linux-kernel - SH: error: implicit declaration of function 'init_cache_node

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Date:   Sat, 13 Nov 2021 17:17:15 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Arnd Bergmann <arnd@...db.de>
Cc:     Rich Felker <dalias@...c.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>
Subject: SH: error: implicit declaration of function 'init_cache_node_node'

on arch/sh/,
CONFIG_SMP is not defined,
CONFIG_NUMA=y,
CONFIG_MEMORY_HOTPLUG is not defined:

../mm/slab.c: In function 'slab_memory_callback':
../mm/slab.c:1143:23: error: implicit declaration of function 'init_cache_node_node'; did you mean 'drain_cache_node_node'? [-Werror=implicit-function-declaration]
  1143 |                 ret = init_cache_node_node(nid);


commit 76af6a054da4
Author: Dave Hansen <dave.hansen@...ux.intel.com>
Date:   Mon Oct 18 15:15:32 2021 -0700

     mm/migrate: add CPU hotplug to demotion #ifdef


How should we handle this config?

-- 
~Randy