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

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Message-ID: <2011fcea-b4f3-a7ec-e747-6ee0195452e1@gentwo.org>
Date: Thu, 12 Sep 2024 09:15:34 -0700 (PDT)
From: "Christoph Lameter (Ampere)" <cl@...two.org>
To: kernel test robot <lkp@...el.com>
cc: 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>, 
    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>
Subject: Re: [PATCH v2] SLUB: Add support for per object memory policies

On Sun, 8 Sep 2024, kernel test robot wrote:

> 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)

> sparse warnings: (new ones prefixed by >>)
> >> mm/slub.c:222:1: sparse: sparse: symbol 'strict_numa' was not declared. Should it be static?


Ummm.. This code declares strict_numa. Whats wrong with sparc64 / sparse ?

> vim +/strict_numa +222 mm/slub.c
>
>    220
>    221	#ifdef CONFIG_NUMA
>  > 222	DEFINE_STATIC_KEY_FALSE(strict_numa);
>    223	#endif
>    224
>