222 mm/slub.c

   220	
   221	#ifdef CONFIG_NUMA
 > 222	DEFINE_STATIC_KEY_FALSE(strict_numa);
   223	#endif
   224	

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